2013: The Year in Space (52 images)

Top photos of 2013 for the year in space news and exploration.
Updated: Dec. 23, 2013 at 11:37 AM
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This NASA image taken on February 3, 2013 shows a self-portrait of NASA's Mars rover Curiosity created by a combination of dozens of exposures taken by the rover's Mars Hand Lens Imager (MAHLI), on the surface of Mars, February 20, 2013. UPI/NASA
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