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 ...

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. On its 12th test flight, the Boom XB-1 prototype broke the sound barrier ...

“XB-1’s supersonic flight demonstrates that the technology for passenger supersonic flight has arrived,” said Boom’s founder Blake Scholl. “A small band of talented and dedicated ...

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 ...

Boom Supersonic's XB-1 aircraft broke the sound barrier during a test flight in California. The company conducted its 12th test flight of the demonstrator aircraft, pushing the limits as it was ...

Boom Supersonic’s XB-1 aircraft broke the sound barrier for the first time ever on Tuesday, ushering in a new era of supersonic flight. The jet exceeded Mach 1 after taking off from the Mojave ...

American aerospace startup Boom Supersonic achieved a historic milestone by breaking the sound barrier with its XB-1 demonstrator jet. The monumental test flight was broadcast live from California ...

Boom Supersonic achieved Tuesday its goal of breaking the sound barrier on its first attempt with the XB-1 prototype of its Overture aircraft — and then repeated the feat two more times.

The airspace in which Boom Supersonic complete its test holds historic significance—known as the Bell X-1 Supersonic Corridor, the area is named after the first plane to break the sound barrier ...