It looks like ice on Mars: NASA scientists think the bright chunks must be ice.Courtesy NASA/JPL-Caltech/University of Arizona/Texas A&M UniversityA few days ago on Mars, the robotic scoop on NASA’s Phoenix Lander uncovered some white, dice-sized chunks of material in a trench it was digging. Today, some of those same bright chunks are nowhere to be seen leading NASA scientists to think they were ice that has since evaporated.

"These little clumps completely disappearing over the course of a few days, that is perfect evidence that it's ice,” said Principal Investigator Peter Smith of the University of Arizona, Tucson. There had been some question whether the bright material was salt. Salt can't do that."

Check out the official ASU Phoenix site for some cool (pun intended) photos and more information about the mission.

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More info on NASA site