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Air Force's Mysterious X-37B Space Plane Breaks Orbital Record

Air Force's Mysterious X-37B Space Plane Breaks Orbital Record | Live Science | March 26, 2017
Technology
Source: Live Science
March 26, 2017
The current mission of the U.S. Air Force's robotic X-37B space plane is now the longest in the clandestine program's history.

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