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Could Rosetta unlock Earth's secrets?
The European Space Agency's 'Rosetta' aims to find out if life on Earth began with the help of comet seeding.
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Could Rosetta unlock Earth's secrets?
The European Space Agency's 'Rosetta' aims to find out if life on Earth began with the help of comet seeding.
Date: 8/1/14
Views: 184908
Video by:  CNN
 
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