X-37B spaceplane wins Collier Trophy for advancing ‘the boundaries of flight and space exploration’
The Air Force’s X-37B Orbital Test Vehicle Mission 5 successfully landed at NASA’s Kennedy Space Center Shuttle Landing Facility, Fla., Oct. 27, 2019. The X-37B OTV is an experimental test program to demonstrate technologies for a reliable, reusable, unmanned space test platform for the U.S. Air Force. (Courtesy photo)
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