Bok
09-09-2012, 05:07 PM
Deposits didn’t need flowing water to form, new research suggests
More... (http://www.sciencenews.org/view/generic/id/344133/title/Mars_clays_may_have_volcanic_source)
More... (http://www.sciencenews.org/view/generic/id/344133/title/Mars_clays_may_have_volcanic_source)