Boom Supersonic’s X-B1 Plane Breaks Sound Barrier, Bringing Supersonic Travel Closer to ...
The aerospace company put its technology to the test today, breaking the sound barrier and reviving the dream of supersonic ...
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NASA's new supersonic X-59 jet hits the afterburner (photos)
Lockheed Martin has been building the X-59 for NASA, as part of a project to develop a "quiet" supersonic aircraft that can break the sound barrier without producing the thunderous sonic booms ...