A to Z: The First Alphabet

Writing shaped our world and the rise of human knowledge, from the trading of goods to tales of ancient goddesses and kings. Follow the evolution of the written word, from 4,000-year-old carvings in an Egyptian turquoise mine to modern-day alphabets.

PBS’ premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA programs demystify science and technology and highlight the people involved in scientific pursuits.

NOVA Episodes

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Can We Cool the Planet?

Scientists look to geoengineering and other methods to cool the planet.

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Touching the Asteroid

Spacecraft OSIRIS-REx attempts to grab a piece of an asteroid to bring it back to Earth.

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A to Z: How Writing Changed the World

The creation of printing, the first information technology, drove empires and revolutions.

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Secret Mind of Slime

Meet slime molds: the brainless blobs that can learn, make decisions, and navigate mazes.