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Life's Rocky Start

Season 43 Episode 2 | 53m 7s

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Four and a half billion years ago, the young Earth was a hellish place—a seething chaos of meteorite impacts, volcanoes belching noxious gases, and lightning flashing through a thin, torrid atmosphere. Then, in a process that has puzzled scientists for decades, life emerged. But how? NOVA joins mineralogist Robert Hazen as he journeys around the globe.

Aired: 01/13/16 | Expired: 05/30/18 | Rating: TV-G

National Corporate funding for NOVA is provided by Brilliant.org. Major funding for NOVA is provided by the NOVA Science Trust, the Corporation for Public Broadcasting, and PBS viewers.

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