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The next launch of the U.S. Air Force’s X-37B unmanned reusable spaceplane will occur “no earlier than September,” launch vehicle provider SpaceX said Aug. 14.The Air Force had previously indicated that the launch would occur “no earlier than August,” but it cautioned that the launch date was “still in the process of being manifested on the range schedule.”The mission, the fifth for the Boeing [BA]-built Orbital Test Vehicle, will launch from Launch Complex 39A at NASA's Kennedy Space Center in…
