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Boom Supersonic XB-1 jet breaks sound barrier on historic test flight (video)
Boom Supersonic made history today (Jan. 28) when its XB-1 jet broke the sound barrier for the first time. Boom Supersonic's ...
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Boom: America’s answer to Concorde completes its first supersonic flight
The return of supersonic travel has been remarkably slow for something faster than the speed of sound, but a major milestone was achieved on January 28 when Boom Supersonic completed its first ...