NOVA

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.

Ending HIV in America Preview
S49 Ep11 | 30s

Can innovative drugs and therapies finally end HIV?

Saving Venice Preview
S49 Ep12 | 30s

Can innovative engineering projects save Venice?

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?

Rebuilding Notre Dame
S49 Ep13 | 30s

A team tackles the restoration of iconic Notre Dame Cathedral.

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.

3 Major Space Stories of 2022
4m 6s

In 2023 the exploration continues.

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?

Why Misinformation Matters
2m 41s

The spread of misinformation is influencing human behavior.

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.

Can Solar Storms Knock Out Our Power Grid?
6m 55s

Aurora is the beautiful result of space weather.

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.

The Science of Unidentified Aerial Phenomena
28m 7s

Ever spotted a strange object in the sky?

How COVID-19 and Climate Change Affect Breathing
4m 13s

COVID insidiously impacts a man's lungs — giving him reasons to appreciate each breath.

Toxic “Forever Chemicals” Found in Americans' Blood
6m 50s

Learn how they earn the "forever" label.

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.

How Humans Could Make Icehouse Earth into a Hothouse
S47 Ep1 | 4m 21s

Understand climate time.

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.

Are Cats As Easy to Train as Dogs?
S47 Ep3 | 2m 19s

Tips on how to train your cat.

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?

How Coronavirus Tests Work
S47 Ep10 | 6m 46s

Learn the science behind the tests.

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.

Watch Baby Eagles Hatch and Grow
S47 Ep7 | 4m 7s

It takes 37 days for eagle eggs to incubate.

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.

Signs of Life Found on Venus
6m 4s

Could this mean there's life in our planetary neighbor's clouds?

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?

Is it Safe to Fly During the Pandemic?
6m 14s

If you do have to fly, here's what to expect.

Your COVID-19 Vaccine is Coming
7m 12s

Learn more about the first coronavirus vaccines.

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 is a Bomb Cyclone?
1m 54s

Discover the science behind the phenomenon.

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.

This Is Your Brain and Body on Power
4m 22s

Discover how power influences your body and brain.

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?

Using Science to Achieve Invisibility
3m 21s

Achieving true invisibility is a difficult feat.

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.

The Science Behind This Sleight of Hand
46s

Why this card trick might fool your eyes.

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.

Five Facts About Our Home Planet
S46 Ep12 | 1m 4s

Earth is the only known planet to harbor life.

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."

Five Facts About the Red Planet
S46 Ep13 | 1m 3s

Getting to know our red celestial neighbor.

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?

Giving the "Mona Lisa" a Digital Makeover
S46 Ep21 | 3m 10s

See the “Mona Lisa” as da Vinci once did.

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.

Has Violence Declined Through the Ages?
S46 Ep22 | 2m 13s

Violence is a complicated thing to measure.

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.

What are Animals Saying? Preview
S45 Ep101 | 28s

Can we crack the code of animal communication?

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.

What are Chimps Saying?
S45 Ep101 | 4m 23s

Chimps have their own rich world of communication.

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?

Meet Talithia Williams
S45 Ep101 | 4m 25s

Meet Dr. Talithia Williams, host of NOVA Wonders.

Meet Rana el Kaliouby
S45 Ep101 | 4m 5s

Meet Dr. Rana el Kaliouby, the co-host of NOVA Wonders.

Meet André Fenton
S45 Ep101 | 5m 17s

Meet Dr. André Fenton, the co-host of NOVA Wonders.

Giving Birth to a Botfly
S45 Ep102 | 3m 10s

Could you love a baby botfly?

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?