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Videos / Documentaries / Carl Sagan's COSMOS







Carl Sagan's COSMOS
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Carl Sagan's COSMOS
How large is the Earth compared to the universe as a whole? How long have life and humans existed on Earth compared to the age of the universe? This segment of Carl Sagan's Cosmos answers these questions and quite a few more.


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Rating: 3.0 / 5 (926 votes)
Posted by Averusblack on December 11, 2010
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