"Perfect Evidence" ICE on Mars!

phoenix.lpl.arizona.edu — "It must be ice," said Phoenix Principal Investigator Peter Smith of the University of Arizona, Tucson. "These little clumps completely disappearing over the course of a few days, that is perfect evidence that it's ice. There had been some question whether the bright material was salt. Salt can't do that." Jun 20, 2008 View in Crawl 4