The Clean Room

Cosmos: A Space-Time Odyssey: Season 1: Episode 7

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Cosmos: A Spacetime Odyssey
The Clean Room

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FOX | National Geographic Channel | Air Date: April 20, 2014
Summary: The tempestuous youth of the Earth effectively erased all traces of its beginnings. How did we ever learn its true age?
Genre(s): Documentary, Science, Educational
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