Aired
October 11, 2023
NOVA
NOVA
Ancient Earth: Frozen #S50E12
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.
Episode 12 of Season 50 from NOVA — available to stream in HD on any device.
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