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View Full Version : Fresh Mars Impact Craters Blast Ice Onto Surface



Fraser
2009-Mar-31, 02:20 PM
Fresh impact craters on Mars have revealed more evidence of stable ice that's been hiding just beneath the surface all along, say scientists working on images sent back by the HiRISE camera aboard NASA's Mars Reconnaissance Orbiter. The craters appeared sometime between January and September of last year, in areas that had been previously imaged without [...]

More... (http://www.universetoday.com/2009/03/31/fresh-mars-impact-craters-blast-ice-onto-surface/)

marsbug
2009-Apr-01, 01:10 PM
Lookingt at these pictures it's tempting to suggest that these might be some of the most habitable spots on mars: there's ice exposed at the surface, in a region which has pressures above the triple point (not much but according to late martian weather (http://nova.stanford.edu/projects/mgs/late.html) around 7 to 8 millibars), and ground temperatures that can approach zero (site I linked above gives air temperatures before someone calls me on that). If one of these impacts were caused by a rock from earth then we'd have an experimental test of lithopanspermia we couldn't have desiged better ourselves.