NOVA S50E12: Ancient Earth: Frozen
- Aired: 2023-10-11
- Time: 21:00:00
- Runtime: 60 minutes
Overview
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.