NOVA
Explore scientific discoveries on television's most acclaimed science documentary series.

London Super Tunnel
S50 Ep1 | 53m 20s
Thousands race to build Europe's biggest construction project–London's new railroad.

Star Chasers of Senegal
S50 Ep2 | 53m 20s
A visionary scientist investigates the deep history of astronomy in West Africa.

Ancient Builders of the Amazon
S50 Ep3 | 53m 22s
Archaeological discoveries reveal traces of ancient civilizations in the Amazon.

New Eye on the Universe
S50 Ep4 | 53m 31s
See the latest stunning images and discoveries from the James Webb Space Telescope.

Arctic Sinkholes
S49 Ep1 | 53m 28s
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate

Secrets in the Scat
S49 Ep2 | 53m 32s
Join biologists on an ingenious hunt for the clues hidden in animal poop.

Great Mammoth Mystery
S49 Ep3 | 53m 26s
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

Augmented
S49 Ep4 | 1h 25m 2s
An ingenious new technology allows prosthetic legs to move and feel like the real thing.

Predicting My MS
S49 Ep101 | 30m 37s
A filmmaker with a rare type of multiple sclerosis explores the mysterious causes of MS.

Determined: Fighting Alzheimer's
S49 Ep5 | 53m 28s
Follow three women enrolled in a new study to try to prevent Alzheimer’s.

Dinosaur Apocalypse: The Last Day
S49 Ep7 | 53m 33s
Scientists use new fossils to reconstruct the day the dinosaurs died.

Dinosaur Apocalypse: The New Evidence
S49 Ep6 | 53m 33s
Striking new fossils paint a picture of life right before the asteroid impact.

Why Ships Crash
S49 Ep8 | 53m 31s
How could a single ship cause a major supply chain crisis around the globe?

Ice Age Footprints
S49 Ep9 | 53m 32s
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

Ultimate Space Telescope
S49 Ep10 | 53m 33s
Discover how NASA engineers built and launched the most ambitious telescope of all time.

Rebuilding Notre Dame
S49 Ep13 | 53m 31s
A team tackles the restoration of iconic Notre Dame Cathedral.

Computers v. Crime
S49 Ep14 | 53m 30s
Is artificial intelligence making policing and courts fairer, or is it increasing bias?

Can Psychedelics Cure?
S49 Ep15 | 53m 47s
Psychedelics are unlocking new ways to treat conditions like addiction and depression.

Ocean Invaders
S49 Ep16 | 53m 32s
Meet one of the ocean’s most beautiful and destructive species: Lionfish.

Nazca Desert Mystery
S49 Ep17 | 53m 31s
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.

Crypto Decoded
S49 Ep18 | 53m 22s
What exactly is crypto, and how does it work? This technology is more than just money.

Zero to Infinity
S49 Ep19 | 53m 32s
Discover how the concepts of zero and infinity revolutionized mathematics.

Secrets in our DNA
S48 Ep1 | 53m 26s
What can DNA testing companies reveal about our ancestry and health, and at what risk?

Looking for Life on Mars
S48 Ep2 | 53m 46s
NASA launches its most ambitious search yet for traces of ancient life on Mars.

Picture a Scientist
S48 Ep3 | 1h 33m 6s
Researchers expose longstanding discrimination against women in science.

Search Engine Breakdown
S48 Ep101 | 20m 37s
Two leading researchers investigate racial bias built into widely used search engines.

Reef Rescue
S48 Ep4 | 53m 21s
Scientists race to help corals adapt to warming oceans through assisted evolution.

Fighting for Fertility
S48 Ep5 | 53m 6s
Meet people struggling with infertility and the challenges of assisted reproduction.

Hindenburg: The New Evidence
S48 Ep6 | 53m 13s
A revealing new investigation of one of history’s most iconic aviation disasters.

Great Electric Airplane Race
S48 Ep7 | 53m 6s
Will electric planes replace polluting airliners and lead to flying taxis in our cities?

Ship That Changed the World
S48 Ep9 | 53m 12s
As we excavate a 500-year-old wreck, learn the secrets behind history’s great ships.

Bat Superpowers
S48 Ep10 | 53m 23s
Could the source of the deadliest viruses hold the secret to a healthier and longer life?

The Cannabis Question
S48 Ep11 | 53m 32s
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.

Particles Unknown
S48 Ep12 | 53m 28s
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.

Arctic Drift
S48 Ep13 | 53m 32s
Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.

Edible Insects
S48 Ep14 | 53m 28s
Take a tasty look at insect foods that could benefit our health and our warming planet.

NOVA Universe Revealed: Age of Stars
S48 Ep15 | 53m 27s
Voyage to discover the sun’s place in a grand cycle of birth, death and renewal.

NOVA Universe Revealed: Milky Way
S48 Ep16 | 53m 26s
Explore the wonders and mysteries of our galaxy—the giant city of stars we call home.

NOVA Universe Revealed: Alien Worlds
S48 Ep17 | 53m 27s
Visit exotic worlds orbiting distant suns as NOVA tackles the big question: are we alone?

NOVA Universe Revealed: Black Holes
S48 Ep18 | 53m 27s
Take a seat on the ultimate thrill ride as NOVA explores the universe’s strangest objects.

NOVA Universe Revealed: Big Bang
S48 Ep19 | 53m 27s
Venture back to the birth of space and time as NOVA probes the mystery of the Big Bang.

Butterfly Blueprints
S48 Ep20 | 53m 31s
Explore how the scientific secrets of butterflies are inspiring technological innovations.

Alaskan Dinosaurs
S48 Ep21 | 53m 32s
Intrepid paleontologists discover that dinosaurs thrived in the Arctic’s cold and dark.

Ancient Maya Metropolis
S48 Ep22 | 53m 32s
Explore great ancient Maya cities and why their inhabitants abandoned them.

Polar Extremes
S47 Ep1 | 1h 53m 6s
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

Dog Tales
S47 Ep2 | 54m 11s
Follow the epic journey of dog domestication and see what science says about dogs’ love.

Cat Tales
S47 Ep3 | 53m 40s
Goddess, demon, house pet? What does science say about the human relationship with cats?

Mysteries of Sleep
S47 Ep4 | 53m 14s
Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?

Cuba's Cancer Hope
S47 Ep5 | 53m 45s
Can Cuba's innovative lung cancer vaccines give new hope to patients across the world?

The Truth About Fat
S47 Ep6 | 53m 38s
Could it be that body fat has more to do with biological processes than personal choices?

Decoding COVID-19
S47 Ep10 | 53m 38s
Scientists race to understand and defeat the coronavirus behind the COVID-19 pandemic.

Eagle Power
S47 Ep7 | 53m 40s
Follow eagles from the nest to the skies to see what makes these predators so remarkable.

CRISPR Gene-Editing Reality Check
S47 Ep111 | 19m 13s
CRISPR gene-editing technology is advancing quickly. What can it do now—and in the future?

Human Nature
S47 Ep11 | 1h 33m 41s
We can now edit the human genome with a tool called CRISPR. But how far should we go?

Secret Mind of Slime
S47 Ep12 | 53m 17s
Meet slime molds: the brainless blobs that can learn, make decisions, and navigate mazes.

A to Z: The First Alphabet
S47 Ep13 | 54m 1s
The birth of writing and the first alphabet were among the world’s most vital inventions.

A to Z: How Writing Changed the World
S47 Ep14 | 53m 31s
The creation of printing, the first information technology, drove empires and revolutions.

Nature's Fear Factor
S47 Ep9 | 53m 31s
Can bringing predators—and fear—back into an ecosystem help restore its natural balance?

Touching the Asteroid
S47 Ep15 | 54m 3s
Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring it back to Earth.

Can We Cool the Planet?
S47 Ep16 | 53m 31s
Scientists look to geoengineering and other methods to cool the planet.

Saving Notre Dame
S47 Ep8 | 53m 47s
Scientists and engineers fight to save Notre Dame Cathedral after the 2019 fire.

Beyond the Elements: Reactions
S47 Ep17 | 53m 17s
Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Indestructible
S47 Ep18 | 53m 17s
Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Life
S47 Ep19 | 53m 17s
Discover the fascinating chemistry that makes our world and everything in it—including us.

Pluto and Beyond
S46 Ep1 | 53m 51s
The New Horizons spacecraft zooms toward an object 4 billion miles from Earth.

Einstein's Quantum Riddle
S46 Ep2 | 53m 34s
Join scientists as they grab light from across the universe to prove quantum entanglement.

Kīlauea: Hawaiʻi on Fire
S46 Ep3 | 53m 21s
Journey to Kīlauea volcano to investigate the eruptions that shook Hawaiʻi in 2018.

Decoding the Great Pyramid
S46 Ep4 | 53m 4s
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.

Rise of the Rockets
S46 Ep5 | 53m 30s
New technologies are promising a new renaissance in space travel.

The Next Pompeii
S46 Ep6 | 53m 10s
In the shadow of Vesuvius and Pompeii, a lesser-known volcano puts Naples at risk.

Saving the Dead Sea
S46 Ep7 | 53m 15s
Can a daring water engineering project revive the Dead Sea without altering its chemistry?

Inside the Megafire
S46 Ep8 | 53m 16s
Scientists investigate the deadly megafires that swept through California in 2018.

First Horse Warriors
S46 Ep9 | 53m 9s
The advent of horse riding changed the course of human history and our genetic makeup.

Lost Viking Army
S46 Ep10 | 53m 9s
Bioarchaeologists investigate a 9th-century mass grave thought to hold a lost Viking army.

Back to the Moon
S46 Ep11 | 53m 39s
Discover why scientists and entrepreneurs alike have their sights set on the Moon again.

The Planets: Inner Worlds
S46 Ep12 | 53m 49s
The rocky planets have similar origins, but only 1 supports life. Was it always this way?

The Planets: Mars
S46 Ep13 | 53m 54s
Before it was a dry planet, Mars was a wet world that may have hosted life.

The Planets: Jupiter
S46 Ep14 | 53m 18s
Jupiter's massive gravitational force has made it a wrecking ball and a protector of Earth

The Planets: Saturn
S46 Ep15 | 53m 54s
NASA's Cassini reveals the mysteries of Saturn's rings—and new hope for life on a moon.

The Planets: Ice Worlds
S46 Ep16 | 52m 48s
Beyond icy worlds of Uranus and Neptune, Pluto dazzles with its mysterious ocean.

Why Bridges Collapse
S46 Ep18 | 53m 9s
Can new engineering techniques help prevent deadly bridge collapses?

Look Who's Driving
S46 Ep19 | 53m 21s
As self-driving cars take to the streets, investigate how they work, and if they are safe.

Rise of the Mammals
S46 Ep17 | 53m 26s
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.

Dead Sea Scroll Detectives
S46 Ep20 | 53m 25s
New technologies unravel the Dead Sea Scrolls’ mysteries and uncover million-dollar fakes.

Decoding da Vinci
S46 Ep21 | 53m 40s
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.

The Violence Paradox
S46 Ep22 | 1h 53m 22s
Is violence actually declining? If so, why? And can we build a more peaceful future?

Animal Espionage
S46 Ep23 | 53m 29s
Camera technology is revolutionizing the study of animals—without them even noticing.

Black Hole Apocalypse
S45 Ep1 | 1h 52m 46s
Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.

First Face of America
S45 Ep4 | 53m 6s
Discover remains of a 13,000 year-old teenager in an underwater cave in Mexico.

The Impossible Flight
S45 Ep3 | 1h 53m 12s
For the first time, two intrepid pilots fly a solar-powered airplane around the world.

Great Escape at Dunkirk
S45 Ep5 | 52m 59s
How courage and ingenuity saved Allied troops during the epic Dunkirk operation in 1940.

Prediction by the Numbers
S45 Ep6 | 53m 6s
Discover why some predictions succeed and others fail as experts forecast the future.

Decoding the Weather Machine
S45 Ep7 | 1h 53m 21s
Discover how Earth’s intricate climate system is changing.

NOVA Wonders What Are Animals Saying?
S45 Ep101 | 52m 57s
Can we crack the code of animal communication?

NOVA Wonders What's Living in You?
S45 Ep102 | 53m 40s
Discover how a world of microbes living in and on you can make you sick.

NOVA Wonders Are We Alone?
S45 Ep103 | 53m 38s
Hunt for clues in the universes to answer one of humanity’s biggest questions.

NOVA Wonders Can We Build a Brain?
S45 Ep104 | 53m 43s
How does today's artificial intelligence actually work-and is it truly intelligent?

NOVA Wonders Can We Make Life?
S45 Ep105 | 53m 46s
A revolution in gene editing technology enables scientists to create and edit DNA.

NOVA Wonders What's the Universe Made Of?
S45 Ep106 | 53m 11s
Peer into the deep unknowns of the universe to explore its mysteries.

Rise of the Superstorms
S45 Ep8 | 53m 26s
Witness the devastation wrought by Hurricanes Harvey, Irma, and Maria in 2017.

Transplanting Hope
S45 Ep9 | 53m 43s
Witness organ transplants as they unfold, and meet patients awaiting lifesaving donations.

Volcano on Fire
S45 Ep10 | 53m 37s
Climb into the crater of Nyiragongo, a seething and active African volcano.

Volcano on the Brink
S45 Ep11 | 53m 37s
Explore Africa’s sleeping giant—Nyamuragira, one of the world’s most dangerous volcanoes.

Operation Bridge Rescue
S45 Ep16 | 53m 30s
Follow engineers and woodworkers as they rebuild an iconic American covered bridge.

Addiction
S45 Ep12 | 53m 45s
Discover how opioid addiction affects the brain and how treatments are saving lives.

Flying Supersonic
S45 Ep13 | 53m 41s
Discover the feats of engineering that made the Concorde the first supersonic airliner.

Thai Cave Rescue
S45 Ep14 | 53m 34s
Follow the harrowing operation to rescue 12 boys stranded in a flooded cave in Thailand.

World's Fastest Animal
S45 Ep17 | 53m 4s
See the world through the eyes of nature’s fastest animal—the peregrine falcon.

Apollo's Daring Mission
S45 Ep18 | 53m 41s
Apollo astronauts and engineers tell the story of the first manned mission to the moon.

Search for the Super Battery
S44 Ep3 | 53m 32s
Explore the hidden world of energy storage and how it holds the keys to a greener future.

Ultimate Cruise Ship
S44 Ep4 | 53m 9s
Join pioneering shipbuilders as they embark on a feat of maritime engineering.

The Origami Revolution
S44 Ep5 | 53m 50s
Engineers are using origami to design drugs, micro-robots, and future space missions.

Why Trains Crash
S44 Ep6 | 53m 51s
Can new crash prevention technology help us avoid deadly train accidents?

Holocaust Escape Tunnel
S44 Ep7 | 54m 14s
At ground zero for the final solution, scientists uncover a story of hope and bravery.

Building Chernobyl's MegaTomb
S44 Ep8 | 52m 55s
Engineers race to build a massive dome to contain the crumbling remains of the reactor.

Poisoned Water
S44 Ep10 | 54m 24s
What exactly went wrong in Flint—and what does it mean for the rest of the country?

Chinese Chariot Revealed
S44 Ep9 | 53m 46s
A team of experts rebuild an ancient battle chariot to help uncover its design secrets.

Eclipse Over America
S44 Ep11 | 53m 2s
The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.

Death Dive to Saturn
S44 Ep12 | 54m 32s
Follow Cassini's final days as it skims the cloud tops before plunging into the planet.

Ghosts of Stonehenge
S44 Ep14 | 53m 40s
Archaeological research uncovers provocative new clues about Stonehenge.

Secrets of the Shining Knight
S44 Ep13 | 53m 30s
Discover the world of medieval knights and see how their armor was made.

Secrets of the Forbidden City
S44 Ep15 | 53m 32s
How has China’s magnificent Forbidden City withstood centuries of earthquakes?

Killer Volcanoes
S44 Ep16 | 54m
Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.

Killer Hurricanes
S44 Ep17 | 53m 1s
Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.

Killer Floods
S44 Ep18 | 54m 10s
Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.

Extreme Animal Weapons
S44 Ep19 | 52m 55s
NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all.

Day the Dinosaurs Died
S44 Ep21 | 53m 14s
Experts drill into the impact crater of an asteroid that created a worldwide cataclysm.

Bird Brain
S44 Ep20 | 53m 32s
Watch as birds solve puzzles and challenge our basic notions of intelligence.

Secrets of the Sky Tombs
S44 Ep1 | 53m 59s
Evidence discovered in the world’s highest tombs reveals ancient rituals and beliefs.

Secret Tunnel Warfare
S43 Ep1 | 52m 52s
In WW1 Allied troops tunneled under enemy lines to create the biggest explosion ever seen.

Life's Rocky Start
S43 Ep2 | 53m 7s
What is the secret link between rocks and minerals, and every living thing on Earth?

Mystery Beneath the Ice
S43 Ep3 | 52m 51s
What’s behind the death of a tiny creature with an outsized role in the Antarctic?

Himalayan Megaquake
S43 Ep4 | 53m 7s
The 2015 quake that rocked Nepal was the biggest in 90 years—can we forecast the next one?

Creatures of Light
S43 Ep9 | 53m 7s
Deep in the ocean, animals that flash, sparkle, and glow use light to survive in the dark.

Memory Hackers
S43 Ep7 | 53m 7s
Scientists are learning how we can edit memories—and delete our worst fears.

Iceman Reborn
S43 Ep5 | 52m 52s
Watch as Otzi, a 5000-year-old mummy, is brought to life and preserved with 3D modeling.

Rise of the Robots
S43 Ep6 | 52m 55s
How will human-like robots change our future and how we see ourselves?

Vikings Unearthed
S43 Ep10 | 1h 52m 52s
Uncover the truth behind the legendary Vikings and their epic journey to the Americas.

Can Alzheimer's Be Stopped?
S43 Ep8 | 52m 51s
Join investigators as they untangle the cause of Alzheimer’s and race to develop a cure.

Wild Ways
S43 Ep11 | 53m 22s
Explore how newly established wildlife corridors offer hope to endangered species.

Operation Lighthouse Rescue
S43 Ep13 | 52m 52s
Join engineers as they race to rescue a historic lighthouse from certain doom.

Bombing Hitler's Supergun
S43 Ep14 | 53m 49s
Discover how Allied forces conspired to destroy one of Hitler’s most diabolical weapons.

15 Years of Terror
S43 Ep16 | 54m 30s
From 9/11 to today’s crowd-sourced violence, trace how terrorists’ strategies have evolved

School of the Future
S43 Ep15 | 1h 53m 34s
How can the science of learning help us rethink the future of education for all children?

Great Human Odyssey
S43 Ep12 | 1h 53m 7s
Follow our ancient ancestors’ footsteps out of Africa and into every corner of our planet.

Super Tunnel
S43 Ep17 | 52m 52s
Join engineers as they build a massive new railway deep beneath the streets of London.

Treasures of the Earth: Metals
S43 Ep19 | 53m 40s
What is it about the nature of metals that have made them a pillar of human civilization?

Treasures of the Earth: Gems
S43 Ep18 | 54m 1s
What processes in the depths of the Earth forge beautiful and precious stones?

Treasures of the Earth: Power
S43 Ep20 | 53m 10s
Drill underground to see the treasures that power our world—today and into the future.

Big Bang Machine
S42 Ep1 | 53m 10s
Explore the deepest mysteries of the early universe and the quest to find the Higgs Boson.

Sunken Ship Rescue
S42 Ep2 | 53m 10s
A team of 500 engineers and divers struggle to raise the Costa Concordia cruise ship.

Sinkholes—Buried Alive
S42 Ep3 | 53m 10s
The catastrophic collapse of the ground beneath our feet is a growing worldwide hazard.

Colosseum: Roman Death Trap
S42 Ep6 | 54m 6s
1500 years ago, how did the Romans engineer bloody spectacles and reenact sea battles?

Petra: Lost City of Stone
S42 Ep5 | 53m 36s
How did early engineers carve tombs into rock cliffs and funnel water to this desert city?

Hagia Sophia: Istanbul's Ancient Mystery
S42 Ep4 | 53m 36s
How has this unique structure, built on a seismic fault, survived centuries of quakes?

The Great Math Mystery
S42 Ep7 | 53m 10s
Is math invented by humans, or is it the language of the universe?

Nazi Attack on America
S42 Ep10 | 53m 10s
A sunken German U-boat off the coast of New Orleans tells the story of Operation Drumbeat.

Lethal Seas
S42 Ep11 | 53m 49s
A unique coral garden in Papua New Guinea shows what the future may hold.

Chasing Pluto
S42 Ep13 | 53m 7s
Watch as the New Horizons spacecraft captures our first clear view of Pluto’s icy surface.

Nuclear Meltdown Disaster
S42 Ep14 | 52m 52s
Go inside the Fukushima power plants for the minute-by-minute story of what went wrong.

Dawn of Humanity
S42 Ep15 | 1h 53m 7s
Deep in a South African cave, an astounding discovery reveals clues to what made us human.

Arctic Ghost Ship
S42 Ep16 | 53m 10s
An astonishing find could solve the mystery of Sir John Franklin’s lost expedition.

Secrets of Noah's Ark
S42 Ep12 | 53m 9s
A team attempts to build the flood boat using inscriptions from an ancient clay tablet.

CyberWar Threat
S42 Ep17 | 53m 10s
As internet connections multiply so do points of attack and risks to national security.

Making North America: Origins
S42 Ep20 | 54m 6s
Experience the colossal geologic forces that shaped our continent over 3 billion years.

Making North America: Life
S42 Ep21 | 54m 6s
How did massive volcanic eruptions, inland seas, and land bridges pave the way for life?

Inside Einstein's Mind
S42 Ep23 | 53m 7s
Retrace the thought experiments that inspired his theory on the nature of reality.

Making North America: Human
S42 Ep22 | 53m 37s
How has the land shaped our lives, from the arrival of the first Americans to today?

Alien Planets Revealed
S41 Ep1 | 53m 7s
Are we alone—and if not, what might the inhabitants of far-flung worlds look like?

Zeppelin Terror Attack
S41 Ep2 | 52m 52s
Discover how Germany’s Zeppelins rained fiery terror on London in World War I.

Killer Typhoon
S41 Ep6 | 52m 52s
What made Haiyan so destructive, and how can we prepare for the next monster storm?

Ghosts of Murdered Kings
S41 Ep3 | 53m 7s
Bronze age bog bodies reveal the strange beliefs of the long-vanished peoples of Europe.

Roman Catacomb Mystery
S41 Ep4 | 52m 52s
Who or what killed hundreds of people hidden in a burial chamber nearly 2,000 years ago?

Great Cathedral Mystery
S41 Ep5 | 53m 30s
Master craftsmen explore how Florence’s monumental dome was built nearly 600 years ago.

Wild Predator Invasion
S41 Ep7 | 53m 7s
Can we return apex predators to their natural environments without endangering humans?

Inside Animal Minds: Bird Genius
S41 Ep8 | 53m 10s
Birds that craft tools and pick locks are rewriting the rules of animal intelligence.

Inside Animal Minds: Dogs & Super Senses
S41 Ep9 | 53m 37s
How do dogs, sharks, dolphins, or birds experience the world?

Inside Animal Minds: Who's the Smartest?
S41 Ep10 | 53m 34s
In this series, go inside the brains of three smart animals—dogs, birds, and dolphins.

Why Sharks Attack
S41 Ep11 | 53m 40s
Will analyzing the hunting instincts of this endangered predator reduce deadly attacks?

Escape from Nazi Alcatraz
S41 Ep12 | 53m 7s
A crack team rebuilds a glider that POWs hoped to catapult off the top of Colditz Castle.

D-Day's Sunken Secrets
S41 Ep13 | 1h 52m 52s
Dive teams, submersibles, and robots explore a massive underwater WWII archeological site.

Vaccines—Calling the Shots
S41 Ep14 | 53m 10s
Examine the science behind vaccinations and the risks of opting out.

Rise of the Hackers
S41 Ep15 | 53m 7s
A new global geek squad is harnessing cryptography to stay a step ahead of cybercriminals.

Surviving Ebola
S41 Ep23 | 53m 7s
As the epidemic threatens to spiral out of control, scientists race to find a cure.

Why Planes Vanish
S41 Ep16 | 53m 7s
Can new technology prevent aircraft like Flight MH370 from disappearing without a trace?

Ben Franklin's Balloons
S41 Ep17 | 52m 52s
Experts recreate the French's daring first manned flights, which Franklin had chronicled.

First Air War
S41 Ep18 | 52m 22s
How did fighter planes evolve from rickety biplanes into deadly machines during WWI?

Emperor's Ghost Army
S41 Ep20 | 52m 52s
Explore the buried clay warriors, chariots, and bronze weapons of China’s first emperor.

Killer Landslides
S41 Ep21 | 52m 52s
Explore the forces behind deadly landslides—and the danger zones for the next big one.

First Man on the Moon
S41 Ep22 | 53m 10s
He risked his life for the nation and became a world icon, but who was Neil Armstrong?

Doomsday Volcanoes
S40 Ep1 | 52m 52s
Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide?

Decoding Neanderthals
S40 Ep2 | 53m 10s
Shared DNA reveals a deep connection with our long-vanished human cousins.

Rise of the Drones
S40 Ep3 | 53m 4s
Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes.

Who Killed Lindbergh's Baby?
S40 Ep4 | 53m 16s
Expert investigators reexamine one of the greatest murder mysteries of all time.

Building Pharaoh's Chariot
S40 Ep5 | 52m 52s
A team uncovers the advanced engineering behind an ancient Egyptian war machine.

Earth From Space
S40 Ep6 | 1h 52m 52s
Detailed satellite images reveal the web of connections that sustain life on Earth.

Mind of a Rampage Killer
S40 Ep8 | 52m 53s
Can science help us understand why some people commit horrific acts of mass murder?

Meteor Strike
S40 Ep13 | 53m 36s
A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?

Ancient Computer
S40 Ep7 | 52m 51s
Learn about the world’s first computer, which was found in a Greek shipwreck.

Australia's First 4 Billion Years: Awakening
S40 Ep9 | 54m 10s
Australia’s landscape holds clues to Earth's early history and the beginning of life.

Australia's First 4 Billion Years: Life Explodes
S40 Ep10 | 54m 10s
Fossils reveal how life’s explosion in the ocean was recreated on dry land.

Australia's First 4 Billion Years: Monsters
S40 Ep11 | 54m 15s
Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.

Australia's First 4 Billion Years: Strange Creatures
S40 Ep12 | 53m 45s
After a massive extinction, diverse marsupials came to dominate this isolated continent.

Manhunt—Boston Bombers
S40 Ep14 | 53m 10s
Which technologies worked in the race to track down the men behind the marathon attack?

Oklahoma's Deadliest Tornadoes
S40 Ep15 | 53m 6s
Hear stories from survivors of Moore’s tornado and meet scientists who stalk these storms.

Ground Zero Supertower
S40 Ep16 | 52m 52s
Engineers race to complete 1 World Trade Center as they grapple with the final challenges.

Making Stuff Faster
S40 Ep18 | 53m 2s
Host David Pogue tries to find out if there are physical limits to how fast we can go.

Making Stuff Wilder
S40 Ep19 | 53m 3s
Host David Pogue travels the globe to explore new technologies inspired by nature.

Making Stuff Colder
S40 Ep20 | 53m 3s
Host David Pogue asks if cold holds the key to technology that can improve our lives.

Making Stuff Safer
S40 Ep21 | 53m 4s
Host David Pogue examines groundbreaking research that aims to keep us out of harm’s way.

Cold Case JFK
S40 Ep22 | 52m 57s
Can modern forensic science uncover fresh clues about the assassination of JFK?

At the Edge of Space
S40 Ep23 | 52m 52s
Can scientists unravel the mysterious phenomena that lurk between Earth and space?

Asteroid: Doomsday or Payday?
S40 Ep24 | 53m 7s
Will future asteroids trigger massive extinctions—or be mined for precious minerals?

Bombing Hitler's Dams
S39 Ep2 | 1h 52m 51s
Can experts recreate an Allied attack from WWII and destroy dams with a bouncing bomb?

3D Spies of WWII
S39 Ep3 | 53m 7s
The allies used special arial photos to deal a blow to the Nazi rocket program.

Mystery of a Masterpiece
S39 Ep4 | 52m 52s
Experts investigate whether a portrait sold for about $20,000 in 1998 is a lost Leonardo.

Ice Age Death Trap
S39 Ep5 | 53m 3s
Experts uncover a site in Colorado packed with fossil mammoths and other extinct beasts.

Separating Twins
S39 Ep8 | 53m 2s
Follow the story of twin girls joined at the head, as surgeons prepare to separate them.

Cracking Your Genetic Code
S39 Ep9 | 53m 45s
We are on the brink of an era of personalized, gene-based medicine. Are we ready for it?

Deadliest Tornadoes
S39 Ep10 | 53m 45s
Why was the 2011 tornado season in the U.S. so extreme, and why did so many die?

Secrets of the Sun
S39 Ep7 | 53m 7s
New tools let scientists better grasp our star's potentially destructive solar storms.

Secrets of the Viking Sword
S39 Ep13 | 52m 53s
A modern-day swordsmith reverse engineers the ultimate weapon of the Middle Ages.

Forensics on Trial
S39 Ep12 | 53m 16s
Virtual autopsies, 3-D fingerprints, and more are making forensics a more precise science.

Mystery of Easter Island
S39 Ep14 | 53m 10s
A team tests a theory on how the ancient stone statues were moved, using a 15-ton replica.

Ultimate Mars Challenge
S39 Ep15 | 53m 10s
NASA employs a "sky crane" maneuver to land the Curiosity rover on Mars.

Inside the Megastorm
S39 Ep16 | 53m 37s
Explore what made Megastorm Sandy so much more devastating than other hurricanes.

Crash of Flight 447
S38 Ep7 | 53m 7s
Forensic investigators reconstruct the final moments of the Air France disaster.

Deadliest Earthquakes
S38 Ep1 | 53m 5s
Big quakes are inevitable, but can we prevent their devastation?

Making Stuff: Stronger
S38 Ep2 | 53m 10s
David Pogue tests his mettle against the world's strongest stuff.

Making Stuff: Smaller
S38 Ep3 | 53m 17s
See the future of tiny stuff -- from silicon chips to micro-robots that probe the body.

Making Stuff: Cleaner
S38 Ep4 | 53m 11s
Can innovative materials help solve the energy crisis and lead to a sustainable future?

Smartest Machine on Earth
S38 Ep6 | 53m 7s
Jeopardy! challenges even the best human minds. Can a computer win the game?

Making Stuff: Smarter
S38 Ep5 | 53m 10s
Explore a new generation of ingenious materials, including real-life invisibility cloaks.

Venom: Nature's Killer
S38 Ep8 | 53m 6s
Hunting down the most venomous animals to reveal their medical mysteries.

Japan's Killer Quake
S38 Ep10 | 53m 25s
An account and investigation of the epic earthquake, tsunami, and nuclear crisis.

Engineering Ground Zero
S38 Ep11 | 53m 8s
Designing and building One World Trade Center and the National 9/11 Memorial and Museum

Surviving the Tsunami
S38 Ep12 | 53m 7s
Gripping stories from Japan offer lessons on how to act in the face of a deadly disaster.

Finding Life Beyond Earth
S38 Ep13 | 1h 43m 15s
We are on the verge of answering one of the greatest questions in history: Are we alone?

Iceman Murder Mystery
S38 Ep15 | 53m 7s
An investigation of a 5,000-year-old mummy reconstructs his death and way of life.

The Fabric of the Cosmos: What Is Space?
S38 Ep16 | 53m 41s
Surprising clues indicate that space is very much something and not nothing.

The Fabric of the Cosmos: The Illusion of Time
S38 Ep17 | 53m 41s
It defines our lives, but what is time really? Have a look into its true nature.

The Fabric of the Cosmos: Quantum Leap
S38 Ep18 | 53m 41s
Take a wild ride into the quantum realm, where even the impossible seems possible.

The Fabric of the Cosmos: Universe or Multiverse?
S38 Ep19 | 53m 10s
Is our universe unique, or could it be just one in an endless "multiverse"?

Killer Subs in Pearl Harbor
S37 Ep1 | 52m 52s
Dive beneath the surface to discover an untold story of WWII.

Building Pharaoh's Ship
S37 Ep2 | 53m 22s
Can the legendary trading vessel of an Egyptian queen sail again?

Extreme Cave Diving
S37 Ep5 | 52m 52s
Scientists journey into one of Earth's most dangerous and beautiful underwater frontiers.

The Pluto Files
S37 Ep6 | 52m 52s
Take a cross-country journey to explore the rise and fall of America's favorite planet.

Mt. St. Helens: Back From the Dead
S37 Ep10 | 53m 7s
30 years after the massive eruption...could it happen again?

Building the Great Cathedrals
S37 Ep11 | 53m 7s
How did medieval engineers construct magnificent skyscrapers of glass and stone?

Emergency Mine Rescue
S37 Ep12 | 52m 59s
Engineers and NASA scientists aid an all-out effort to save 33 trapped Chilean miners.

Trapped in an Elevator
S37 Ep13 | 53m 8s
Elevators have transformed our cities and our lives, but how safe are they?

Secrets of Stonehenge
S37 Ep15 | 53m 7s
New archeological finds shed light on this misunderstood monument of the ancient world.

Quest for Solomon's Mines
S37 Ep16 | 53m 7s
Archeologists seek the truth about the Bible's most famous king and his legendary riches.

The Incredible Journey of the Butterflies
S36 Ep1 | 52m 17s
Follow the 2,000-mile migration of monarchs to a sanctuary in the highlands of Mexico.

The Spy Factory
S36 Ep2 |
Examine the high-tech eavesdropping carried out by the National Security Agency.

Rat Attack
S36 Ep3 | 52m 46s
Why do huge swarms of rats overrun a bamboo forest in India once every half-century?

Extreme Ice
S36 Ep4 | 52m 51s
An acclaimed photographer joins scientists to document the runaway melting of glaciers.

Megabeasts' Sudden Death
S36 Ep7 | 52m 11s
Scientists propose a radical idea of what killed off mammoths and other Ice Age animals.

Doctors' Diaries
S36 Ep8 | 1h 42m 48s
Seven doctors, 21 years... Saving lives is only part of the story.

Darwin's Darkest Hour
S36 Ep5 | 1h 41m 52s
A two-hour drama on the crisis that compelled Darwin to publish his theory of evolution

Hubble's Amazing Rescue
S36 Ep11 | 52m 7s
The unlikely story about how the world's most beloved telescope was saved

Lizard Kings
S36 Ep16 | 52m 27s
Meet the monitors, the largest, fiercest, and craftiest lizards on Earth.

Becoming Human Part 1
S36 Ep13 | 51m 27s
First Steps: 6 million years ago, what set our ancestors on the path from ape to human?

Becoming Human Part 2
S36 Ep14 | 51m 27s
Birth of Humanity: New discoveries reveal how early humans hunted and formed families.

Becoming Human Part 3
S36 Ep15 | 51m 32s
Last Human Standing: Many human species once shared the globe. Why do we alone remain?

What Are Dreams?
S36 Ep12 | 51m 44s
Psychologists and brain scientists have new answers to an age-old question.

What Darwin Never Knew
S36 Ep17 | 1h 52m 7s
One hundred and fifty years later, scientists decode nature's greatest mysteries.

Musical Minds
S36 Ep10 | 52m 2s
Oliver Saks explores how the power of music can make the brain come alive.

Absolute Zero
S35 Ep4 |
The story of the harnessing of cold and the race to reach the lowest temperature possible.

Secrets of the Parthenon
S35 Ep3 | 52m 56s
How did the ancient Athenians build this near-flawless icon of Greece's golden age?

Astrospies
S35 Ep1 | 52m 56s
An elite corps of U.S. astronauts is trained to gather intelligence on the Soviets.

Ape Genius
S35 Ep7 | 52m 35s
Experts zero in on what separates humans from our closest living relatives.

The Four-Winged Dinosaur
S35 Ep2 |
Surprising fosils from northeastern China spur a debate over how birds evolved.

Cracking the Maya Code
S35 Ep8 | 52m 46s
The story behind the centuries-long decipherment of ancient Maya hieroglyphs.

Car of the Future
S35 Ep9 | 53m 12s
The "Car Talk" guys look for a new breed of clean, fuel-efficient vehicles.

Lord of the Ants
S35 Ep10 |
E.O. Wilson's fascination with little creatures has led him to some very big ideas.

Arctic Dinosaurs
S35 Ep11 | 52m 24s
Trek through Alaska to explore how dinosaurs once thrived in polar regions.

Space Shuttle Disaster
S35 Ep12 | 52m 18s
An investigation uncovers the failures and design flaws behind the 2003 Columbia tragedy.

Hunting the Hidden Dimension
S35 Ep14 |
Mysteriously beautiful fractals are deepening our understanding of nature.

Alien From Earth
S35 Ep15 |
Do the remains of a tiny hobbit-like creature belong to a new human species?

The Bible's Buried Secrets
S35 Ep16 | 1h 51m 29s
An archeological detective story traces the origins of the Hebrew Bible.

Ocean Animal Emergency
S35 Ep17 |
Wildlife veterinarians struggle to save injured seals and sea lions.

Is There Life on Mars?
S35 Ep18 | 52m 6s
The search for life on the Red Planet heats up with the discovery of frozen water.

The Big Energy Gamble
S35 Ep19 | 52m 27s
Can California's ambitious plan to cut greenhouse gases actually succeed?

The Last Great Ape
S34 Ep4 | 51m 46s
An expedition into the Congo examines one of our closest living relatives, the bonobo.

Kings of Camouflage
S34 Ep2 | 53m 19s
Meet the cuttlefish, one of the brainiest, most bizarre animals in the ocean.

Forgotten Genius
S34 Ep3 | 1h 51m 41s
The story of how African-American Percy Julian defied the odds to become a famous chemist.

Secrets of the Samurai Sword
S34 Ep12 | 53m 6s
The ancient art and science behind a Japanese warrior's prized weapon

Marathon Challenge
S34 Ep14 | 52m 36s
Explore what it takes for novice runners to make it through a classic test of endurance.

Sputnik Declassified
S34 Ep15 |
Top-secret documents rewrite the history of the famous satellite and the space race.

Judgment Day: Intelligent Design on Trial
S34 Ep16 | 1h 52m 21s
Science is "exhibit A" in a landmark trial on the teaching of evolution.

Master of the Killer Ants
S34 Ep17 | 52m 32s
The Mofu people of Cameroon rely on an an army ant to protect their homes and crops.

Missing in MiG Alley
S34 Ep18 | 51m 45s
What happened to American pilots shot down over Korea half a century ago?

The Great Inca Rebellion
S34 Ep9 | 53m 4s
Mass graves and forensic evidence reveal a complex truth about how the Inca Empire fell.

The Deadliest Plane Crash
S33 Ep15 | 48m 44s
NOVA investigates the worst aviation accident of all time.

Monster of the Milky Way
S33 Ep14 | 52m 12s
Does a supermassive black hole lurk at the center of our galaxy?

Wave That Shook the World
S32 Ep8 | 52m 53s
Experts reconstruct the 2004 Indian Ocean tsunami to prepare for the next big one.

Newton's Dark Secrets
S32 Ep17 | 52m 31s
Centuries old manuscripts reveal the hidden pursuits of a scientific genius.

Storm That Drowned a City
S32 Ep18 | 52m 31s
What led to the devastating floods that Hurricane Katrina unleashed on New Orleans?

Life and Death in the War Zone
S31 Ep6 | 53m 50s
An American combat hospital mobilized in Iraq faces a daily drama of wartime treatment.

Hunt for the Supertwister
S31 Ep7 | 52m 36s
Scientists risk their lives to plumb the secrets of nature's most terrifying killer.

Origins: Back to the Beginning
S31 Ep14 | 53m 31s
Learn about the elements and their roles in the universe.

Origins: How Life Began
S31 Ep12 | 50m 52s
Journey back to the beginning of everything: the universe, Earth, and life itself.

Origins: Earth is Born
S31 Ep11 | 51m 52s
Journey back to the beginning of everything: the universe, Earth, and life itself.

Origins: Where are the Aliens?
S31 Ep13 | 53m 31s
Journey back to the beginning of everything: the universe, Earth, and life itself.

Ancient Refuge in the Holy Land
S31 Ep18 | 53m 42s
Israel's remote Cave of Letters holds clues to a Jewish uprising against the Romans.

The Elegant Universe: Part 1
S30 Ep12 | 52m 55s
Combining the laws of the universe in one theory that explains it all is the Holy Grail

The Elegant Universe: Part 2
S30 Ep13 | 52m 56s
Do miniscule vibrating strands of energy hold the key to a unified theory of physics?

The Elegant Universe: Part 3
S30 Ep14 | 53m 7s
Will experimental particle physics confirm the wild predictions of string theory?

Volcano Above the Clouds
S30 Ep17 | 53m 16s
Join an expedition to the glacier-capped summit of Kilimanjaro, Africa's tallest mountain.

Galileo's Battle for the Heavens
S29 Ep12 | 1h 52m 59s
The story of Galileo, his discoveries, and his struggle with the Catholic Church.

Cancer Warrior
S28 Ep5 | 53m 42s
Follow Dr. Judah Folkman's quest to fight cancer by cutting off blood flow to tumors.

Life's Greatest Miracle
S28 Ep16 | 53m 56s
Trace human development from embryo to newborn through stunning microimagery.

Dying to Be Thin
S27 Ep15 | 53m 40s
Anorexia, bulimia, and other eating disorders are on the rise. What can be done?

B-29 Frozen in Time
S23 Ep3 | 53m 54s
In Greenland, a deserted B-29 bomber awaits rescue for more than fifty years.

Einstein Revealed
S23 Ep11 | 1h 46m 18s
Einstein's letters shed light on his revolutionary discoveries and his forbidden loves.

Astronaut Walter Cunningham on the Historic Apollo 7 Mission
32m 26s
He discussed the first crewed Apollo mission, Apollo 7, with NOVA in 1998.

London Super Tunnel Preview
S50 Ep1 | 27s
Thousands race to build Europe's biggest construction project–London's new railroad.

How Engineers Soundproof a New Underground Train Track
S50 Ep1 | 2m 57s
Part of the new London track is directly below an iconic performing arts center.

These Trains Take Over for Their Drivers to Cut Travel Time
S50 Ep1 | 2m 54s
Can trains save their drivers time by changing direction on their own?

Star Chasers of Senegal Preview
S50 Ep2 | 27s
A visionary scientist investigates the deep history of astronomy in West Africa.

How to Calculate Time With an Islamic Astrolabe
S50 Ep2 | 2m 38s
It is one of Islamic science’s most important and complex astronomical instruments.

These Ancient Stones Helped Track the Seasons
S50 Ep2 | 2m 57s
Mysterious stone arrangements reveal Senegal’s ancient connections to astronomy.

The Mystery and Physics of the Spiral Football Pass
3m 43s
There are two key players involved: gravity and angular momentum.

Ancient Builders of the Amazon Preview
S50 Ep3 | 27s
Archaeological discoveries reveal traces of ancient civilizations in the Amazon.

Ancient Cliff Paintings in the Amazon
S50 Ep3 | 3m 20s
The painted cliffs of La Lindosa open a window onto the lives of Ice Age Amazonians.

Ancient Pyramids Uncovered in the Amazon
S50 Ep3 | 3m 56s
This discovery rewrites the history of complex societies on the continent.

New Eye on the Universe Preview
S50 Ep4 | 27s
See the latest stunning images and discoveries from the James Webb Space Telescope.

How NASA Colors Images of the Universe
S50 Ep4 | 3m 8s
Data image developers combine science and art to bring color to JWST's images.

JWST Searches for Life in Our Solar System
S50 Ep4 | 6m 22s
Can NASA’s most powerful telescope detect key ingredients for life as we know it?

Weathering the Future Preview
S50 Ep5 | 30s
Americans use ancient wisdom and new technology to fight extreme weather.

Chasing Carbon Zero Preview
S50 Ep6 | 29s
Here’s how the U.S. could reach net-zero carbon emissions by 2050.

Could Antiviral Pills Change the Course of the Pandemic?
8m 12s
The FDA authorized use of the first antiviral pills to treat COVID-19 at home.

From Prison to Careers in STEM
8m 12s
Watch how four accomplished scientists began their careers or education in prison.

Can South Carolina's Salt Marshes Be Saved?
8m 27s
Many seafood dishes depend on an ecosystem that's easy to overlook: The salt marsh.

Arctic Sinkholes Preview
S49 Ep1 | 30s
In the Arctic, enormous releases of methane, a potent greenhouse gas, threaten the climate

What's Causing Water to Bubble in the Arctic?
S49 Ep1 | 4m 21s
Scientists look for the source of large bubbles in an Arctic lake.

Portable Homes Help Communities Adapt to Climate Change
S49 Ep1 | 4m 18s
See how one Alaskan community is dealing with the effects of rising Arctic temperatures.

Secrets in the Scat Preview
S49 Ep2 | 30s
Join biologists on an ingenious hunt for the clues hidden in animal poop.

Can Poop Help Protect Rhinos from Poachers?
S49 Ep2 | 3m 3s
To “scatologists,” a pile of fresh scat in the wild is a treasure trove of information.

Introducing NOVA's Financial Lab
1m 22s
Practice making financial decisions by taking care of your pet through three mini-games.

Great Mammoth Mystery Preview
S49 Ep3 | 28s
Sir David Attenborough explores a site with traces of ancient mammoths and Neanderthals.

What is 5G, and is it Safe to Use on Planes?
5m 39s
The 5G signal works in a fundamentally different way from 4G.

The Mammoth Species You've Never Heard Of
S49 Ep3 | 3m
These bones could have belonged to some of the last surviving steppe mammoths in Britain.

Augmented Preview
S49 Ep4 | 31s
An ingenious new technology allows prosthetic legs to move and feel like the real thing.

Predicting My MS Preview
S49 Ep101 | 38s
A filmmaker with a rare type of multiple sclerosis explores the mysterious causes of MS.

Climbers Tell Story of Mt. Washington Climbing Accident
S49 Ep4 | 5m 10s
Climbing partners have a harrowing experience on Mount Washington in NH.

Animal-to-Human Organ Transplants
4m 59s
In a first, a 57-year-old man received a heart transplant from a genetically modified pig.

How Neanderthals Came to Inhabit Northwest Europe
S49 Ep3 | 2m 45s
Stone tools reveal that four species of human have occupied Britain.

Increasing Access to Brain-Controlled Prosthetics
S49 Ep4 | 2m 55s
Bionic interventions might allow people to one day design their own limbs.

The Evolution of Prosthetic Leg Technology
S49 Ep4 | 5m 11s
Amputation procedures haven't changed much since the Civil War era.

War Threatens Ukrainian Nuclear Power Plants
7m 9s
Ukraine's 15 active nuclear reactors generate about half of the country's electricity.

Determined: Fighting Alzheimer's Preview
S49 Ep5 | 28s
Follow three women enrolled in a new study to try to prevent Alzheimer’s.

Depression Can Affect Memory—and Mirror Signs of Alzheimer's
S49 Ep5 | 1m 57s
Exercise may help depression patients regain memory.

How an Alzheimer’s study reached Black communities
S49 Ep5 | 2m 32s
Getting Black individuals involved in a study requires more than just asking them.

Try Passing this Alzheimer's Screening Test
S49 Ep5 | 2m 54s
You have 10 seconds to memorize six shapes.

Dinosaur Apocalypse: The New Evidence Preview
S49 Ep6 | 29s
Striking new fossils paint a picture of life right before the asteroid impact.

Dinosaur Apocalypse: The Last Day
S49 Ep7 | 29s
Scientists use new fossils to reconstruct the day the dinosaurs died.

New Fossil May Reveal Clues to Dinosaurs' Final Days
S49 Ep7 | 2m 44s
This might be the first time in 66 million years that this leg has seen the light of day.

Inside a Fossilized Pterosaur Egg
S49 Ep6 | 2m 58s
Bones and shells can tell us a lot about how these creatures lived.

Why Ships Crash Preview
S49 Ep8 | 29s
How could a single ship cause a major supply chain crisis around the globe?

The Crash That Shut Down the Global Economy, Explained
S49 Ep8 | 3m 31s
The Suez Canal is one of the most important shipping lanes in the world.

Ice Age Footprints Preview
S49 Ep9 | 30s
Ancient footprints provide new evidence of humans and extinct giant beasts of the Ice Age.

Humans May Have Lived in North America Earlier Than Thought
S49 Ep9 | 4m 16s
Scattered seeds help reveal when ancient humans first left footprints in North America.

This Device Smells Diseases by Imitating a Dog's Nose
4m 43s
Researchers at MIT create an electronic nose using chemical odor sensors.

Ultimate Space Telescope Preview
S49 Ep10 | 28s
Discover how NASA engineers built and launched the most ambitious telescope of all time.

How Scientists Created JWST's First Test Image
S49 Ep10 | 4m 50s
A test image from the James Webb Space Telescope unexpectedly captured many galaxies.

NASA Reacts to the James Webb Space Telescope Images
S49 Ep10 | 1m 55s
This NASA team was the first to see the new James Webb Space Telescope images.

Why Distant Galaxies Look Red
S49 Ep10 | 3m 40s
The farther away a galaxy is, the redder it appears to our telescopes.

The False Promise of Cloning Your Pet
6m 37s
Cloning has come a long way since Dolly the sheep, but it still has limits.

How Seaweed May Help Revive Our Oceans
4m 39s
Kelp’s ability to capture carbon from the ocean could help save marine ecosystems.

The Hidden Cause of Traffic Jams—and How to Solve Them
6m 5s
Self-driving vehicles might be the solution for phantom traffic jams.

Sharks Are Showing Up Earlier—and Staying Longer
4m 18s
Tiger sharks are showing up off the coast of New England earlier. What’s going on?

Computers v. Crime Preview
S49 Ep14 | 30s
Is artificial intelligence making policing and courts fairer, or is it increasing bias?

Watch the DART Spacecraft Smash into an Asteroid
51s
Could we deflect an asteroid barreling toward Earth? DART offers a first test.

How Storm Surges Work—and Why They’re So Deadly
4m 49s
The deadliest part of a hurricane isn’t the wind–it’s water.

How Police Use Algorithms to Predict Crime
S49 Ep14 | 5m 25s
Police are using artificial intelligence to predict crime.

Can Psychedelics Cure? Preview
S49 Ep15 | 30s
Psychedelics are unlocking new ways to treat conditions like addiction and depression.

Psychedelics as Medicine: The History of Peyote
S49 Ep15 | 4m 2s
Indigenous communities use this small psychedelic cactus as a medicinal herb.

How Psychedelics Change the Brain
S49 Ep15 | 4m 11s
Scientists found that psychedelic drugs may change how brain regions talk to each other.

Why NASA is Going Back to the Moon
4m 53s
NASA’s Artemis I is a big step toward sending humans back to the moon.

Ocean Invaders
S49 Ep16 | 28s
Meet one of the ocean’s most beautiful and destructive species: Lionfish.

Divers Hunt Venomous Fish Invading Our Oceans
S49 Ep16 | 3m
Divers help turn the lionfish’s Atlantic invasion into a commercial opportunity.

Cats Might Be One of the Most Invasive Species
S49 Ep16 | 2m 12s
Cats are responsible for hundreds of millions, if not billions of birds being eaten every

Nazca Desert Mystery Preview
S49 Ep17 | 27s
Who created the Nazca lines and why? New clues to one of the greatest ancient enigmas.

Who Carved These Mysterious Lines in the Desert?
S49 Ep17 | 6m 57s
Learn more about the ancient Nazca people and their ancestors, the Paracas.

Artificial Intelligence Reveals Ancient Desert Drawings
S49 Ep17 | 4m 25s
Can AI help archaeologists uncover more Nazca geoglyphs?

Why Experts Say Permanent Daylight Saving Time is Unhealthy
4m 30s
Early morning sunlight is the key to setting our internal clocks.

Crypto Decoded Preview
S49 Ep18 | 30s
What exactly is crypto, and how does it work? This technology is more than just money.

The History of Crypto Goes Further Back Than You Think
S49 Ep18 | 10m 2s
Computer scientists and digital rebels built the revolutionary crypto system.

How the NFT Was Invented
S49 Ep18 | 3m 30s
An artist and a tech entrepreneur invented the non-fungible token, or NFT, in 24 hours.

Zero to Infinity Preview
S49 Ep19 | 28s
Discover how the concepts of zero and infinity revolutionized mathematics.

The Area of a Circle, Explained with Pizza
S49 Ep19 | 4m 23s
Finding the area of a circle is easy with pizza and infinity.

Thought Experiment: The Infinite Hilbert's Hotel
S49 Ep19 | 4m 9s
At the Hilbert’s Hotel, there’s always room for one more.

Oldest DNA Ever Found Reveals Secrets of the Ancient Arctic
4m 3s
Researchers drilled in the Kap København formation in Greenland to collect soil samples.

This Teen Calculates Mind-Boggling Math in Her Head
3m 10s
Apoorva Panidapu earned the moniker “the human calculator” for her math skills.

Scientists Make Breakthrough in Nuclear Fusion
1m 53s
The advancement could help pave the way for new energy sources.

Secrets in our DNA Preview
S48 Ep1 | 27s
What can DNA testing companies reveal about our ancestry and health, and at what risk?

Half Sisters Unite Thanks to DNA Testing
S48 Ep1 | 4m 19s
In 2018, June Smith takes a consumer DNA test, hoping to solve a longstanding mystery.

How—and why—DNA Testing Uses Biased Reference Databases
S48 Ep1 | 5m 20s
Are DNA ancestry tests equally accurate for all test takers?

This University Monitors COVID-19 Through Saliva Testing
6m 53s
The University of Illinois is trying to control the spread of COVID-19 by collecting spit.

Lingering Symptoms from COVID-19 are “Unprecedented”
5m 5s
Could an out-of-order immune system be to blame?

New COVID-19 Variants Spread More Easily
7m 15s
Why are the new coronavirus variants making COVID-19 more transmissible?

Dream Hacking: Decisions, Addictions, and Sleep
14m 34s
Watch the first-ever video documenting this live two-way dream communication.

How Mask-Wearing Misinformation Became a Reality
5m 38s
There are various reasons why people believe in misinformation.

Looking for Life on Mars Preview
S48 Ep2 | 30s
NASA launches its most ambitious search yet for traces of ancient life on Mars.

Why NASA is Back on Mars
S48 Ep2 | 5m 10s
NASA's Perseverance rover and the first-ever space helicopter landed on Mars.

This NASA Scientist Helps Prevent Mars from Contamination
S48 Ep2 | 4m 58s
How do you keep Earth microbes from contaminating Mars?

Feast Your Eyes on the First-Ever Mars 2020 Mission Videos
S48 Ep2 | 4m 31s
Watch amazing high-definition footage of the Perseverance landing.

The Big Lie about Monarch Butterflies
9m 25s
Join NOVA producer Arlo Pérez as he unlearns a “fact” he was taught as a child.

Origins of Misinformation and How it Spreads
5m 47s
We're vulnerable to sharing misinformation because of the way that we communicate.

Texas' Power Grid Trouble is Far From Over
8m 23s
Why it means we need to rethink our aging energy infrastructure throughout the U.S.

Picture a Scientist Preview
S48 Ep3 | 29s
Researchers expose longstanding discrimination against women in science.

Reef Rescue Preview
S48 Ep4 | 28s
Scientists race to help corals adapt to warming oceans through assisted evolution.

Scientists Breed a New Generation of "Super Corals"
S48 Ep4 | 4m 45s
Coral reefs are in crisis as ocean heatwaves are draining them of life.

GameStop, Reddit, and the Rise of Risky Trades
8m 35s
Investing in stock call options is extremely risky.

Are You Feeding a Powerful Facial Recognition Algorithm?
6m 55s
This algorithm isn't looking for your face only in the photos you've posted.

The Coronavirus Pandemic's Toll on Mental Health
6m 6s
We should treat mental health with the same sense of urgency as the COVID pandemic.

Fighting for Fertility Preview
S48 Ep5 | 28s
Meet people struggling with infertility and the challenges of assisted reproduction.

To Start a Family, This Woman Turned to Egg Freezing
S48 Ep5 | 7m 34s
A woman is born with over a million eggs, but only 10% remain by the time she's 30.

How Weathering Affects Black Women's Fertility
S48 Ep5 | 4m 54s
Generations of stress impact Black women on their journey to motherhood.

Can Two Men Make a Baby?
S48 Ep5 | 5m 41s
LGBTQ+ couples face many hurdles to biological reproduction.

Hindenburg: The New Evidence Preview
S48 Ep6 | 30s
A revealing new investigation of one of history’s most iconic aviation disasters.

Sciencing Out: Making Science Accessible and Engaging
9m 25s
For centuries, women all around the world have educated the public about science.

Newly Analyzed Footage Helps Solve Hindenburg Mystery
S48 Ep6 | 6m 45s
A new piece of the Hindenburg puzzle has surfaced.

Great Electric Airplane Race Preview
S48 Ep7 | 29s
Will electric planes replace polluting airliners and lead to flying taxis in our cities?

You Could Take a Flying Car to Work Someday
S48 Ep7 | 5m 23s
Autonomous air taxies are closer to becoming a reality.

Sciencing Out: How Trust in Medicine and Science is Built
14m 11s
Trust can be a delicate matter—especially when it’s related to science and medicine.

Ship That Changed the World Preview
S48 Ep9 | 29s
As we excavate a 500-year-old wreck, learn the secrets behind history’s great ships.

Mysterious Bones Found in 500-Year-Old Shipwreck
S48 Ep9 | 3m 3s
Sometimes archaeology can reveal things that written sources can't.

How to Make Birdwatching More Inclusive
3m 7s
Step One: Start paying attention to the birds in your area.

Sciencing Out: What it Means to Make Information Tangible
14m 22s
There are experts whose job it is to make numbers tangible and help us visualize data.

The Science of Exercise—and Getting Back in the Game
30m 1s
What happens to the bodies and minds of athletes when training is put on hold?

Fact or CAP? How to Deal With Clickbait
7m 7s
Watch out for clickbait that’s designed to spread misinformation.

Can Humans Deflect an Asteroid?
6m 12s
Asteroid impacts on Earth don't happen very often—but they do happen.

Preparing for the Pacific Northwest's Next Major Earthquake
6m 12s
The Pacific Northwest is due for a major earthquake.

How California's Droughts Lead to Other Disasters
5m 54s
Wildfires, heat waves, flooding, and water shortages are on the rise.

Using Technology to Cope With Drought
28m
The U.S. is experiencing increasingly worse drought conditions.

How COVID-19 and Climate Change Affect Breathing
4m 13s
COVID insidiously impacts a man's lungs — giving him reasons to appreciate each breath.

What will it take to get out of this pandemic?
28m 19s
COVID-19 infection continues to spread rapidly across most of the world.

How Wildfires and Ozone Led to Terrible Air Quality
6m 5s
Here’s how poor air quality can lead to serious health effects.

Bat Superpowers Preview
S48 Ep10 | 30s
Could the source of the deadliest viruses hold the secret to a healthier and longer life?

Why are Bats Tolerant of the Diseases They Carry?
S48 Ep10 | 2m 34s
Viruses circulate so well within bat colonies — could they hold secrets to better health?

Unique Adaptations may Explain Bats' Resistance to Viruses
S48 Ep10 | 3m 2s
Bats are really effective at dumping heat to keep their body temperatures fairly normal.

Lights Flashed in the Sky During Mexico's Latest Earthquake
4m 40s
On September 7, 2021, a magnitude 7.0 earthquake rocked southwest Mexico.

Genetically Modifying Mosquitoes to Reduce their Numbers
5m 42s
Mosquitoes can be annoying, but how far would we go to stop them?

The Cannabis Question Preview
S48 Ep11 | 30s
As state-legalized cannabis spreads, NOVA explores its little-known risks and benefits.

What is the Endocannabinoid System?
S48 Ep11 | 3m 49s
Cannabinoid receptors, named after cannabis, are found in nearly every organ in the body.

A Veteran's Story of Medical Cannabis Use and Arrest
S48 Ep11 | 5m 34s
For Black people in America, the war on cannabis is still ongoing.

How Some Parents Brought CBD to Market to Treat Epilepsy
S48 Ep11 | 7m 1s
About a third of epilepsy patients don't respond to medication.

How Cannabis Affects Teens' Brains
S48 Ep11 | 3m 28s
Our natural endocannabinoids reach their highest levels as the brain develops.

Particles Unknown Preview
S48 Ep12 | 30s
Join the hunt for the universe’s most common—yet most elusive and baffling—particle.

Arctic Drift Preview
S48 Ep13 | 30s
Join scientists on a daring polar voyage to uncover the Arctic’s climate secrets.

This Detector Can Catch Cosmic Neutrinos
S48 Ep12 | 3m 20s
Neutrinos could help unlock one of the biggest mysteries in physics today.

MOSAiC Scientists Measure Arctic Sea Ice Volume
S48 Ep13 | 3m 5s
Just how much ice is in the Arctic Ocean?

The Arctic Jet Stream Affects Global Climate. Here's Why.
S48 Ep13 | 3m 3s
The jet stream is a band of wind that influences weather in the northern hemisphere.

Can this Cuttlefish Pass an Intelligence Test?
9m 51s
Witness a hungry cuttlefish take part in an oddly adorable, psychological test.

Edible Insects Promo
S48 Ep14 | 29s
Take a tasty look at insect foods that could benefit our health and our warming planet.

Insects Make Protein More Efficiently Than Mammals
S48 Ep14 | 5m 14s
Most of the calories insects eat can be converted into nutrients that we can then eat.

How Does a Brain on THC Compare to a Brain on CBD?
4m 30s
Scientists are working to understand the true effects of cannabis on the brain.

NOVA Universe Revealed Series Teaser
1m
Take a ringside seat as NOVA captures moments of high drama when the cosmos changed.

NOVA Universe Revealed: Age of Stars Preview
S48 Ep15 | 30s
Voyage to discover the sun’s place in a grand cycle of birth, death and renewal.

How a Star Dies in a Supernova
S48 Ep15 | 2m 48s
The saying "live fast, die young" applies to stars, astrophysicist Grant Tremblay says.

Georgia’s First Black-Owned Hemp Farm
3m 32s
The legal definition of hemp is a cannabis plant that has no more than 0.3% of THC.

NOVA Universe Revealed: Milky Way Preview
S48 Ep16 | 30s
Explore the wonders and mysteries of our galaxy—the giant city of stars we call home.

The Milky Way and Andromeda Galaxies will Someday Collide
S48 Ep16 | 2m 56s
The Milky Way as we know it today is not eternal.

Gaze at Galaxies with NASA's Hubble Space Telescope
S48 Ep16 | 2m 44s
The Hubble Space Telescope has revolutionized our understanding of the universe.

How Long Does Covid-19 Immunity Last?
8m 43s
How your immune system is primed may impact your long-term immunity.

NOVA Universe Revealed: Alien Worlds Preview
S48 Ep17 | 30s
Visit exotic worlds orbiting distant suns as NOVA tackles the big question: are we alone?

Yes, There's Really a Frozen Exoplanet named Hoth
S48 Ep17 | 3m 7s
No one predicted that planets like this were even possible.

NOVA Universe Revealed: Black Holes Preview
S48 Ep18 | 30s
Take a seat on the ultimate thrill ride as NOVA explores the universe’s strangest objects.

Sagittarius A*: The Void at the Center of our Galaxy
S48 Ep18 | 1m 54s
Scientists believe a giant black hole sits at the center of our galaxy.

NOVA Universe Revealed: Big Bang Preview
S48 Ep19 | 30s
Venture back to the birth of space and time as NOVA probes the mystery of the Big Bang.

Was the Big Bang an Explosion or Something Else?
S48 Ep19 | 3m 1s
Energy transformed into matter during the Big Bang.

The Link Between High-Potency Cannabis Use and Psychosis
4m 42s
As cannabis becomes more mainstream, use may come with a mental health risk.

Could a "Dune" Sandworm Exist in Real Life?
7m 7s
There are ecological and evolutionary limits to consider.

Take a Ride into a Supermassive Black Hole
S48 Ep18 | 2m 41s
Black holes distort the space-time fabric.

Scientists Capture the First Light from the Big Bang
S48 Ep19 | 2m 57s
Scientists now have a detailed image of the entire universe in its infancy.

Where Did the Cannabis Plant Come From?
4m 10s
What cannabis DNA can reveal about the plant’s evolution.

What will the James Webb Space Telescope do?
5m 44s
This telescope could revolutionize our understanding of the universe.

Meet the Marvelous Christmas Tree Worm
5m 20s
This festive-sounding relative to earthworms might help protect coral reefs.

Why is There a Global Chip Shortage?
5m 15s
The pandemic made computer chip supply chain issues even worse.

Butterfly Blueprints Preview
S48 Ep20 | 29s
Explore how the scientific secrets of butterflies are inspiring technological innovations.

How the Morpho Butterfly Gets its Iridescent Color
S48 Ep20 | 2m 22s
How does nature produce a color that looks so unnatural?

Alaskan Dinosaurs Preview
S48 Ep21 | 29s
Intrepid paleontologists discover that dinosaurs thrived in the Arctic’s cold and dark.

Fossilized Dung Reveals Clues About Dinosaurs' Diet
S48 Ep21 | 3m 6s
Where are you going to get protein if you're an herbivore?

Did Some Dinosaurs Breed in the Arctic?
S48 Ep21 | 3m
70 million years ago, several species of dinosaur nested in the Arctic.

High-Risk High-Rise Preview
S48 Ep8 | 30s
Can skyscrapers be made safer, more efficient, and livable in our rapidly growing cities?

Ancient Maya Metropolis Preview
S48 Ep22 | 30s
Explore great ancient Maya cities and why their inhabitants abandoned them.

LIDAR Technology Helps Uncover a Maya Metropolis
S48 Ep22 | 3m 9s
Light Detection and Ranging, LIDAR, sees through the jungle to reveal what lies beneath.

Why Trees Are Living Climate Records
S47 Ep1 | 1m 29s
Trees have an environmental record etched into their very wood.

Polar Extremes Preview
S47 Ep1 | 3m 19s
Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.

What if Carbon Left Your Tailpipe as Solid Chunks?
S47 Ep1 | 2m 12s
Together, all the cars on Earth would leave quite the pile of carbon behind—every day.

Plant Fossils Hint at Arctic's Swampy Past
S47 Ep1 | 3m 2s
Learn more about a lush forest that once dominated the Arctic.

What did the East Coast Look Like 3 Million Years Ago?
S47 Ep1 | 3m 21s
Scientists dig up ancient clams from the ocean 90 miles from the nearest beach.

Fifty Million Years Ago, the Arctic Was a Warm Swamp
S47 Ep1 | 2m 7s
Drop yourself into a modern-day swamp, and that's what the ancient Arctic looked like.

How Carbon Dioxide Warms Planet Earth
S47 Ep1 | 2m 32s
Carbon dioxide acts like a heat-trapping blanket, warming our planet.

A Bird's-Eye View of Carbon Emissions
S47 Ep1 | 1m 56s
What if carbon dioxide pollution were solid carbon chunks?

What’s Causing Greenland’s Biggest Glacier to Melt?
S47 Ep1 | 2m 4s
Warming ocean water is eating away at Greenland's glaciers from below.

This Alaska Community is Losing Sea Ice to Climate Change
S47 Ep1 | 4m 47s
See how one small town’s survival is threatened by climate change.

How Earth’s Climate Changed Over the Past 500 Million Years
S47 Ep1 | 3m 25s
Learn more about our planet’s Hothouse and Icehouse climates.

This Canadian Cave Has Been Frozen Since the Last Ice Age
S47 Ep1 | 3m 11s
Explore this spectacular, icy cave.

How Climate Has Shifted Over Millions of Years
S47 Ep1 | 2m 44s
Lake mud from the Russian Arctic tells us that Earth's climate has oscillated in the past.

Dog Tales Preview
S47 Ep2 | 26s
Follow the epic journey of dog domestication and see what science says about dogs’ love.

Do Dogs Love Us or do They Just Want Treats?
S47 Ep2 | 3m 59s
It's time to learn the truth once and for all.

Can Bones Reveal How Dogs Evolved from Wolves?
S47 Ep2 | 5m 12s
Learn more about the evolution of our furry companions.

Cat Tales Preview
S47 Ep3 | 28s
Goddess, demon, house pet? What does science say about the human relationship with cats?

Are Cats More Expressive Than We Think?
S47 Ep3 | 2m 51s
Why it’s so hard to tell what your cat is thinking.

Mysteries of Sleep Preview
S47 Ep4 | 27s
Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?

Can Sleep Quality and Quantity be Boosted Using Sound?
S47 Ep4 | 3m 3s
Scientists use sound to improve sleep.

How Sleep Helps Children Learn and Remember New Words
S47 Ep4 | 4m 22s
See how sleep helps children try to learn made-up words.

What We Know and Don’t Know about the Coronavirus
S47 Ep10 | 5m 55s
What is covid-19 and should you be worried?

Cuba's Cancer Hope Preview
S47 Ep5 | 28s
Can Cuba's innovative lung cancer vaccines give new hope to patients across the world?

An American Cancer Patient Receives Treatment in Cuba
S47 Ep5 | 4m 51s
Cuban lung cancer vaccines offer new hope.

How the Immune System Fights Cancer
S47 Ep5 | 2m 49s
The battle begins as soon as healthy cells mutate into cancer cells.

The Truth About Fat Prologue
S47 Ep6 | 1m 59s
Could it be that body fat has more to do with biological processes than personal choices?

The Truth About Fat Preview
S47 Ep6 | 28s
Could it be that body fat has more to do with biological processes than personal choices?

How Do Sumo Wrestlers Avoid Obesity-Related Diseases?
S47 Ep6 | 2m 51s
It has to do with where the fat is distributed in their bodies.

How the Hormone Leptin Helps Regulate Appetite
S47 Ep6 | 6m 48s
The discovery of leptin transformed our view of fat.

Can Scientists Use RNA to Create a Coronavirus Vaccine?
S47 Ep10 | 5m 28s
The coronavirus has unleashed global havoc. Learn how scientists are hitting back.

When You Lose a Loved One to Coronavirus
S47 Ep10 | 6m 36s
Hear George’s family recount his tragic story.

How Viruses Like the Novel Coronavirus Evolve
S47 Ep10 | 2m 53s
The virus likely is not a new entity on Earth, but it is new in humans.

How Wuhan is Using Digital Gatekeeping to Reopen
S47 Ep10 | 2m 47s
To reopen the city, Wuhan, China is using digital gatekeeping to contact trace. Here’s how

Why Antibody Tests Don’t Yet Reveal Coronavirus Immunity
S47 Ep10 | 5m 59s
Can an antibody blood test tell if you are immune to COVID-19?

How CRISPR Works in Nature
S47 Ep11 | 3m 24s
CRISPR is part of bacteria's natural defense against viruses.

Eagle Power Preview
S47 Ep7 | 28s
Follow eagles from the nest to the skies to see what makes these predators so remarkable.

Decoding COVID-19 Preview
S47 Ep10 | 26s
Scientists race to understand and defeat the coronavirus behind the COVID-19 pandemic.

How Sharp are an Eagle's Eyes?
S47 Ep7 | 2m 45s
Learn why eagles have the sharpest eyesight of any vertebrate animal.

Three Solutions That Can Slow or Stop Climate Change
4m 21s
Preventing, “undoing,” and adapting are 3 ways to avoid the worst climate change impacts.

Cutting our Greenhouse Gas Emissions to Zero
4m 52s
Through “prevention,” humans can significantly cut greenhouse gas emissions.

Can Geoengineering “Undo” Climate Change?
4m 41s
There are ways to reverse some of the damage from our carbon dioxide emissions.

How Communities Can Adapt to Climate Change
3m 59s
For many, the concept of “adapting” to climate change feels like admitting defeat.

Losing a Loved One to Early Onset Alzheimer's
4m 53s
See how Alzheimer's develops and spreads throughout the brain.

The Joys and Challenges of Birding While Black
3m 54s
A need for inclusion in outdoor spaces remains, Christian Cooper explains.

Human Nature Preview
S47 Ep11 | 28s
We can now edit the human genome with a tool called CRISPR. But how far should we go?

Human Nature Sneak Peek
S47 Ep11 | 2m 8s
We can now edit the human genome with a tool called CRISPR. But how far should we go?

Living with Sickle Cell Anemia
S47 Ep11 | 3m 22s
Sickle Cell Anemia is caused by a single change in the DNA sequence.

The "Holy Grail of Yogurt" is CRISPR
S47 Ep11 | 4m 1s
Five years before anybody was talking about CRISPR, Danisco had a breakthrough.

Touching the Asteroid Promo
S47 Ep15 | 27s
Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring it back to Earth.

Secret Mind of Slime Preview
S47 Ep12 | 27s
Meet slime molds: the brainless blobs that can learn, make decisions, and navigate mazes.

Brainless Slime Molds Navigate Mazes and Make Decisions
S47 Ep12 | 2m 46s
Can a slime mold find food placed at the far end of a labyrinth?

The Great Australian Slime Mold Bakeoff
S47 Ep12 | 3m
The purpose of this experiment was to see how Physarum regulates its nutritional needs.

A to Z: The First Alphabet Preview
S47 Ep13 | 27s
The birth of writing and the first alphabet were among the world’s most vital inventions.

How Anosmia Could Affect Doctors’ Coronavirus Screenings
5m 14s
Many people have smell loss with COVID-19.

Aboriginal Elder Sings Ancient Creation Song
S47 Ep13 | 4m 4s
In the Wardaman Creation Story, all the plants and animals of the world were once people.

How Egyptian Hieroglyphs Influenced Modern Alphabets
S47 Ep13 | 3m 56s
Learn why Egyptian hieroglyphs are hiding in modern alphabets—and how to find them.

Christian Cooper's Bird Yearbook Superlatives
5m 11s
What’s the most underrated bird? Most mysterious? Hear Chris Cooper’s opinion.

A to Z: How Writing Changed the World Promo
S47 Ep14 | 26s
The creation of printing, the first information technology, drove empires and revolutions.

The Printing Press Revolutionized the Spread of Information
S47 Ep14 | 2m 36s
Watch how a printing press works.

How Medieval Parchment is Made
S47 Ep14 | 3m 4s
Learn about the preparation and use of parchment paper in medieval Europe.

Nature's Fear Factor Preview
S47 Ep9 | 27s
Can bringing predators—and fear—back into an ecosystem help restore its natural balance?

Meet Gorongosa National Park’s Head Veterinarian
S47 Ep9 | 8m 18s
Hear what it’s like to be a vet for wild animals.

Lions Return to Mozambique's Gorongosa National Park
S47 Ep9 | 6m
Gorongosa National Park was once one of the most species-rich places in Africa.

Did This Asteroid Just Turn into a Comet?
S47 Ep15 | 4m 24s
Everything in the solar system is dynamic—you can watch it evolve in real time.

Asteroids Provide Hints About the "Ingredients" in Planets
S47 Ep15 | 4m 30s
By studying asteroids, researchers can learn about the formation of planets.

Inside OSIRIS-REx’s Mission to Tag Asteroid Bennu
S47 Ep15 | 4m 38s
Learn more about OSIRIS-REx’s mission to an asteroid 200 million miles away.

Can We Cool the Planet? Promo
S47 Ep16 | 28s
Scientists look to geoengineering and other methods to cool the planet.

The Tech Behind Mail-In Voting
6m 20s
Due to the pandemic, millions are voting by mail in the 2020 presidential election.

How Much Coal Do People Burn Each Year?
S47 Ep16 | 2m 13s
See how much CO2 we add to the atmosphere each year.

What is Solar Geoengineering and Why is it Controversial?
S47 Ep16 | 4m 16s
Solar geoengineering is like drawing a curtain over the face of the Earth.

Meet the NASA Scientist Who Uses Lasers to Study Forests
S47 Ep16 | 4m 5s
This researcher shoots lasers at trees in order to measure how much carbon forests store.

The Science of the COVID-19 Treatments Trump Received
6m 37s
In early October 2020, President Trump tested positive for COVID-19.

Saving Notre Dame Preview
S47 Ep8 | 28s
Scientists and engineers fight to save Notre Dame Cathedral after the 2019 fire.

Stabilizing Notre Dame's Famous Buttresses
S47 Ep8 | 3m 3s
If the vaulting collapses, the weight of the buttresses will push in the 100-foot walls.

Saving Notre Dame's Stained Glass Masterpieces
S47 Ep8 | 3m 2s
Could the cathedral's beautiful stained glass collection survive the 2019 fire intact?

The Biggest Space News Stories of 2020
5m 27s
Discover three of the greatest space developments of the year and what 2021 may bring.

Beyond the Elements: Reactions Preview
S47 Ep17 | 30s
Discover the fascinating chemistry that makes our world and everything in it—including us.

Beyond the Elements: Indestructible Preview
S47 Ep18 | 30s
Discover the fascinating chemistry that makes our world and everything in it—including us.

Plastics: Durable, Diverse, and Indestructible
S47 Ep18 | 7m 52s
Processing can turn the same plastic into very different products.

Beyond the Elements: Life Preview
S47 Ep19 | 30s
Discover the fascinating chemistry that makes our world and everything in it—including us.

Einstein's Quantum Riddle Preview
S46 Ep2 | 27s
Join scientists as they grab light from across the universe to prove quantum entanglement.

Pluto and Beyond Preview
S46 Ep1 | 26s
The New Horizons spacecraft zooms toward an object 4 billion miles from Earth.

New Horizons Makes Historic Flyby on New Year's Day
S46 Ep1 | 2m 9s
The New Horizons spacecraft made history by conducting the farthest ever flyby.

Days Before Flyby, Ultima Thule Still Mysterious
S46 Ep1 | 1m 45s
NASA's New Horizons spacecraft is about to visit the most distant object ever explored.

Ultima Thule Comes Into Focus as New Images Reveal Secrets
S46 Ep1 | 1m 13s
NASA scientists received the most detailed images from its spacecraft, New Horizons.

Kīlauea: Hawaiʻi on Fire Preview
S46 Ep3 | 25s
Scientists journey to Kīlauea volcano to investigate the eruptions that shook Hawaiʻi.

Decoding the Great Pyramid Preview
S46 Ep4 | 28s
New archeological evidence shows the stunning engineering of the Great Pyramid of Giza.

Why Kicking a Field Goal is Harder Than it Looks
3m 28s
Kicking a field goal is tough. But why? (Hint: It's physics.)

Ultima Thule is Surprisingly Flat
S46 Ep1 | 1m 38s
This discovery could have a big effect on how scientists think about planet formation.

Rise of the Rockets Preview
S46 Ep5 | 29s
New technologies are promising a new renaissance in space travel.

How Do You Get a Rocket to Land Back on Earth?
S46 Ep5 | 2m 23s
There's a reason why so few rockets are designed to come back to their launch sites.

The Next Pompeii Preview
S46 Ep6 | 29s
In the shadow of Vesuvius and Pompeii, a lesser-known volcano puts Naples at risk.

Volcanologists Descend into Mt Vesuvius' Crater
S46 Ep6 | 2m 58s
Gas samples from Mt. Vesuvius can reveal how close magma is to the volcano's surface.

What is Coral Bleaching?
2m 29s
It changes the dynamic of the entire reefscape, and can be detrimental to corals.

Clues from a Giant Volcanic Eruption Exist Beneath Naples
S46 Ep6 | 2m 59s
Dwelling beneath Naples, is Campi Flegrei—a volcano capable of a very large eruption.

Can Super Corals Save Reefs?
3m 29s
Scientists are trying to help reefs around the world the world by identifying super corals

Did Climate Change Cause Hurricane Harvey?
2m 32s
Climate models can be used to analyze rainfall, heatwaves, and even coral bleaching events

Climate Change Flooding: A Threat to National Security?
4m 1s
Sea level rise and heavy rains pose logistical challenges to Norfolk, Virginia's Navy.

Why Hurricane Florence Caused So Much Flooding
3m 2s
Warming air and sea surface temperatures are making storms wetter and more intense.

The World Wide Web Celebrates its 30th Birthday
2m 39s
Without it, you wouldn't be able to watch this video.

What Went Wrong with the Boeing 737 Max 8?
3m 22s
Experts weigh in on what may have happened to the Ethiopian flight 302.

This AI Can Help Park Rangers Identify Poachers
3m 27s
A system of small cameras can help park rangers identify possible poachers.

Grandfather of Climate Science and "The Big Experiment"
2m
A pioneer of climate science, explains why he wishes he could have lived another 50 years.

Vaping Cost One Teen His Health and Dreams
3m 59s
Nicotine addiction came with high price for one teen, and he’s not alone.

Deepfake Videos Are Getting Terrifyingly Real
3m 36s
Artificially intelligent face swap videos are more sophisticated and accessible than ever.

How the Magnus Force Curves Soccer and Baseballs
3m 26s
Baseball vs. Soccer: Which sport has the best curves?

Fossil Discovery Could Offer Glimpse into Day the Dinos Died
2m 51s
Fossilized fish appear to preserve the fallout of the asteroid that killed the dinosaurs.

Saving the Dead Sea Preview
S46 Ep7 | 28s
Can a daring water engineering project revive the Dead Sea without altering its chemistry?

To Save Water, Women in Jordan Learn to Plumb
S46 Ep7 | 1m 4s
Can women tackle the country's water shortage by learning a new trade?

Scientists Use Drones to Track Dead Sea Sinkholes
S46 Ep7 | 2m 48s
How do sinkholes come to be, and how do researchers study them?

Inside the Megafire Preview
S46 Ep8 | 28s
Scientists investigate the deadly megafires that swept through California in 2018.

As Megafires Have Become More Common, So Have Fire Tornadoes
S46 Ep8 | 2m 32s
What causes flames to start spinning?

Why Fires Move Faster Up a Hill than Down
S46 Ep8 | 2m 33s
U.S.D.A. scientists conduct an experiment to discover why fires move uphill.

Camp Fire Survivor Sees Destroyed Home for the First Time
S46 Ep8 | 1m 54s
A resident returns home and witnesses the Camp Fire's destruction firsthand.

Residents Flee Paradise During the Camp Fire
S46 Ep8 | 1m 34s
As the Camp Fire scorches a community in California, residents leave by car and on foot.

How Did the Camp Fire Start and Spread?
S46 Ep8 | 1m 46s
From the start, California’s deadliest fire had the potential for disaster.

First Horse Warriors Preview
S46 Ep9 | 28s
The advent of horse riding changed the course of human history and our genetic makeup.

Milking a Horse is Harder than You Think
S46 Ep9 | 38s
To milk a horse, one must trick a mother horse—and trick her well.

Lost Viking Army Preview
S46 Ep10 | 28s
Bioarchaeologists investigate a 9th-century mass grave thought to hold a lost Viking army.

Why Did These Vikings' Bones Appear Older Than They Are?
S46 Ep10 | 2m 18s
Hint: Carbon in the ocean is different than carbon on land.

Who Was This High-Status Viking Warrior?
S46 Ep10 | 1m 55s
DNA evidence reveals surprising truth about the identity of a revered 9th-century Viking.

This Cute Robot Uses Sophisticated AI to Help Teach Kids
4m 18s
Tega is a robot that uses artificial intelligence to read and respond to kid's emotions.

The 170-Year Search for a Planet Beyond Neptune
2m 29s
There may be a ninth planet at the edge of our solar system — it’s not Pluto and it’s not

The Evidence for Planet Nine’s Existence
3m 3s
Why do some astronomers think there’s a massive planet on the edge of our solar system?

Inside the Search for Planet Nine
3m 14s
The Subaru Telescope at the peak of Hawai`i’s Mauna Kea is on the hunt for Planet Nine.

Six Ways Quantum Computers Could Change the World
3m 50s
See why experts are saying it's the dawn of a new Information Age.

Astronomers Photograph 2 Newborn Planets for the First Time
2m 41s
Researchers photograph two newborn planets for the first time.

Back to the Moon Preview
S46 Ep11 | 28s
Discover why scientists and entrepreneurs alike have their sights set on the Moon again.

How Did the Moon Come to Be?
S46 Ep11 | 1m 1s
Scientists have several theories for how Earth's Moon formed.

Scientists Launch Rocket into the Moon to Find Water
S46 Ep11 | 4m 35s
Researchers hope to observe lunar material ejected from an impact.

The Planets Series Teaser
S46 Ep12 | 1m
The life of our solar system told in five dramatic stories spanning billions of years.

The Planets Series Trailer
S46 Ep12 | 3m 9s
The life of our solar system told in five dramatic stories spanning billions of years.

The Planets: Inner Worlds Preview
S46 Ep12 | 26s
The rocky planets have similar origins, but only 1 supports life. Was it always this way?

The Planets: Mars Preview
S46 Ep13 | 28s
Before it was a dry planet, Mars was a wet world that may have hosted life.

Five Facts About the Planet Closest to Our Sun
S46 Ep12 | 1m 9s
What makes Venus's next door neighbor unique?

Five Facts About Hot, Volcanic Venus
S46 Ep12 | 58s
Our next door neighbor is most like Earth in terms of size and mass.

Inside Look: "The Planets"
S46 Ep12 | 1m 30s
PBS journeys through the solar system to explore NOVA’s “The Planets.”

Mars, the Red Planet, Was Once Blue
S46 Ep13 | 1m 25s
Mars once had rains, rivers, and in the northern hemisphere, a vast sea.

Behind the Scenes: The Making of "The Planets"
S46 Ep12 | 4m 26s
See the work that went into creating some of the animations in "The Planets."

The Planets: Jupiter Preview
S46 Ep14 | 27s
Jupiter's massive gravitational force has made it a wrecking ball and a protector of Earth

Jupiter, the First Planet to Form in our Solar System
S46 Ep14 | 1m 42s
Jupiter formed long before most other planets around it did.

Five Facts About the Biggest Planet in our Solar System
S46 Ep14 | 1m 21s
Jupiter is more than the biggest planet in our solar system—it's also the oldest.

The Planets: Saturn Preview
S46 Ep15 | 27s
NASA's Cassini reveals the mysteries of Saturn's rings—and new hope for life on a moon.

Five Facts About the Ringed Gas Giant Planet
S46 Ep15 | 1m 9s
Learn more about Saturn, its rings, and moons.

The Cassini Spacecraft's final moments
S46 Ep15 | 2m 16s
Cassini plunges into Saturn, marking the end of its 13-year mission.

The Planets: Ice Worlds Preview
S46 Ep16 | 27s
Beyond icy worlds of Uranus and Neptune, Pluto dazzles with its mysterious ocean.

Five Facts About the Tilted Planet
S46 Ep16 | 1m 14s
Uranus is more than just the tilted planet in our solar system.

Five Facts About the Farthest Planet in our Solar System
S46 Ep16 | 1m 12s
Getting to know Neptune, the outer-most planet.

Five Facts About the Largest Kuiper Belt Object
S46 Ep16 | 1m 10s
Learn more about Pluto and its moon, Charon.

How Voyager discovered that Neptune is oddly warm and stormy
S46 Ep16 | 1m 58s
Neptune has swirling clouds and strong winds. Can scientists figure out why?

Three Tasks Driverless Cars Need to Learn
S46 Ep19 | 2m 44s
There’s a lot going on ‘under the hood’ of a self-driving car.

Why Bridges Collapse Preview
S46 Ep18 | 28s
Can new engineering techniques help prevent deadly bridge collapses?

Survivors Recount Bridge Collapse in Genoa, Italy
S46 Ep18 | 2m 34s
Hear from two survivors of a tragic bridge collapse.

How West Virginia's Silver Bridge Fell in 1967
S46 Ep18 | 3m 15s
What is a single-point bridge failure?

Look Who's Driving Preview
S46 Ep19 | 28s
As self-driving cars take to the streets, investigate how they work, and if they are safe.

Testing Self-Driving Cars in the Real World
S46 Ep19 | 3m 46s
Driverless cars are being tested in private and public spaces.

How Fossilized Plants Tell Us About the Evolution of Animals
S46 Ep17 | 1m 34s
Plants can help us understand how life rebounds after a mass extinction.

Rise of the Mammals Preview
S46 Ep17 | 26s
Amazing fossils reveal how mammals took over after an asteroid wiped out the dinosaurs.

Mammal Fossils Fill in Missing Piece of the Timeline of Life
S46 Ep17 | 3m 35s
This trove of mammal fossils paints a timeline of life after the dinosaurs died.

Paleontologist Makes "Game-Changing" Fossil Discovery
S46 Ep17 | 1m 34s
The Denver Basin preserves a pristine record of ecosystem recovery.

Paleontologists Discover New Mammal Fossils Hidden in Rocks
S46 Ep17 | 5m 44s
Stunning new mammal fossils were hiding in plain sight.

Dead Sea Scroll Detectives Preview
S46 Ep20 | 28s
New technologies unravel the Dead Sea Scrolls’ mysteries and uncover million-dollar fakes.

Experts Investigate Dead Sea Scroll Forgeries
S46 Ep20 | 3m 16s
Not all Dead Sea scroll fragments are what they claim to be.

Scientists Use NASA Tech to Decode Damaged Scrolls
S46 Ep20 | 1m 59s
Watch how damaged Dead Sea Scrolls become legible once again.

Decoding da Vinci Preview
S46 Ep21 | 28s
Discover the science behind Leonardo da Vinci's masterpieces—and Mona Lisa's iconic smile.

How did Leonardo da Vinci Paint the "Mona Lisa"?
S46 Ep21 | 1m 45s
Learn what inspired da Vinci’s "Mona Lisa."

How Leonardo da Vinci Used Anatomy to Inform his Paintings
S46 Ep21 | 4m 59s
Do the Renaissance master’s drawings stand the test of time?

Artificial Intelligence is Helping Get the Lead Out of Flint
6m 32s
An algorithm helps find buried lead, but can residents trust it?

The Violence Paradox Preview
S46 Ep22 | 28s
Is violence actually declining? If so, why? And can we build a more peaceful future?

Are Babies Capable of Making Moral Judgements?
S46 Ep22 | 3m 36s
To test this, a psychologist puts on a two-act puppet show for infants.

Taking Orders to Be Violent Might be Easier Than You Think
S46 Ep22 | 5m 17s
Two researchers at a Polish University recreated the Milgram Shock Experiment.

Animal Espionage Preview
S46 Ep23 | 26s
Camera technology is revolutionizing the study of animals—without them even noticing.

Using Drones to Solve 170-Year Bowhead Whale Mystery
S46 Ep23 | 3m
Scientists use drones to spy on bowhead whales.

This Little Armadillo Was a Big Ambassador for His Species
S46 Ep23 | 3m 51s
Learn about this baby giant armadillo.

Black Hole Apocalypse Trailer
S45 Ep1 | 3m
Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.

Black Hole Apocalypse Preview
S45 Ep1 | 30s
Take a mind-blowing voyage to the most powerful and mysterious objects in the universe.

Four Types of Black Holes
S45 Ep1 | 2m
Discover the FOUR types of black holes that exist in the cosmos.

Black Hole Hunter: Janna Levin
S45 Ep1 | 4m 15s
As a kid, Janna Levin loved cosmology—now, she’s an award-winning author and host.

Black Hole Hunter: Andrea Ghez
S45 Ep1 | 3m 39s
Andrea Ghez asks: Is there a supermassive black hole at the center of our galaxy?

Black Hole Hunter: Priyamvda Natarajan
S45 Ep1 | 3m 55s
Theoretical astrophysicist Priya Natarajan maps the cosmos.

Black Hole Hunter: Chung-Pei Ma
S45 Ep1 | 4m 22s
Chung-Pei Ma is both a gifted violinist and one of the world’s foremost black hole hunters

Black Hole Star Cake
S45 Ep1 | 5m 10s
NOVA has teamed up with Cook's Illustrated to cook up a recipe for stars and black holes.

What's Inside a Black Hole?
S45 Ep1 | 3m 36s
Here are three mind-blowing ideas for what may be inside a black hole.

The Impossible Flight Preview
S45 Ep3 | 30s
For the first time, two intrepid pilots fly a solar-powered airplane around the world.

First Face of America Preview
S45 Ep4 | 30s
Discover remains of a 13,000 year-old teenager in an underwater cave in Mexico.

The Impossible Is Possible
S45 Ep3 | 52s
Pilot André Borschberg reflects on his experience achieving what seemed impossible.

Searching for a Skull
S45 Ep4 | 3m 30s
Watch as a team of divers attempts to retrieve an ancient skull.

Inside A Solar Plane Flight
S45 Ep3 | 57s
Pilot André Borschberg describes how it feels to fly in a plane entirely powered by the su

Great Escape at Dunkirk Preview
S45 Ep5 | 30s
How courage and ingenuity saved Allied troops during the epic Dunkirk operation in 1940.

Prediction by the Numbers Prologue
S45 Ep6 | 1m 12s
Discover why some predictions succeed and others fail as experts forecast the future.

What is a P-Value?
S45 Ep6 | 4m 12s
Science's most important number has its origins in a British experiment involving tea.

Dunkirk: Hilter’s Secret Weapon
S45 Ep5 | 4m 14s
Churchill launches the largest military evacuation in military history.

The Wisdom of the Crowds
S45 Ep6 | 3m 38s
Crowds hold a predictive power that can have startling accuracy.

Decoding the Weather Machine Trailer
S45 Ep7 | 1m 49s
Discover how Earth’s intricate climate system is changing.

Decoding the Weather Machine Prologue
S45 Ep7 | 2m 4s
Discover how Earth’s intricate climate system is changing.

Climate Change's Best Hope
S45 Ep7 | 1m 17s
The one thing Katherine Hayhoe wishes we did about climate change.

Understanding the Climate Clock
S45 Ep7 | 5m 6s
The climate has changed on a schedule for millennia. Have humans broken the climate clock?

Why There's No Climate Hoax
S45 Ep7 | 1m 20s
Ecologist Stephen Pacala says a climate change conspiracy is impossible.

Faith and Climate Change
S45 Ep7 | 2m 2s
Faith and climate science are not at odds, says evangelical meteorologist Paul Douglas.

NOVA Wonders Series Preview
S45 Ep101 | 1m 21s
A 6-part series exploring the biggest questions on the frontiers of science.

What's Living in You? Preview
S45 Ep102 | 28s
Discover how a world of microbes living in and on you can make you sick.

Are We Alone? Preview
S45 Ep103 | 28s
Hunt for clues in the universes to answer one of humanity’s biggest questions.

The Law all Languages Obey
S45 Ep101 | 2m 36s
Animal and human forms of communication may be much closer than we previously thought.

Can We Make Life? Preview
S45 Ep105 | 28s
A revolution in gene editing enables scientists to create and edit DNA like never before.

The Secrets of Spider Seduction
S45 Ep101 | 2m 56s
Can scientists stomach hours of spider sex in order to understand their language?

Can We Build a Brain? Preview
S45 Ep104 | 28s
How does today’s artificial intelligence actually work—and is it truly intelligent?

Profile: Erich Jarvis
S45 Ep101 | 5m 37s
Meet Erich Jarvis, a scientist studying vocal-learning in mice and songbirds.

Six Microbes Living in You
S45 Ep102 | 3m 43s
Microbes colonize our skin, guts, and bodies—but we wouldn’t be ourselves without them.

What's the Universe Made Of? Preview
S45 Ep106 | 28s
Peer into the universe’s deep unknowns to explore the mysteries of dark matter and energy.

Profile: Jack Gilbert
S45 Ep102 | 6m 37s
Jack Gilbert studies the effects of the microbiome on the human body and mind.

The Mystery of Tabby’s Star
S45 Ep103 | 3m 18s
Tabby’s star flickers erratically and no one knows why—could it be an alien megastructure?

How does CRISPR work?
S45 Ep105 | 1m 36s
CRISPR makes gene editing faster, cheaper, and easier than ever before. Here's how.

Can We Use Pollution to Find Aliens?
S45 Ep103 | 2m 16s
The hunt for pollution in other planets’ atmospheres may determine whether we are alone.

What is a Neural Net?
S45 Ep104 | 2m 14s
Neural nets have revolutionized the AI industry for years. But what exactly are they?

How Scientists Discovered Dark Matter
S45 Ep106 | 2m 37s
What kind of clues led to the discovery of Dark Matter and its place in the universe?

Bringing Back Woolly Mammoths
S45 Ep105 | 3m 20s
Mixing mammoth and elephant genes could be the key to saving the Arctic.

Profile: Jason Kalirai
S45 Ep103 | 6m 39s
Astrophysicist Jason Kalirai observes stars and searches for habitable planets.

Can Cat Poop Make You Crazy?
S45 Ep102 | 3m 23s
Toxoplasma, a parasite found in cat waste, takes over the brain.

How the Universe Will End
S45 Ep106 | 1m 29s
Dark energy is spreading the universe apart—what’s it mean for astronomy in the future?

Physics Is a Never-Ending Puzzle
S45 Ep106 | 1m 8s
Physics rarely yields finite answers, but that doesn’t deter scientists.

Can Gene Therapy Cure Cancer?
S45 Ep105 | 3m 23s
CAR-T Gene Therapy is a new treatment for some forms of Leukemia and Non-Hodgkin Lymphoma.

Profile: Priya Natarajan
S45 Ep106 | 5m 38s
Astrophysicist Priya Natarajan has loved atlases and maps since she was a little girl.

Profile: Rana el Kaliouby
S45 Ep104 | 4m 46s
Rana el Kaliouby wants to humanize technology with artificial emotional intelligence.

Profile: Kevin Esvelt
S45 Ep105 | 8m 22s
Kevin Esvelt's on a mission to eradicate Lyme disease on Nantucket and Martha’s Vineyard.

Using Artificial Intelligence to Diagnose Melanoma
S45 Ep104 | 2m 9s
A deep learning system has learned to accurately identify skin cancers in photographs.

Net Neutrality’s End and Science
3m 3s
Depending on your perspective, the repeal of net neutrality could help or hurt science.

Tale of Two Volcanoes
2m 38s
Hawaii’s Kilauea and Guatemala’s Fuego volcanic eruptions have been remarkably destructive

Rise of the Superstorms Preview
S45 Ep8 | 28s
Witness the devastation wrought by Hurricanes Harvey, Irma, and Maria in 2017.

Hurricane Harvey Destroys Home
S45 Ep8 | 3m 18s
This Lumberton, Texas resident witnessed the destruction of Hurricane Harvey.

The Town Hurricane Harvey Ruined
S45 Ep8 | 1m 24s
Rosharon, Texas is a reminder of how a hurricane can cripple a community.

Boating in Toxic Floodwater
S45 Ep8 | 2m 32s
Two Texas residents set out on a motorboat to join the Hurricane Harvey rescue effort.

Aftermath of Hurricane Maria
S45 Ep8 | 1m 18s
Hurricane Maria plowed into Puerto Rico and shattered hundreds of thousands of homes.

Separation and Children’s Brains
3m 19s
Even brief separations can impair the brain development of a young child or infant.

Is Grilled Food Bad for You?
4m 21s
Explore the science of grilling and how it could affect your health.

Liquid Water Found on Mars
2m 18s
Scientists found a large body of liquid water beneath the southern ice caps of Mars.

How to Slow Down Time
3m 48s
In different but similar ways, both your brain and the laws of physics can slow down time.

Hawaii’s Kilauea Volcano Erupts
1m 14s
New fissures are devastating neighborhoods on Hawaii’s Big Island.

Transplanting Hope Preview
S45 Ep9 | 26s
Witness organ transplants as they unfold, and meet patients awaiting lifesaving donations.

Journey of a Heart Transplant
S45 Ep9 | 6m 16s
Born with a damaged heart, two-week-old Harlow needs a transplant.

Could Cadaver Organs Save Your Life?
S45 Ep9 | 3m 27s
Custom-built lungs, livers, kidneys and hearts could someday save thousands of lives.

Volcano on Fire Preview
S45 Ep10 | 25s
Climb into the crater of Nyiragongo, a seething and active African volcano.

Volcano on the Brink Preview
S45 Ep11 | 25s
Explore Africa’s sleeping giant—Nyamuragira, one of the world’s most dangerous volcanoes.

Operation Bridge Rescue Preview
S45 Ep16 | 24s
Follow engineers and woodworkers as they rebuild and transport an iconic American bridge.

Macaque Monkeys Adapt After Hurricane Maria
4m 44s
Researchers investigate whether 1800 macaques may have been changed by Hurricane Maria.

Distributed Energy in Puerto Rico
7m 15s
Puerto Ricans are innovating to find new energy solutions after Hurricane Maria.

Moving a Wooden Covered Bridge
S45 Ep16 | 3m 20s
A team scrambles to move a bridge across a rapidly rising creek.

Volcanic Rock Helps Predict Speed of Future Lava Flow
S45 Ep10 | 1m 33s
If a volcano’s lava is low in silica, the lava will move more quickly during an eruption.

Addiction Prologue
S45 Ep12 | 1m 54s
Discover how opioid addiction affects the brain and how treatments are saving lives.

What is the Coriolis Effect?
4m 18s
The spinning of the Earth means we don't always see straight paths as straight.

Healing After Hurricane Maria
5m 33s
Antonio Paris translates how to survive on other planets into surviving after Maria.

The Arecibo Observatory
3m 58s
After Hurricane Maria, the Arecibo Observatory staff worked to rebuild its facility.

Former Opioid User Discusses Withdrawal and Recovery
S45 Ep12 | 2m 30s
Ben Francis became addicted to opioid painkillers in high school after a soccer injury.

The Science of Opioid Addiction and Treatment
S45 Ep12 | 3m 8s
How opioids mimic the body's natural pain relievers and sometimes induce euphoria.

Canada’s Bold Steps to Reduce Opioid Overdoses
S45 Ep12 | 6m 3s
Vancouver, Canada’s supervised injection sites offer people a safer place to use.

Why Addiction Stigma Stops Patients from Seeking Treatment
S45 Ep12 | 1m 57s
Over 20 million Americans struggle with addiction—and social stigma is partially to blame.

How a Teenager's Opioid Prescription Led to Dependence
S45 Ep12 | 3m 57s
Severe muscle cramps landed this teen in the hospital, where she was prescribed opioids.

Helping Children Born Dependent on Opioids
S45 Ep12 | 3m 44s
A therapy program enables children born with neonatal abstinence syndrome to build skills.

A Coal Miner's Story of Addiction and Recovery
S45 Ep12 | 3m 36s
After a mining accident, a West Virginia resident began struggling with addiction.

Flying Supersonic Preview
S45 Ep13 | 26s
Discover the feats of engineering that made the Concorde the first supersonic airliner.

World's Fastest Animal Preview
S45 Ep17 | 29s
See the world through the eyes of nature’s fastest animal: the peregrine falcon.

Finding a Lost WWII Tuskegee Airman
S45 Ep15 | 4m 28s
Can DNA analysis ID a Tuskegee Airman missing since WWII?

Identifying Lost Crew with Forensics and DNA Analysis
S45 Ep15 | 3m 10s
Can a team of forensic archaeologist identify three WWII airmen that disappeared?

Modern Politics Activates the Brain's Ancient Wiring
3m 9s
How does your brain process political ideas?

Apollo's Daring Mission Sneak Peek
S45 Ep18 | 1m 17s
Apollo astronauts and engineers tell the story of the first manned mission to the moon.

How Peregrine Falcons Thrive in Cities
S45 Ep17 | 2m 56s
This family of peregrine falcons is taking advantage of urban Chicago's resources.

This Drone Mimics Bird Flight
S45 Ep17 | 2m 59s
With an onboard camera, "the prey drone" excels at filming the peregrine falcon.

Winter Is Coming… And So Is Seasonal Depression
3m 4s
As the days shorten, our internal clocks have to recalibrate. But that's hard for some.

Turn to Science for Great Thanksgiving Stuffing
3m 24s
Learn the secret to making delicious stuffing that's not gummy.

Fireproofing Our Future through Better Design
3m 37s
Before a wildfire ever starts, there are ways to make homes and buildings safer.

Five Apollo 8 Technological Breakthroughs
S45 Ep18 | 2m 32s
The Apollo 8 spacecraft—and its mission—marked a revolution in spaceflight.

Capturing "Earthrise" from Apollo 8
S45 Ep18 | 1m 45s
Many consider “Earthrise,” to be one of the most important photos of the 20th century.

How NASA’s Apollo 8 Left Earth’s Orbit
S45 Ep18 | 2m 24s
Apollo 8 was the first in the world to head to the moon using trans-lunar injection.

Jupiter's Latest Moon Discovery
1m 20s
As if 67 moons weren’t enough, scientists discovered 12 new ones orbiting the planet.

Search for the Super Battery Preview
S44 Ep3 | 30s
Explore the hidden world of energy storage and how it holds the keys to a greener future.

Supercharged Supercapacitors
S44 Ep3 | 3m 35s
A new way of making supercapacitors may help them store more energy than normal batteries.

Our Energy Future, in Toasters
S44 Ep3 | 1m 53s
Every country wants to consume as much energy as the US. Where will that energy come from?

The Battery That Won't Explode
S44 Ep3 | 2m 6s
Mike Zimmerman’s battery endures abuse at the hands of David Pogue.

Ultimate Cruise Ship Preview
S44 Ep4 | 30s
Join pioneering shipbuilders as they embark on a feat of maritime engineering.

The Origami Revolution Preview
S44 Ep5 | 30s
Engineers are using origami to design drugs, micro-robots, and future space missions.

Our Origami World
S44 Ep5 | 1m 54s
Biology and the physical world around us appear to be governed by origami-like patterns.

Why Trains Crash Preview
S44 Ep6 | 30s
Can new crash prevention technology help us avoid deadly train accidents?

Nuestro Mundo de Origami
S44 Ep5 | 1m 54s
La biologia y el mundo físico al nuestro alrededor parecen estar gobernados por origami.

Building Chernobyl's MegaTomb Preview
S44 Ep8 | 30s
Engineers race to build a massive dome to contain the crumbling remains of the reactor.

Holocaust Escape Tunnel Preview 2
S44 Ep7 | 30s
At ground zero for the final solution, scientists uncover a story of hope and bravery.

Holocaust Survival Tale: Hana
S44 Ep7 | 7m 51s
Hana Amir describes her father escaping the Holocaust through a tunnel he helped to dig.

Holocaust Survival Tale: Abe
S44 Ep7 | 7m 23s
In Lithuania during WWII, Abe Gol’s father led Jewish prisoners in a tunnel escape.

Holocaust Survival Tale: Esia
S44 Ep7 | 6m 21s
Esia Friedman tells the story of how her family made it through the Holocaust alive.

Holocaust Survival Tale: Haim
S44 Ep7 | 6m 35s
Zalman Matzkin narrowly escaped the Holocaust in Lithuania, managing to build a new life.

Saving Jewish History
S44 Ep7 | 5m 21s
Jewish scholars in Lithuania risked death in WWII to save their literature from the Nazis.

Holocaust Escape Tunnel Q&A with Historians and Filmmakers
S44 Ep7 | 2m
At ground zero for the final solution, scientists uncover a story of hope and bravery.

Holocaust Escape Tunnel Prologue
S44 Ep7 | 2m 3s
In a forest in Lithuania, a team of scientists searches for traces of a vanished people.

Holocaust Survival Tale: Sam
S44 Ep7 | 8m 20s
During WWII, Nazis forced Samuel Bak and his family out of their home in Vilna, Lithuania.

Poisoned Water Preview
S44 Ep10 | 30s
What exactly went wrong in Flint—and what does it mean for the rest of the country?

Poisoned Water Q&A with Scientists and Filmmakers
S44 Ep10 | 2m
What exactly went wrong in Flint—and what does it mean for the rest of the country?

Chinese Chariot Revealed Preview
S44 Ep9 | 30s
A team of experts rebuild an ancient battle chariot to help uncover its design secrets.

This Woman Helped Save Flint
S44 Ep10 | 2m 29s
LeeAnne Walters, of Flint, Michigan, helps save the city from a lead water crisis.

What Does Lead Do to the Brain?
S44 Ep10 | 5m 22s
How does lead poisoning damage the brain—and can we stop it?

Flint: A Timeline
S44 Ep10 | 1m 56s
Follow the emergency in Flint from the switch in water supply to today’s health crisis.

Scandal's Joe Morton on Flint
S44 Ep10 | 4m 10s
Actor Joe Morton, narrator of “Poisoned Water,” discusses the Flint water crisis.

How to Find an Exoplanet
3m 43s
Want to find another world beyond our solar system? Here are the 5 ways you can do it.

Best Way to Learn to Ride a Bike
2m 16s
Two centuries of bikes, and we’re still debating the best way to learn to ride one.

Eclipse Over America Preview
S44 Ep11 | 30s
The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.

Eclipse Over America Trailer
S44 Ep11 | 1m 37s
The country’s first solar eclipse in 99 years will cast a light on the Sun’s secrets.

Watch an Eclipse Safely
S44 Ep11 | 3m 19s
With the US eclipse just over a week away, here’s how you can watch it safely.

How an Eclipse Proved Einstein Right
S44 Ep11 | 1m 58s
The total solar eclipse of 1919 led Albert Einstein down the path toward stardom.

7 Stellar Facts about Solar Eclipses
S44 Ep11 | 2m 32s
Discover surprising facts about solar eclipses.

Death Dive to Saturn Preview
S44 Ep12 | 30s
Follow Cassini's final days as it skims the cloud tops before plunging into the planet.

Amazing Discoveries from Cassini
S44 Ep12 | 2m 11s
Relive Cassini's greatest hits from its 13 years studying Saturn.

Cassini's Search For Life
S44 Ep12 | 2m 27s
Is there life beyond Earth? The solar system's ocean worlds might be the most promising pl

Saying Goodbye to Cassini
S44 Ep12 | 2m 31s
Cassini, a brave explorer that was dispatched to study a distant ringed world, has died.

Ghosts of Stonehenge Preview
S44 Ep14 | 30s
A decade of archaeological research uncovers provocative new clues about Stonehenge.

Why Did Houston Flood?
3m 19s
Hurricane Harvey broke continental U.S. records. Here's how cities can be better prepared.

Secrets of the Shining Knight Preview
S44 Ep13 | 30s
Discover the world of medieval knights and see how their armor was made.

Why Worry About ICBMs?
2m 59s
What are intercontinental ballistic missiles (ICBMs), and why are they hard to shoot down?

Secrets of the Forbidden City Preview
S44 Ep15 | 30s
How has China’s magnificent Forbidden City withstood centuries of earthquakes?

Forbidden City Facts
S44 Ep15 | 1m 34s
Discover how Beijing’s Forbidden City, the largest palace complex in the world.

Killer Volcanoes Preview
S44 Ep16 | 30s
Scientists hunt for a mega-eruption that plunged medieval Earth into a deep freeze.

Ancient Volcanic Activity in Ice
S44 Ep16 | 1m 49s
Researchers try to prove the existence of a 13th century volcanic eruption using ice.

Can Math Detect Gerrymandering?
3m 5s
The Supreme Court is hearing a gerrymandering case. Mathematicians are watching closely.

Killer Hurricanes Preview
S44 Ep17 | 30s
Experts reconstruct the Great Hurricane of 1780 to help predict the risk of future storms.

What Makes a Hurricane?
S44 Ep17 | 1m 20s
Hurricanes bring wind, rain, and destruction—but how do they form?

Killer Floods Preview
S44 Ep18 | 30s
Scientists uncover geologic evidence of epic floods that tore through ancient landscapes.

First Time Britain Left Europe
S44 Ep18 | 3m 15s
Geologists think these iconic chalk cliffs hold an extraordinary secret.

New Kind of Astrophysics is Born
2m
Scientists saw and “heard” a dramatic cosmic explosion simultaneously for the first time.

Extreme Animal Weapons Preview
S44 Ep19 | 30s
NOVA uncovers the secrets of nature’s battleground—claws, horns, fangs and all.

Darwin's Beetles Spar Off
S44 Ep19 | 1m 55s
Beetles make up the largest group of insects on Earth. Why do so few have massive pincers?

Why Fiddler Crabs Have Giant Claws
S44 Ep19 | 3m 32s
Fiddler crabs' large claws look intimidating, but is deadly combat their main purpose?

Why Do We Like Being Scared?
3m 21s
If a neuroscientist designed a haunted house, would you dare to enter?

Will Robots Become Conscious?
6m 13s
What makes a brain or machine conscious? This theory is beginning to provide some answers.

What's Inside the Great Pyramid?
1m 45s
Cosmic particles reveal a previously hidden void in the Great Pyramid of Khufu in Egypt.

Climate Action Without the Feds?
2m 47s
Can states, cities, and companies fulfill US obligations to the Paris Accord on their own?

Day the Dinosaurs Died Preview
S44 Ep21 | 30s
Experts drill into the impact crater of an asteroid that created a worldwide cataclysm.

How Much Does a Thought Weigh?
3m 57s
Even in your mind, energy goes with it—bottle up that energy and it has mass.

Bird Brain Preview
S44 Ep20 | 30s
Watch as birds solve puzzles and challenge our basic notions of intelligence.

Do Birds Remember Faces?
S44 Ep20 | 1m 49s
Crows can remember the face of their captors—even after generations.

How to Prevent Train Crashes
1m 20s
Could a safety technology have prevented a train crash in Washington that killed three?

How Fast Does Santa Fly?
3m 10s
To make their delivery schedule, how quickly must Santa and his reindeer travel the world?

What is CRISPR gene editing?
1m 24s
Scientists have a new tool to edit genes in human cells to repair mutations. What is it?

Secret Tunnel Warfare Preview
S43 Ep1 | 30s
In WW1 Allied troops tunneled under enemy lines to create the biggest explosion ever seen.

Iceman Reborn Preview
S43 Ep5 | 30s
Watch as Otzi, a 5000-year-old mummy, is brought to life and preserved with 3D modeling.

Creatures of Light Preview
S43 Ep9 | 30s
Deep in the ocean, animals that flash, sparkle, and glow use light to survive in the dark.

Life's Rocky Start Preview
S43 Ep2 | 30s
What is the secret link between rocks and minerals, and every living thing on Earth?

The Minerals Behind Modern Life
S43 Ep2 | 2m 4s
Minerals are essential in making everything from skyscrapers tall, to mobile phones small.

Mystery Beneath the Ice Preview
S43 Ep3 | 30s
What’s behind the death of a tiny creature with an outsized role in the Antarctic?

Himalayan Megaquake Preview
S43 Ep4 | 30s
The 2015 quake that rocked Nepal was the biggest in 90 years—can we forecast the next one?

Memory Hackers Preview
S43 Ep7 | 30s
Scientists are learning how we can edit memories—and delete our worst fears.

A Cathedral of Ice
S43 Ep3 | 2m 45s
A scientist dives beneath the surface of the frigid Antarctic ice sheet.

Bazaar Rocks
S43 Ep2 | 2m 24s
It’s possible to find all of Earth’s history tucked inside a market stall in Morocco.

A Rock Symphony
S43 Ep2 | 1m 34s
Robert Hazen is a geologist who plays music—two interests that have a lot in common.

The Hidden Fluorescent World
S43 Ep9 | 3m 19s
The proteins that make fish fluoresce could help scientists map the human brain.

Rise of the Robots Preview
S43 Ep6 | 30s
How will human-like robots change our future and how we see ourselves?

Implanting False Memories
S43 Ep7 | 3m 17s
How to make someone believe they’ve committed a crime that never happened.

David Lynch x Robots = A.I. Art
S43 Ep6 | 2m 11s
David Lynch puts a literal face on the oddest collection of little learning robots.

Ötzi the Iceman's Ax
S43 Ep5 | 1m 48s
How did Ötzi the Iceman, who lived 5300 years ago, sharpen his ax?

Can Alzheimer's Be Stopped? Preview
S43 Ep8 | 30s
Join investigators as they untangle the cause of Alzheimer’s and race to develop a cure.

Wild Ways Preview
S43 Ep11 | 30s
Explore how newly established wildlife corridors offer hope to endangered species.

Vikings Unearthed Preview
S43 Ep10 | 30s
Uncover the truth behind the legendary Vikings and their epic journey to the Americas.

Viking Unearthed Sneak Peek
S43 Ep10 | 2m 27s
Uncover the truth behind the legendary Vikings and their epic journey to the Americas.

Alzheimer's Clinical Trials
S43 Ep8 | 4m 30s
Real patients and families describe what it's like being in an Alzheimer's clinical trial.

Inside the Mind of Alzheimer’s
S43 Ep8 | 4m 23s
Journalist Greg O'Brien gives a first-hand account of what it's like have Alzheimer's.

Predicting Alzheimer’s
S43 Ep8 | 2m 38s
Certain gene forms increase your risk of developing Alzheimer's.

Alzheimer's Other Victims
S43 Ep8 | 3m 49s
Family members describe what it's like to have a loved one with Alzheimer's.

Alzheimer's Virus-Like Protein
S43 Ep8 | 4m 13s
Tangles of a protein called tau inside neurons may be the culprit behind Alzheimer’s.

Operation Lighthouse Rescue Preview
S43 Ep13 | 30s
Join engineers as they race to rescue a historic lighthouse from certain doom.

Saving the Montauk Lighthouse
S43 Ep13 | 2m 55s
A unique method to fight erosion saved the Montauk Point Lighthouse from disaster.

Bombing Hitler's Supergun Preview
S43 Ep14 | 30s
Discover how Allied forces conspired to destroy one of Hitler’s most diabolical weapons.

The Physics Behind Texting
3m 37s
When you send a text, how does your message make the journey to your friend’s phone?

Great Human Odyssey Preview
S43 Ep12 | 30s
Follow our ancient ancestors’ footsteps out of Africa and into every corner of our planet.

Great Human Odyssey Sneak Peek
S43 Ep12 | 3m 16s
Follow our ancient ancestors’ footsteps out of Africa and into every corner of our planet.

School of the Future Preview
S43 Ep15 | 2m 16s
How can the science of learning help us rethink the future of education for all children?

Super Tunnel Preview
S43 Ep17 | 30s
Join engineers as they build a massive new railway deep beneath the streets of London.

Why More Testing Is Good
S43 Ep15 | 3m 23s
Students who get tested a lot without being graded can more easily recall what they learn.

Can Meditation Prevent Suicide?
S43 Ep15 | 3m 6s
A high school experienced several suicides so meditation was used to lower student stress.

Dancing to Learn... Science
S43 Ep15 | 4m 1s
A program uses choreography to get kids from diverse communities excited about science.

The Importance of Immersion
S43 Ep15 | 5m 8s
For English language learners, inclusion in fluent English classes is crucial for growth.

15 Years of Terror Preview
S43 Ep16 | 30s
From 9/11 to today’s crowd-sourced violence, trace how terrorists’ strategies have evolved

Unmaking an Islamic Terrorist
S43 Ep16 | 11m 50s
Mubin Shaikh went from young army cadet to self-radicalized Jihadist and back. Here’s what

Treasures of the Earth: Gems Preview
S43 Ep18 | 30s
What processes in the depths of the Earth forge beautiful and precious stones?

Treasures of the Earth: Metals Preview
S43 Ep19 | 30s
What is it about the nature of metals that have made them a pillar of human civilization?

Treasures of the Earth: Power Preview
S43 Ep20 | 30s
Drill underground to see the treasures that power our world—today and into the future.

Quantum Physics to Protect Votes
5m 23s
You can make your vote incredibly secure on Election Day—all thanks to quantum mechanics.

Why Bats Share Blood
1m 54s
Vampire bats will sometimes share a blood meal—but only with friends and family.

Customizing Education
S43 Ep15 | 4m 6s
Alt School is an experiment in customized learning environments.

School of the Future - Spanish Version
S43 Ep15 | 1h 53m 25s
How can the science of learning help us rethink the future of education for all children?

9 Minerals That Totally Rock
S43 Ep2 | 2m 18s
From sea creatures to cityscapes, minerals are everywhere!

Harvesting Electricity from Sand
S43 Ep20 | 2m 36s
When it comes to generating power, shining light on silicon opens up many possibilities.

Making Steel From Trash
S43 Ep19 | 2m 34s
Could pieces of plastic garbage become the resource we need to construct buildings?

Why Diamond Light is Beautiful
S43 Ep18 | 2m 46s
Much of a diamond's brilliance and fire comes down to physics.

Sunken Ship Rescue Preview
S42 Ep2 | 30s
A team of 500 engineers and divers struggle to raise the Costa Concordia cruise ship.

Big Bang Machine Preview
S42 Ep1 | 30s
Explore the deepest mysteries of the early universe and the quest to find the Higgs Boson.

Sinkholes—Buried Alive Preview
S42 Ep3 | 31s
The catastrophic collapse of the ground beneath our feet is a growing worldwide hazard.

Colosseum Building Blocks
S42 Ep6 | 2m 4s
The Colosseum was built in just several years due to a clever use of repeating arches.

Colosseum: Roman Death Trap Preview
S42 Ep6 | 30s
1500 years ago, how did the Romans engineer bloody spectacles and reenact sea battles?

Petra: Lost City of Stone Preview
S42 Ep5 | 30s
How did early engineers carve tombs into rock cliffs and funnel water to this desert city?

The Great Math Mystery Preview
S42 Ep7 | 30s
Is math invented by humans, or is it the language of the universe?

Hagia Sophia: Istanbul's Mystery Preview
S42 Ep4 | 30s
How has this unique structure, built on a seismic fault, survived centuries of quakes?

Invisible Universe Revealed Preview
30s
Follow the historic rescue of Hubble—the space telescope that unveiled the cosmos.

The Universe, Asymmetry, and You
S42 Ep1 | 2m 59s
The universe's symmetry was shattered by a quantum fluctuation, allowing life to exist.

Lethal Seas Preview
S42 Ep11 | 30s
A unique coral reef in Papua New Guinea shows what the future may hold as oceans acidify.

Ghosts of Subatomic Particles
1m 42s
The universe’s smallest particles fly down from space and emit from a radioactive rod.

Nazi Attack on America Preview
S42 Ep10 | 30s
A sunken German U-boat off the coast of New Orleans tells the story of Operation Drumbeat.

A Photomosaic of U-166
S42 Ep10 | 1m 31s
A high-res mapping expert pieces together thousands of images to make one wide shot.

Sea Butterflies in Danger
S42 Ep11 | 1m 44s
Pteropod populations could decline or vanish due to rising ocean acidity.

DNA-Testing Reef Diversity
S42 Ep11 | 4m 17s
Marine biologist Laetitia Plaisance investigates species diversity in two coral reefs.

Nuclear Meltdown Disaster Preview
S42 Ep14 | 30s
Go inside the Fukushima power plants for the minute-by-minute story of what went wrong.

A Pluto Flyby Dress Rehearsal
S42 Ep13 | 2m 52s
See key moments in NASA’s Pluto Flyby, as previewed in a 3-D simulation.

Chasing Pluto Preview
S42 Ep13 | 30s
Watch as the New Horizons spacecraft captures our first clear view of Pluto’s icy surface.

A Tsunami Strikes
S42 Ep14 | 2m 32s
When an unimaginably colossal tsunami hits Fukushima, the results are catastrophic.

Dawn of Humanity Preview
S42 Ep15 | 30s
Deep in a South African cave, an astounding discovery reveals clues to what made us human.

Space Pics That Amaze Scientists
2m 52s
We asked scientists, “What are your favorite images from space?” Here’s what they said.

Making North America Sneak Peek
S42 Ep20 | 4m 3s
Host Kirk Johnson explores how the continent was shaped—and how it shaped us.

Live Tweeting Ancient History
S42 Ep15 | 1m 44s
The instant a key finding in human evolution was made, it was shared with the whole world.

The Power of the Flood Myth
3m 32s
Scientists scour a marsh in the Middle East for signs of periodic Mesopotamian flooding.

Secrets of Noah's Ark Preview
S42 Ep12 | 30s
A team attempts to build the flood boat using inscriptions from an ancient clay tablet.

Digital Domain of Warfare
1m 56s
The Internet has become a battleground, and we need to protect ourselves.

Making North America: Life Preview
S42 Ep21 | 30s
How did massive volcanic eruptions, inland seas, and land bridges pave the way for life?

Are We Ready for a Cyber Attack?
S42 Ep17 | 4m
Cyber threats from nation states and lone hackers are a persistent threat to America’s cri

Sea Level Rise: When 1 in = 2 ft
2m 42s
Sea levels will rise by the same amount all over the world, right? Wrong. Here’s why.

Making North America: Human Preview
S42 Ep22 | 30s
How has the land shaped our lives, from the arrival of the first Americans up until today?

A Labyrinth of Lava
1m 18s
The big island of Hawaii is shot through with an underground labyrinth carved out by lava.

Towers of Chalk in Kansas
1m 11s
Amidst the flat plains of Kansas are the gorgeous remains of an ancient inland sea.

Making North America: Origins Preview
S42 Ep20 | 30s
Experience the colossal geologic forces that shaped our continent over 3 billion years.

Time Travel in the Grand Canyon
S42 Ep20 | 4m 33s
What does this geological wonder reveal about North America’s deep history?

Inside Einstein's Mind Preview
S42 Ep23 | 30s
Retrace the thought experiments that inspired his theory on the nature of reality.

How Panama Changed the World
S42 Ep21 | 3m 41s
Two scientists scan islands off Panama for clues to determine how the country was formed.

These Boulders are Alive
S42 Ep21 | 2m 48s
Dive down to rare stromatolites—key clues to the evolution of virtually all complex life.

The Volcano Under Yellowstone
4m 28s
A giant cauldron of magma simmering beneath Yellowstone is threatening to blow.

Einstein’s Thought Experiment
S42 Ep23 | 1m 49s
Your perception of time depends on how you are moving.

Gravity's Effect on Spacetime
S42 Ep23 | 1m 48s
Einstein's theory showed that time itself is affected by gravity.

North American Gold
S42 Ep22 | 2m 28s
When the Earth formed, most of the gold sunk to its core—but some remained trapped inside

Alien Planets Revealed Preview
S41 Ep1 | 30s
Are we alone—and if not, what might the inhabitants of far-flung worlds look like?

Zeppelin Terror Attack Preview
S41 Ep2 | 30s
Discover how Germany’s Zeppelins rained fiery terror on London in World War I.

Killer Typhoon Preview
S41 Ep6 | 45s
What made Haiyan so destructive, and how can we prepare for the next monster storm?

Poop-Eating Sloth Moths
2m 57s
Sloths may be cute, but they’re covered in a surprising number of creepy crawlies.

Ghosts of Murdered Kings Preview
S41 Ep3 | 30s
Bronze age bog bodies reveal the strange beliefs of the long-vanished peoples of Europe.

Roman Catacomb Mystery Preview
S41 Ep4 | 30s
Who or what killed hundreds of people hidden in a burial chamber nearly 2,000 years ago?

Great Cathedral Mystery Preview
S41 Ep5 | 30s
Master craftsmen explore how Florence’s monumental dome was built nearly 600 years ago.

Wild Predator Invasion Preview
S41 Ep7 | 52s
Can we return apex predators to their natural environments without endangering humans?

Why Sharks Attack Preview
S41 Ep11 | 30s
Will analyzing the hunting instincts of this endangered predator reduce deadly attacks?

The Mysteries of Optic Flow
S41 Ep9 | 2m 58s
Birds use a trick of the eye called “optic flow” to zip through forests without colliding.

Five Dogs With Crazy Résumés
S41 Ep9 | 2m 58s
Learn about the traits we most prize in dogs, and the bizarre jobs they were bred for.

Animal Minds: Birds Preview
S41 Ep8 | 30s
Birds that craft tools and pick locks are rewriting the rules of animal intelligence.

Nature's Time Capsules
S41 Ep3 | 2m 7s
By studying bogs, scientists can uncover thousands of years of Earth’s history.

Animal Minds: Dogs Preview
S41 Ep9 | 30s
How do dogs, sharks, dolphins, or birds experience the world?

Animal Minds: Smartest Preview
S41 Ep10 | 30s
Explore the social lives of some of the smartest animals on the planet.

Flying Cow Intestines
S41 Ep2 | 5m 23s
In World War I, the Germans used cow guts to construct their deadly Zeppelins.

Escape from Nazi Alcatraz Preview
S41 Ep12 | 30s
A crack team rebuilds a glider that POWs hoped to catapult off the top of Colditz Castle.

A Clever Colditz Escape
S41 Ep12 | 2m 55s
A chance discover during a game of rugby led Dutch POWs to an ingenious WWII jailbreak.

Reconstructing the D-Day Gliders
S41 Ep13 | 3m 52s
The Allies used silent wooden gliders to get behind enemy lines before the D-Day landings.

Autopsying a Roman Catacomb
S41 Ep4 | 5m 1s
Did a lethal plague kill thousands in ancient Rome? Centuries-old DNA may hold the answer.

D-Day's Sunken Secrets Preview
S41 Ep13 | 41s
Dive teams, submersibles, and robots explore a massive underwater WWII archeological site.

Sculpting a Young Artist
S41 Ep5 | 4m 5s
A city-wide competition shaped the career of the architect behind Florence’s famous dome.

Vaccines—Calling the Shots Preview
S41 Ep14 | 30s
Examine the science behind vaccinations and the risks of opting out.

Vaccines—Calling the Shots Short Preview
S41 Ep14 | 20s
Examine the science behind vaccinations and the risks of opting out.

The Pattern in Nature's Networks
3m 25s
Science shows it’s a small world after all—and nature’s networks follow a similar pattern.

Brushes with Death
S41 Ep14 | 2m 27s
Dorothy Roseman describes her close encounters with vaccine-preventable diseases.

Tiny Tattoo Vaccines
S41 Ep14 | 5m 52s
New miniature vaccines may be administered like painless tattoos.

Fighting HPV in Bhutan
S41 Ep14 | 6m 19s
Bhutan is the first developing country to embrace a vaccine to fight cervical cancer.

Stabilizing Vaccines with Silk
S41 Ep14 | 3m 57s
New technology may bypass the need to keep vaccines cold by stabilizing them with silk.

Two Weeks Under the Sea
4m 33s
Aquanauts study the health of marine organisms—by becoming their neighbors.

Rise of the Hackers Preview
S41 Ep15 | 30s
A new global geek squad is harnessing cryptography to stay a step ahead of cybercriminals.

Why Planes Vanish Preview
S41 Ep16 | 1m 16s
Can new technology prevent aircraft like Flight MH370 from disappearing without a trace?

A History of Vaccination
S41 Ep14 | 4m 48s
Vaccination began as a traditional therapy over a thousand years ago.

Immunity and Vaccines Explained
S41 Ep14 | 2m 11s
Vaccines work with our immune system to keep us from getting sick.

U.S. Polio Vaccines: Then and Now
S41 Ep14 | 13m 47s
The polio vaccine's history extends more than fifty years.

Lawmakers Act on Outbreaks
S41 Ep14 | 4m 47s
Dr. Richard Pan explains California's strategy for increasing vaccination rates.

Ben Franklin's Balloons Preview
S41 Ep17 | 30s
Experts recreate the French’s daring first manned flights, which Franklin had chronicled.

First Air War Preview
S41 Ep18 | 30s
How did fighter planes evolve from rickety biplanes to deadly machines during WWI?

Emperor's Ghost Army Preview
S41 Ep20 | 30s
Explore the buried clay warriors, chariots, and bronze weapons of China’s first emperor.

Bigger Than T. rex Preview
S41 Ep19 | 30s
Meet Spinosaurus—the lost killer of the Cretaceous and the world’s larger predator ever.

Zombies and Calculus
4m 38s
The zombie apocalypse is here, and calculus explains why we can’t quite finish them off.

Surviving Ebola Preview
S41 Ep23 | 30s
As the epidemic threatens to spiral out of control, scientists race to find a cure.

Spinosaurus vs. Alligator
S41 Ep19 | 2m 41s
A tame alligator named Bubba betrays the secrets of the largest predator that ever lived.

Strange Captain Strange
S41 Ep18 | 3m 30s
A pilot transforms how airplanes fight during WWI, but nearly plummets and dies trying.

Killer Landslides Preview
S41 Ep21 |
Explore the forces behind deadly landslides—and the danger zones for the next big one.

First Man on the Moon Preview
S41 Ep22 | 30s
He risked his life for the nation and became a world icon, but who was Neil Armstrong?

Ancient Computer Preview
S40 Ep7 | 29s
Learn about the world’s first computer, which was found in a Greek shipwreck.

Doomsday Volcanoes - Preview
S40 Ep1 | 30s
Could the explosion of Iceland's ticking time bombs cause cold and famine worldwide?

Decoding Neanderthals Preview
S40 Ep2 | 30s
Shared DNA reveals a deep connection with our long-vanished human cousins.

Rise of the Drones Preview
S40 Ep3 | 30s
Meet a new breed of flying robots, from tiny swarming vehicles to giant unmanned planes.

Building Pharaoh's Chariot Preview
S40 Ep5 | 30s
A team uncovers the advanced engineering behind an ancient Egyptian war machine.

Who Killed Lindbergh's Baby? Preview
S40 Ep4 | 30s
Airs Wednesday, July 31, 2013 at 9:00 p.m. ET/PT. Check your local listings.

A Volcanic Labyrinth
S40 Ep1 | 2m 59s
See the only place on the Earth where scientists can study a volcano from the inside.

Earth from Space Preview
S40 Ep6 | 50s
Detailed satellite images reveal the web of connections that sustain life on Earth.

Scanning the Dead
S40 Ep2 | 2m 10s
Virtual autopsies give coroners incredibly detailed and telling images of victims’ bodies.

Neanderthal Superglue
S40 Ep2 | 2m 58s
This “superglue” suggests Neanderthals weren’t as primitive as once thought.

A Neanderthal Burial
S40 Ep2 | 2m 16s
Scientists think a posed body alongside a panther paw are evidence of Neanderthal rites.

What Drones Can See
S40 Ep3 | 2m 52s
An engineer describes the next-generation surveillance sensor for UAVs, called ARGUS.

A Next-Generation Drone
S40 Ep3 | 48s
The X-47B prototype can land on a flight deck without input from a pilot.

Swarming Drones
S40 Ep3 | 2m 52s
A University of Pennsylvania lab is developing tiny drones that sense their environment.

Independent UAVs
S40 Ep3 | 30s
A DARPA researcher describes what would constitute a breakthrough in UAV autonomy.

Scripting the Truth
S40 Ep4 | 1m 57s
Handwriting analysis technology helps scientists figure out who killed Lindbergh's baby.

Chariot Weapons
S40 Ep5 | 4m 49s
A military historian demonstrates how the ancient Egyptians fought from their chariots.

The Volga Trade Route
S40 Ep6 | 2m 58s
The Vikings may have trekked all the way to Iran in search of crucible steel.

When Hurricane Sandy Went Rogue
S40 Ep6 | 2m 6s
What started out as a tropical storm evolved into one of New York City’s worst nightmares.

Mind of a Rampage Killer Preview
S40 Ep8 | 30s
Can science help us understand why some people commit horrific acts of mass murder?

The Looming Satellite Gap
S40 Ep6 | 1m 51s
Many Earth-observing satellites are nearing the end of their lives.

Australia: Awakening Preview
S40 Ep9 | 30s
Australia’s landscape holds clues to Earth's early history and the beginning of life.

Australia: Life Explodes Preview
S40 Ep10 | 30s
Fossils reveal how life’s explosion in the ocean was recreated on dry land.

Australia: Monsters Preview
S40 Ep11 | 30s
Some 250 million years ago, some of the largest, most dangerous reptiles ruled this land.

Australia: Strange Creatures Preview
S40 Ep12 | 30s
After a massive extinction, diverse marsupials came to dominate this isolated continent.

Meteor Strike Preview
S40 Ep13 | 2m 26s
A meteor burst into a fireball over Siberia. Can we spot the next deadly asteroid in time?

Ancient Computer Sneak Peek
S40 Ep7 | 4m 38s
An ancient Greek computer could predict eclipses with impressive accuracy.

Manhunt—Boston Bombers Preview
S40 Ep14 | 30s
Follow the manhunt, step-by-step, for the suspects in the Boston Marathon bombings.

Oklahoma's Deadliest Tornadoes Preview
S40 Ep15 | 30s
Hear stories from survivors of Moore’s tornado and meet scientists who stalk these storms.

Making More Stuff Preview
S40 Ep18 | 1m 12s
Host David Pogue explores the cutting-edge research behind a new wave of innovation.

Bomb Squad Robots
S40 Ep14 | 2m 39s
Remote controlled robots keep police department technicians safe from potential bombs.

Ground Zero Supertower Preview
S40 Ep16 | 30s
Engineers race to complete 1 World Trade Center as they grapple with the final challenges.

Making Stuff Colder Preview
S40 Ep20 | 30s
Host David Pogue asks if cold holds the key to technology that can improve our lives.

Making Stuff Safer Preview
S40 Ep21 | 30s
Host David Pogue examines groundbreaking research that aims to keep us out of harm’s way.

Floating Buildings
S40 Ep17 | 1m 37s
Engineers in the Netherlands propose building homes that float on water.

Making Stuff Faster Preview
S40 Ep18 | 30s
Host David Pogue tries to find out if there are physical limits to how fast we can go.

Mushroom Material
S40 Ep19 | 3m 45s
Move over peanuts, there’s a new packaging material in town—and it’s made of mushrooms.

Cold Case JFK Preview
S40 Ep22 | 30s
Can modern forensic science uncover fresh clues about the assassination of JFK?

Asteroid: Doomsday or Payday? Preview
S40 Ep24 | 30s
Will future asteroids trigger massive extinctions—or be mined for precious minerals?

Making Stuff Wilder Preview
S40 Ep19 | 30s
Host David Pogue travels the globe to explore new technologies inspired by Nature.

Cyber War Games
S40 Ep21 | 3m 50s
A project called DETER allows researchers to practice fighting cyber crimes.

The Hummingbird Drone
S40 Ep19 | 3m 36s
A new drone doesn't fly like an airplane or helicopter—it flaps its wings like a bird.

Super Fast Cameras
S40 Ep18 | 5m 11s
A new high speed camera can capture light in motion and see around corners.

Cryonics
S40 Ep20 | 4m 40s
A company called Alcor freezes dead people, hoping to restore them to health one day.

At the Edge of Space Preview
S40 Ep23 | 30s
Can scientists unravel the mysterious phenomena that lurk between Earth and space?

The Shot That Missed
S40 Ep22 | 3m 38s
What happened to the mysterious "first bullet" from JFK's assassination?

Reimagining New York
S40 Ep17 | 4m 35s
A risk management expert says that we must look to New York’s future to prevent flooding.

Repairing the Beach After Sandy
S40 Ep17 | 2m 55s
To rebuild the coastline, engineers are pumping sand onto New York’s Coney Island beach.

Judo with Nature
S40 Ep17 | 2m 18s
Planting trees in front of dikes is one way to keep large waves from flooding the shore.

Sneak Peek: Deadliest Volcanoes
S39 Ep1 | 6m 22s
Could tiny particles called muons allow us to see deep inside volcanoes?

Ice Age Death Trap Preview
S39 Ep5 | 30s
Scientists race to uncover a site in the Rockies packed with fossil mammoths.

Bombing Hitler's Dams Preview
S39 Ep2 | 30s
Experts recreate the bold feat of "dambuster" pilots who used bouncing bombs.

3D Spies of WWII Preview
S39 Ep3 | 30s
NOVA reveals how the Allies used special aerial photos to deal a dire blow to the Nazi.

Mystery of a Masterpiece Preview
S39 Ep4 | 30s
Art experts investigate if a portrait sold in 1998 is actually a lost Leonardo painting.

Drinking "Mastodon Juice"
S39 Ep5 | 59s
Forget Happy Hour. These scientists drink water trapped in Ice Age bones.

Separating Twins Preview
S39 Ep8 | 30s
Follow the amazing story of Trishna and Krishna, girls born joined at the head.

Extract Your Own DNA
S39 Ep9 | 2m 45s
Behold your very own DNA in this do-it-yourself science experiment.

Chemotherapy and Breast Cancer
S39 Ep9 | 3m 5s
For some breast cancer patients, chemotherapy isn't always necessary.

Elemental Bloopers
S39 Ep6 | 2m 46s
Watch David Pogue's hilarious out-takes from NOVA's "Hunting the Elements."

Solar Wind and Storms
S39 Ep7 | 2m 47s
NOVA Labs: Bursts of plasma released by the Sun create "space weather" around our planet.

The Electromagnetic Spectrum
S39 Ep7 | 2m 55s
NOVA Labs: Most of what we know about solar science comes from reading the Sun's light.

The Sun's Energy
S39 Ep7 | 2m 6s
NOVA Labs: What are the processes that produce the Sun's light and heat?

Solar Space Telescopes
S39 Ep7 | 3m 50s
NOVA Labs: New solar telescopes are allowing us to see the Sun like never before.

The Threat to Earth
S39 Ep7 | 2m 32s
NOVA Labs: What would happen if a solar storm overwhelmed Earth's natural defenses?

Introducing NOVA's Sun Lab
S39 Ep7 | 2m 13s
Learn about solar storms and do your own research using images from NASA telescopes.

How Can I Study the Sun?
S39 Ep7 | 3m 17s
NOVA Labs: Learn how to use the Helioviewer, a tool at the heart of NOVA's Sun Lab.

Secrets of the Sun Preview
S39 Ep7 | 30s
Scientists are striving to better grasp our star and its destructive solar storms.

Ultimate Mars Challenge Preview
S39 Ep15 | 30s
Airs Wednesday, December 11, 2013 at 9:00 p.m. ET/PT. Check your local listings.

Secrets of the Viking Sword Preview
S39 Ep13 | 30s
Airs Wednesday, September 25, 2013 at 9:00 p.m. ET/PT. Check your local listings.

Mystery of Easter Island Preview
S39 Ep14 | 30s
A team of scientists and volunteers test a theory on how these ancient statues were moved.

Inside the Megastorm Preview
S39 Ep16 | 30s
Explore what made Megastorm Sandy so much more devastating than other hurricanes.

Space Kids
S39 Ep15 | 1m 34s
Engineers who landed the Curiosity rover on Mars recall their early love of space.

Parachute Problems
S39 Ep15 | 2m 54s
NASA untangles why a parachute failed during tests prior to the Curiosity landing.

Kryptonite for Sharks
S39 Ep6 | 6m 48s
Marine biologist Patrick Rice is using rare earth elements to repel sharks.

Sinking Ship Guitar Hero
S39 Ep11 | 3m 7s
As the ship Oceanos began to sink, a guitarist aboard helped lift passengers to safety.

Making Stuff: Stronger Preview
S38 Ep2 | 30s
Airs Wednesday, August 21, 2013 at 9:00 p.m. ET/PT. Check your local listings.

Making Stuff: Smaller Preview
S38 Ep3 | 30s
Airs Wednesday, August 21, 2013 at 10:00 p.m. ET/PT. Check your local listings.

Making Stuff: Cleaner Preview
S38 Ep4 | 30s
Airs Wednesday, August 28, 2013 at 9:00 p.m. ET/PT. Check your local listings.

Making Stuff: Smarter Preview
S38 Ep5 | 30s
Airs Wednesday, August 28, 2013 at 10:00 p.m. ET/PT. Check your local listings.

Soccer Playing Robots
S38 Ep6 | 3m 40s
These completely autonomous ball-kickers are irresistible to watch.

Cars That Power the Grid
S38 Ep9 | 2m 11s
Electric cars may play a critical role in a future "smart grid."

Power Surge: Preview
S38 Ep9 | 36s
Are we finally on the brink of a clean energy revolution? Airs April 20, 2011 on PBS

Japan's Killer Quake: Extended Preview
S38 Ep10 | 1m 47s
An eyewitness account and investigation of the earthquake, tsunami, and nuclear crisis.

Brian Greene Previews NOVA's "The Fabric of the Cosmos"
S38 Ep16 | 2m 10s
Physicist Brian Greene discusses his return to NOVA with "The Fabric of the Cosmos."

Finding Life Beyond Earth Preview
S38 Ep13 | 30s
Scientists are on the verge of answering one of the greatest questions: Are we alone?

The Mars Rover, "Curiosity"
S38 Ep13 | 4m 25s
NASA is sending a robotic rover called "Curiosity" to find out if there is life on Mars.

The Fabric of the Cosmos: Quantum Leap Preview
S38 Ep18 | 30s
Take a wild ride into the quantum realm, where even the impossible seems possible.

The Fabric of the Cosmos: The Illusion of Time Preview
S38 Ep17 | 30s
It defines our lives, but what is time really? Have a look into its true nature.

The Fabric of the Cosmos: Universe or Multiverse? Preview
S38 Ep19 | 30s
Is our universe unique, or could it be just one in an endless "multiverse"?

The Fabric of the Cosmos: What Is Space? Preview
S38 Ep16 | 30s
Surprising clues indicate that space is very much something and not nothing.

Iceman Murder Mystery Preview
S38 Ep15 | 30s
A new forensic investigation of a 5,000-year-old mummy reconstructs his death.

The Fabric of the Cosmos Preview
S38 Ep16 | 3m 8s
Brian Greene reveals a mind-boggling reality beneath the surface of our everyday world.

Deadliest Earthquakes Preview
S38 Ep1 | 30s
Big quakes are inevitable, but can we lessen their devastation?

Japan's Killer Quake - Preview
S38 Ep10 | 30s
An eyewitness account and investigation of the earthquake, tsunami, and nuclear crisis.

Venom: Nature's Killer - Preview
S38 Ep8 | 30s
Airs Wednesday, May 30, 2012 at 9:00 p.m. ET/PT. Check your local listings.

Crash of Flight 447 - Preview
S38 Ep7 | 30s
Airs Wednesday, June 13, 2012 at 9:00 p.m. ET/PT. Check your local listings.

Higgs Boson Revealed
3m 53s
Go behind the scenes at CERN to learn more about the historic July 4 announcement.

An Interview with Sally Ride
S38 Ep13 | 15m 46s
Watch an uncut interview with the late astronaut, conducted at NASA in 1984.

Early Earth Bombarded By Comets
S38 Ep13 | 5m 10s
Comets carrying chemicals necessary for life may have come to Earth billions of years ago.

Hunting Planets
S38 Ep13 | 4m 40s
NASA’s Kepler mission lets us search for planets orbiting stars outside our solar system.

Is There Life on Enceladus?
S38 Ep13 | 6m 14s
Scientists discover evidence for the key ingredients for life on Saturn's moon Enceladus.

Ghosts of Machu Picchu Preview
S37 Ep4 | 1m 56s
Airs Wednesday, September 3, 2014 at 9:00 p.m. ET/PT. Check your local listings.

Extreme Cave Diving | Preview
S37 Ep5 | 1m 25s
Watch Wednesday, Dec. 2, 2015. Check your local listings.

Crash of Flight 447 Preview
S37 Ep12 | 30s
Forensic investigators reconstruct the final moments of the Air France disaster.

The Founders of Modern Astronomy
S37 Ep6 | 4m 13s
William Herschel gets the credit, but his sister Caroline was also a pioneer astronomer.

Hunting the Edge of Space: Mystery of the Milky Way Preview
S37 Ep8 | 30s
Airs Wednesday, November 28, 2012 at 9:00 p.m. ET/PT. Check your local listings.

Hunting the Edge of Space, Part 2 - Pre
S37 Ep9 | 30s
Airs Wednesday, December 5, 2012 at 9:00 p.m. ET/PT. Check your local listings

Building the Great Cathedrals Preview
S37 Ep11 | 30s
Airs Wednesday, December 25, 2013 at 9:00 p.m. ET/PT. Check your local listings.

Emergency Mine Rescue Preview
S37 Ep12 | 30s
Engineers and NASA scientists aid an all-out effort to save 33 Chilean miners trapped.

Trapped in an Elevator Preview
S37 Ep13 | 30s
Airs Tuesday, November 2, 2010 at 8:00-9:00 p.m. ET/PT. Check your local listings.

Trapped in an Elevator Preview
S37 Ep13 | 30s
Airs Tuesday, November 2, 2010 at 8:00-9:00 p.m. ET/PT. Check your local listings.

Taking the Heat
S37 Ep17 | 3m 27s
David Pogue visits DuPont to get a closer look at fireproof clothing.

Killer Subs in Pearl Harbor - Preview
S37 Ep1 | 30s
Airs Wednesday, May 23, 2012 from 9:00 p.m. ET/PT. Check your local listings.

What Are Dreams - Preview
S36 Ep12 | 30s
Airs Wednesday, August 22, 2012 at 9:00 p.m. ET/PT. Check your local listings.

Lizard Kings Preview
S36 Ep16 | 30s
Meet the monitors, the largest, fiercest, and craftiest lizards on Earth.

Becoming Human - Preview
S36 Ep13 | 30s
Airs Wednesday, August 31, 2011 at 8:00 p.m. ET/PT. Check your local listings.

Darwin's Darkest Hour - Preview
S36 Ep5 | 30s
Airs Wednesday, December 7, 2011 at 9:00 p.m. ET/PT. Check your local listings.

Extreme Ice Preview
S36 Ep4 | 30s
Airs Wednesday, December 18, 2013 at 9:00 p.m. ET/PT. Check your local listings.

Doctors' Diaries - Preview
S36 Ep8 | 30s
Get the final update on the seven doctors NOVA documented for 21 years.

Rat Attack - Preview
S36 Ep3 | 30s
Airs Wednesday, August 15, 2012 at 9:00 p.m. ET/PT. Check your local listings.

Can the Bonobo Get the Apple?
S35 Ep7 | 55s
Primatologist Brian Hare sees whether a bonobo can solve a puzzle to get a slice of apple.

Can the Chimp Get the Grape?
S35 Ep7 | 1m 43s
A researcher tests the cognitive skills of a chimpanzee with a seemingly simple task.

Bathing with the "Car Talk" Guys
S35 Ep9 | 1m 23s
Tom and Ray test the waters of Iceland's Blue Lagoon while filming "Car of the Future."

Space Shuttle Disaster - Preview
S35 Ep12 | 30s
Airs Thursday, January 31, 2013 at 10:00 p.m. ET/PT. Check your local listings.

Martian Weather
S35 Ep15 | 4m 34s
Is the weather on Mars anything like the weather on Earth? Find out in this video.

Put A Lid on It
S35 Ep19 | 2m 26s
Bill Nye, TV's "Science Guy," conducts a pasta-making experiment that can save energy.

Arctic Dinosaurs - Preview
S35 Ep11 | 30s
Airs Wednesday, July 27, 2011 at 9:00 p.m. ET/PT. Check your local listings.

Hunting the Hidden Dimension - Preview
S35 Ep14 | 30s
Airs Wednesday, August 24, 2011 at 9:00 p.m. ET/PT. Check your local listings.

Evolution in Action
S34 Ep16 | 3m 21s
See how salamanders in California are evolving, just as Darwin might have predicted.

Why NOVA Covered the Case
S34 Ep16 | 2m 37s
Senior Executive Producer Paula Apsell describes the decision to make "Judgment Day."

Kings of Camouflage Preview
S34 Ep2 | 30s
Airs Wednesday, August 14, 2013 at 9:00 p.m. ET/PT. Check your local listings

The Great Inca Rebellion - Preview
S34 Ep9 | 30s
Airs Wednesday, May 16, 2012 at 9:00 p.m. ET/PT. Check your local listings.

Missing in MIG Alley - Preview
S34 Ep18 | 30s
Airs Wednesday, May 23, 2012 at 10:00 p.m. ET/PT. Check your local listings.

Mystery of the Megavolcano - Preview
30s
Airs Wednesday, December 14, 2011 at 10:00 p.m. ET/PT. Check your local listings.

Origins: Earth Is Born Preview
S31 Ep11 | 30s
Journey back to the beginning of everything: the universe, Earth, and life itself.

Hunt for the Supertwister - Preview
S31 Ep7 | 30s
Airs Wednesday, May 9, 2012 at 10:00 p.m. ET/PT. Check your local listings.

The Elegant Universe: Part 2 Preview
S30 Ep13 | 30s
Do miniscule vibrating strands of energy hold the key to a unified theory of physics?

The Elegant Universe: Part 3 Preview
S30 Ep14 | 30s
Will experimental particle physics confirm the wild predictions of string theory?

The Elegant Universe: Part 1 Preview
S30 Ep12 | 30s
Combining the laws of the universe in one theory that explains it all is the Holy Grail.

Einstein Thought Experiments
S23 Ep11 | 3m 12s
Watch visualizations of Einstein's thought experiments.
Upcoming Schedule
Fri 03/31
3:00 PM

KVIE 6
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Fri 03/31
3:00 PM

KVIE HD 6.1
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Sat 04/1
7:00 AM

KVIE2 6.2
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Mon 04/3
8:00 PM

KVIE2 6.2
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Tue 04/4
2:00 AM

KVIE2 6.2
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Tue 04/4
4:00 PM

KVIE World 6.3
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Tue 04/4
9:00 PM

KVIE World 6.3
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Wed 04/5
5:00 AM

KVIE World 6.3
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Wed 04/5
2:00 PM

KVIE2 6.2
NOVA
Einstein's Quantum Riddle
An experiment in the Canary Islands uses quasars at opposite ends of the universe to settle the debate over the physical phenomenon of quantum entanglement.
Wed 04/5
9:00 PM

KVIE 6
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Wed 04/5
9:00 PM

KVIE HD 6.1
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Fri 04/7
3:00 PM

KVIE 6
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Fri 04/7
3:00 PM

KVIE HD 6.1
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Sat 04/8
7:00 AM

KVIE2 6.2
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Mon 04/10
8:00 PM

KVIE2 6.2
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Tue 04/11
2:00 AM

KVIE2 6.2
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Tue 04/11
4:00 PM

KVIE World 6.3
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Tue 04/11
9:00 PM

KVIE World 6.3
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Wed 04/12
5:00 AM

KVIE World 6.3
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Wed 04/12
2:00 PM

KVIE2 6.2
NOVA
Arctic Sinkholes
Investigating explosions in Siberia and other evidence that melting soil in the Arctic is releasing vast amounts of methane, a potent greenhouse gas.
Wed 04/12
9:00 PM

KVIE HD 6.1
NOVA
Weathering the Future New
Americans use ancient wisdom and new solutions to fight against extreme weather, from intense rainstorms to megafires and droughts.
Wed 04/12
9:00 PM

KVIE 6
NOVA
Weathering the Future New
Americans use ancient wisdom and new solutions to fight against extreme weather, from intense rainstorms to megafires and droughts.
Fri 04/14
3:00 PM

KVIE 6
NOVA
Weathering the Future
Americans use ancient wisdom and new solutions to fight against extreme weather, from intense rainstorms to megafires and droughts.
Fri 04/14
3:00 PM

KVIE HD 6.1
NOVA
Weathering the Future
Americans use ancient wisdom and new solutions to fight against extreme weather, from intense rainstorms to megafires and droughts.
Sat 04/15
7:00 AM

KVIE2 6.2
NOVA
Weathering the Future
Americans use ancient wisdom and new solutions to fight against extreme weather, from intense rainstorms to megafires and droughts.
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