SpaceShipTwo rocket plane's builders begin closely watched test flight [ Mon, 29 Apr 2013 14:48:54 GMT ] Virgin Galactic's SpaceShipTwo rocket plane rose into the air beneath its WhiteKnightTwo mothership on Monday, beginning a test flight that could mark its first rocket-powered, supersonic step toward outer space.The mission began with the paired planes' takeoff from Mojave Air and Space Port. Virgin Group's billionaire founder, Richard Branson, was closely watching the proceedings. "Occasionally y...
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