In 2015, NASA's Chandra X-ray Observatory celebrated its own "sweet 16." July 23rd marked Chandra's birthday, as it was launched aboard the Space Shuttle Columbia and then deployed into space on this day sixteen years ago. In August 2015, Chandra passed the 16th anniversary of another milestone in the mission—the release of the "First Light" images from the telescope (Illustration: NASA/CXC/M.Weiss)
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