Season 47

Discover the fascinating chemistry that makes our world and everything in it—including us.
Beyond the Elements: Life

Beyond the Elements: Indestructible
Discover the fascinating chemistry that makes our world and everything in it—including us.
Beyond the Elements: Indestructible

Beyond the Elements: Reactions
Discover the fascinating chemistry that makes our world and everything in it—including us.
Beyond the Elements: Reactions

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

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

A to Z: How Writing Changed the World
The creation of printing, the first information technology, drove empires and revolutions.
A to Z: How Writing Changed the World

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

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

Follow eagles from the nest to the skies to see what makes these predators so remarkable.
Eagle Power

Scientists race to understand and defeat the coronavirus behind the COVID-19 pandemic.
Decoding COVID-19

Could it be that body fat has more to do with biological processes than personal choices?
The Truth About Fat

Can Cuba's innovative lung cancer vaccines give new hope to patients across the world?
Cuba's Cancer Hope

Why do we sleep? And what does sleep have to do with memory, trauma, and our emotions?
Mysteries of Sleep

Paleontologist Kirk Johnson explores the dynamic history—and future—of ice at the poles.