** Article Suggestions **
 
Water in the Solar System: (http://adsabs.harvard.edu/abs/2008ARA%26A..46...57E).
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The evidence for and against astronomical impacts on climate change and mass extinctions: A review
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http://www.mpia-hd.mpg.de/homes/calj/astimpact_ija.pdf
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** Article suggestions **
Anytime