A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday, tearing through the ...

By achieving a top speed of Mach 1.1, Boom Supersonic has broken records and is on course to revive supersonic passenger ...

On its 12th test flight, the Boom XB-1 prototype broke the sound barrier three times and achieved a top speed of Mach 1.1.

Editor's note: Boom Supersonic successfully broke the sound barrier with the XB-1 today in a major milestone. Read our coverage here. Boom Supersonic plans to break the sound barrier during a test ...

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 ...

During the XB-1's historic flight on Tuesday—its 12th test flight overall—the aircraft stayed supersonic for around four minutes before breaking the sound barrier two more times during the ...

The aerospace company put its technology to the test today, breaking the sound barrier and reviving the dream of supersonic ...

Boom Supersonic's XB-1 demonstrator craft could become the first commercial jet to break the sound barrier since Concorde after acing its 11th test and reaching 0.95 Mach at low altitudes.

The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier, according ...

Boom Supersonic plans to break the sound barrier during a test flight this morning, with the flight due to be streamed live online. If the test is successful, it will mark the first time the ...