Nova

Season 50 Episode 12: Ancient Earth: Frozen

Oct 11, 2023 TV-PG 54m 8.7

700 million years ago, Earth was a giant snowball cloaked in ice from pole to pole—a global deep freeze that held the planet in a stranglehold, threatening the survival of the earliest complex life. How did life manage to hold on in this forbidding world? Leading scientists investigate how this catastrophe may have become a catalyst for life to evolve in creative new ways as it bounced back from the brink—setting the stage for the astonishing complexity we see today.

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Season 50 Episodes:

Episode 1 London Super Tunnel

1. London Super Tunnel

Aired: Feb 1, 2023

Thousands race to build Europe's biggest construction project--London's new s...

Episode 5 Nazca Desert Mystery

5. Nazca Desert Mystery

Aired: Apr 12, 2023

Discoveries of long-hidden lines and figures etched into the Peruvian desert ...

Episode 6 Crypto Decoded

6. Crypto Decoded

Aired: Apr 26, 2023

Unraveling the social and technological underpinnings of cryptocurrency, from...

Episode 7 Zero to Infinity

7. Zero to Infinity

Aired: May 3, 2023

Explains where 0 came from & how to work with and think about infinity.

Episode 8 Rebuilding Notre Dame

8. Rebuilding Notre Dame

Aired: May 10, 2023

Remarkable relating of the technical aspects and problems of restoring the No...

Watch Nova Season 50 Episode 12 Exclusively on PBS

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Info about Nova

Current Status: Returning Series

Network: PBS

Genres: Documentary