Photos: Cool images from Mars
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Credit: AFP/Getty Images
-, SPACE: In this image released by NASA 22 February, 2004 the Mars Exploration Rover Spirit casts a shadow over the trench that it is examining with tools on its robotic arm. Spirit dug the trench with its left front wheel the preceding sol. AFP PHOTO/NASA/JPL (Photo credit should read NASA/JPL/AFP/Getty Images)
