A United Launch Alliance Atlas 5 rocket lifted off Dec. 11, 2012 carrying the U.S. Air Force’s X-37B unmanned spaceplane on its second trip to orbit. Credit:SpaceVidsNet
VIDEO | Atlas 5 lofts X-37 Military Spaceplane
A United Launch Alliance Atlas 5 rocket lifted off Dec. 11, 2012 carrying the U.S. Air Force’s X-37B unmanned spaceplane on its second trip to orbit. Credit:SpaceVidsNet
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