Monday, March 30, 2009

Ice on Mars

Formed sometime between January and September 2008, this fresh crater has dredged up barely buried water ice and splashed it onto the Martian surface. The HiRISE camera aboard NASA's Mars Reconnaissance Orbiter recorded this colour close-up image on 1 November 2008. The scene is about 30 metres across. (Image: NASA/JPL/University of Arizona)

Several small space rocks that hit Mars in 2008 blasted away topsoil to reveal a layer of water ice lying just below the planet's surface.

Subsurface ice on Mars exposed by recent impacts

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