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NASA’s First X-Plane is a Bold Step Towards the Resurrection of Supersonic Air Travel

NASA has been on a years-long mission to replace the Concorde, which was decommissioned in 2003 over concerns that it was uneconomical and too loud. But the agency's new series of bullet-shaped “X-planes” could make the super-high-speed phoenix rise from Concorde's ashes. Read More >>