2012: The year in space (36 images)

From Solar storms to the retiring of the Shuttles "Atlantis" and "Discovery", this constantly updated collection features the top space news photos of 2012.
Updated: Dec. 20, 2012 at 10:58 AM
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This undated NASA composite image shows the central region of the spiral galaxy NGC 4151. X-rays (blue) from the Chandra X-ray Observatory are combined with optical data (yellow) showing positively charged hydrogen (H II) from observations with the 1-meter Jacobus Kapteyn Telescope, December 31, 2011. UPI/NASA
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