Evidence Suggests Mars Was Cold and Icy, Not Warm and Wet
Despite premature studies to the reverse , Mars may have been cold and icy , not quick and wet . Anew attempt to modelconditions on the Red Planet 3 - 4 billion years ago privilege a satellite far too insensate to support widespread aerofoil piss . Mars confront planetary scientists with a major puzzler . Today , it is too cold for fluid surface water , at least in anysustained mode ....