Posted by jburk to Planetology at August 9, 2011 08:43 AM

Claims of water on Mars have been made before, but a new discovery of potential liquid water on the Red Planet's surface last week is still making waves in the science world. What differentiates the new find from previous discoveries is the fact that it's the strongest evidence yet for liquid water, as opposed to ice, and it's on the Martian surface, as opposed to miles underground where it would be difficult to verify its presence.