The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave ...

Boom Supersonic's XB-1 test vehicle is scheduled to lift off today (Jan. 28) at 11 a.m. EST (1600 GMT). Editor's note: Boom Supersonic successfully broke the sound barrier with the XB-1 today in a ...

Ten months after its long-delayed first subsonic flight took place last March, Boom Supersonic’s prototype test plane, the XB-1, broke the sound barrier today three times during its 12th flight.

Boom Supersonic plans to break the sound barrier during a test flight this morning (Jan. 28). This would mark the first time the company achieves the feat, and you can watch the historic action live.

Boom Supersonic chief test pilot Tristan "Geppetto" Brandonburg flew the jet. The company has described the XB-1 as the "first American civil supersonic jet" and the "foundation" for Overture ...

The debut supersonic flight by Boom Supersonic happened earlier this week, and the company showcased how its XB-1 test aircraft achieved ... only 40 minutes if these vehicles can achieve Mach ...

The XB-1 is one-third the size of the planned 64- to 80-passenger Overture airliner that Boom intends to begin test flying before the end of the decade. Boom will make one more supersonic test ...

Boom Supersonic is one step closer to launching the spiritual heir to the Concorde. The US firm's XB-1 prototype reached a transonic speed of Mach 0.95 during Test Flight 11 on January 10 ...

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

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 ...

Tech companies developing self-driving vehicle technology have tapped the brakes on testing on California’s public roads, according to new data from the state’s Department of Motor Vehicles.