Mars Was Wet – Maybe Even Habitable

2 December 2004: Reports Detail NASA Rover Discoveries of Wet Martian History

“The most dramatic findings so far from NASA’s twin Mars rovers — telltale evidence for a wet and possibly habitable environment in the arid planet’s past — passed rigorous scientific scrutiny for publication in a major research journal. Eleven reports by 122 authors in Friday’s issue of the journal Science present results from Opportunity’s three- month prime mission, fleshing out headline discoveries revealed earlier.”