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25th anniversary of NASA's Hubble (36 images)

Celebrate the Hubble Space Telescope's 25th year in orbit.
Updated: April 24, 2015 at 10:49 AM
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This June 9, 2005 NASA false-color picture shows the supernova remnant of Cassiopeia A. This image is made up of images taken by NASA's, Spitzer Space Telescope, Hubble Space Telescope and the Chandra X-ray Observatory. UPI/NASA
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