Bok
09-01-2011, 01:13 AM
Dark streaks that grow in spring, fade in winter may point to saltwater on the Red Planet
More... (http://www.sciencenews.org/view/generic/id/333921/title/FOR_KIDS_Possible_new_saltwater_stains_on_Mars)
More... (http://www.sciencenews.org/view/generic/id/333921/title/FOR_KIDS_Possible_new_saltwater_stains_on_Mars)