Martian salts must touch ice to make liquid water, study shows

In chambers that mimic Mars’ conditions, researchers have shown how small amounts of liquid water could form on the planet despite its below-freezing temperatures. Liquid water is an essential ingredient for life as we know it. Mars is one of the very few places in the solar system where scientists have seen promising signs of it — in gullies down crater rims, in instrument readings, and in Phoenix spacecraft self portraits that appeared to show wet beads on the lander’s leg several years ago.

from Space & Time News — ScienceDaily http://ift.tt/1xjt5Gk

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