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NOVA
Ancient Earth: Birth of the Sky
Season 50
Episode 11
Early Earth was a hellscape of molten lava and barren rock, bombarded by meteors, with no atmosphere at all. How did our familiar blue sky – the thin, life-giving band of gasses protecting our planet – come to be?
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53:21
Explore mysterious 9,000-year-old Stone Age megastructures found in the Arabian Desert.
53:32
Discover how two revolutionary ancient inventions changed the course of humanity forever.
53:25
Follow ancient humans’ journey into an icy and perilous new land.
53:27
Discover how Homo sapiens outlasted Neanderthals – and how they helped make us who we are today.
53:25
Follow Homo sapiens as they venture out of Africa and spread farther than any other human species.
53:32
Trace the remarkable origin story of Homo sapiens and the crucial moments that shaped our species.
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53:27
Forensic science is put to the test after the first-ever staged multi-vehicle pileup.
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53:29
A first-of-its-kind experiment aims to stage a multi-vehicle pileup to gain new data on car safety.
1:36:42
After centuries of pseudoscience, researchers examine the causes of racial health disparities.
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53:41
Follow scientists in a quest to understand how complex forest ecosystems can help cool our planet.
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53:39
Explore key military technologies in the American colonies’ fight for freedom.
53:32
Follow the investigation into the deadly container ship collision that closed the Port of Baltimore.