After spending more than a year orbiting our planet on a hush-hush mystery mission, the U.S. Air Force's X-37B space plane is due to return to Earth any day now. Air Force officials haven't announced ...
SpaceX has secured a contract to launch the uncrewed X-37B spaceplane, a secret military spacecraft created by the U.S. Air Force that's kind of like a compact space shuttle, but whose functional ...
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