Last updated on April 16, 2014 at 6:17 EDT
Mars Moon Phobos
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Mars Moon Phobos

January 30, 2010
An image of Phobos by the High-Resolution Stereo Camera on board Mars Express on 22 January 2007.

The larger and inner of the two martian moons is seen here floating just above the martian limb. The image has been enhanced slightly to bring out the detail on the moon.