Tuesday, August 27, 2019

Air Force's mysterious spacecraft sets record for time in space


The X-37B Orbital Test Vehicle in the encapsulation cell at the Astrotech facility in April 2010, in Titusville, Fla. Air Force officials are scheduled to launch the X-37B April 21, 2010, at Cape Canaveral Air Station, Fla. The X-37B is the U.S.'s newest and most advanced unmanned re-entry spacecraft. (Courtesy photo) (Photo by DoD/Corbis via Getty Images)

The US military has launched five uncrewed X-37B spaceplanes into orbit over the past decade, and each flight has been longer than its predecessor

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