08-29-2013, 08:57 AM
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Too lazy to set a custom title
Industry Role:
Join Date: Oct 2006
Location: Vancouver
Posts: 30,985
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Quote:
Originally Posted by $5 submissions
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Quote:
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Other theories about how life began on Earth suggest that water, the key ingredient, was brought by comets, famously dubbed "dirty snowballs," which comprise ice and dust left from the building of the Solar System.
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