Previews + Extras
Ancient Earth May Have Had Red Oceans
S50 E11 - 3m 34s
How did oxygen escape from the oceans to form Earth’s atmosphere and create breathable air? Rust played a critical role in the process.
Ancient Earth Was a Hellscape
S50 E11 - 3m 9s
For millions of years, ancient Earth was a fiery hellscape of volcanic activity, totally inhospitable to life. See what our planet might have looked like before the atmosphere—a ball of rock and fire hurtling through space.
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