SPACE PHOTOS THIS WEEK: Kepler Launch, Mars Moon, More

SPACE PHOTOS THIS WEEK: Kepler Launch, Mars Moon, More
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February 21, 2009--The HiRISE camera aboard NASA's Mars Reconnaissance Orbiter snapped this "glamour shot" of the Martian moon Deimos, the smaller of the red planet's two natural satellites. The high-resolution orbiting camera took pictures of the bigger moon, Phobos, last March.

Deimos appears mostly smooth due to a covering of powdery rock called regolith, which is reddish in this color-enhanced picture. The surface around fresh impact craters appears less red because regolith in these areas hasn't been exposed to the space environment for as long.

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—Image courtesy NASA/JPL/University of Arizona
 
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