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.

The XB-1 aircraft accelerated to Mach 1.05 within about 11 minutes of taking off, according to Boom Supersonic and live video ...

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

A Carnegie Mellon University grad is behind the successful flight earlier this week of the first independently developed jet to break the sound barrier.

Boom's Supersonic XB-1 jet became the “world’s first independently developed supersonic jet” to break the sound barrier ...

The location was symbolic, as it was the same California airspace where Chuck Yeager broke the sound barrier for the first time in 1947 in the Bell X-1, a rocket engine–powered aircraft that was ...

The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier ... a prototype aircraft that many tout as the Concorde’s successor ...