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Organic carbon from Mars, but not biological

( -- Molecules containing large chains of carbon and hydrogen--the building blocks of all life on Earth--have been the targets of missions to Mars from Viking to the present day. While these molecules have previously ...

dateMay 24, 2012 in Space Exploration
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Where does all the gold come from?

Ultra high precision analyses of some of the oldest rock samples on Earth by researchers at the University of Bristol provides clear evidence that the planet's accessible reserves of precious metals are the result of a bombardment ...

dateSep 07, 2011 in Earth Sciences
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