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A Moment of Science

Posts tagged Columbia

January 9, 2007

 

a microimage of nematodes

Exogenesis

What is exogenesis? Is it possible that life on earth did not begin here... on earth?

January 16, 2004

 

Reentry Heat

Why does a space shuttle get hotter on reentry than on liftoff? Find out on this Moment of Science.

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