'Antifreeze' key to life on Mars?

An "antifreeze" chemical in Martian soil could allow pockets of life-sustaining liquid water to exist on the Red Planet, say scientists.
Last year the American space agency Nasa's Phoenix lander made the surprise discovery of perchlorates in Martian soil. Full story:

http://www.google.com/hostednews/ukpress/article/ALeqM5gjizqUuH45__vlZ5X0-1qjr17syg

* Blue Sky and Life on Mars!:

http://cristiannegureanu.blogspot.com/2009/02/blue-sky-and-life-on-mars.html