Season 47

Video thumbnail: NOVA Saving Notre Dame

NOVA

Saving Notre Dame

Scientists and engineers fight to save Notre Dame Cathedral after the 2019 fire.

Saving Notre Dame

Video thumbnail: NOVA Can We Cool the Planet?

NOVA

Can We Cool the Planet?

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

Can We Cool the Planet?

Video thumbnail: NOVA Nature's Fear Factor

NOVA

Nature's Fear Factor

Can bringing predators—and fear—back into an ecosystem help restore its natural balance?

Nature's Fear Factor

Video thumbnail: NOVA A to Z: How Writing Changed the World

NOVA

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

Video thumbnail: NOVA A to Z: The First Alphabet

NOVA

A to Z: The First Alphabet

The birth of writing and the first alphabet were among the world’s most vital inventions.

A to Z: The First Alphabet

Video thumbnail: NOVA CRISPR Gene-Editing Reality Check

NOVA

CRISPR Gene-Editing Reality Check

CRISPR gene-editing technology is advancing quickly. What can it do now—and in the future?

CRISPR Gene-Editing Reality Check

Video thumbnail: NOVA Decoding COVID-19

NOVA

Decoding COVID-19

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

Decoding COVID-19

Video thumbnail: NOVA Polar Extremes

NOVA

Polar Extremes

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

Polar Extremes

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