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Boom Supersonic plans to break the sound barrier during a test flight this morning (Jan. 28). This would mark the first time ...

Boom Supersonic’s XB-1 demonstrator plane just went supersonic in the skies over California’s Mojave Desert, making it the first civil aircraft to break the sound barrier. The American startup ...

Editor’s note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get news about destinations, plus the latest in aviation, food and drink, and where to stay. The return of ...

Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about 750 mph ...

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After 10 months of flight testing, Boom Supersonic has announced that it will make the first supersonic flight of its XB-1 prototype tomorrow at 7:45 am PST in the skies over the Mojave Desert in ...

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 ...

Boom Supersonic's XB-1 is the first civilian aircraft to achieve the feat since the British-French supersonic airliner, which was retired in 2003. The XB-1 broke the sound barrier for the first ...

Boom Supersonic is an American startup company based in Colorado. Its XB-1 is a one-third-scale demonstrator of a 64-passenger supersonic airliner—dubbed "Overture"—that Boom wants to ...

Boom Supersonic passed a major milestone Tuesday on its path to reintroduce supersonic commercial flights. After years of testing and refinement, a pilot flying the aerospace company’s XB-1 ...