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Viewing crescent Mars

(Phys.org)—The sight of the crescent Moon hanging in the sky above Earth is a familiar one, but this image taken by ESA's Rosetta spacecraft as it passed by the Red Planet in February 2007 captures the ...

Oct 02, 2012 5 / 5 (4) 0

When continents formed

A new way to calculate the age of the Earth's crust has been developed by researchers from the University of Bristol and the University of St Andrews.

Jan 13, 2011 3.2 / 5 (5) 2 | with audio podcast