RT @MarsCuriosity: YES! I found NO3! Biologically-…

March 24th, 2015 by Ciarán Leave a reply »

RT @MarsCuriosity: YES! I found NO3! Biologically-useful nitrogen, that is. Another sign ancient Mars=habitable go.nasa.gov/19N1Bml http://t.co/bfNJB3jx9w

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