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 ...

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.

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

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 ...

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.

Boom is convinced it can overcome the barriers that grounded the Concorde and make supersonic travel affordable and greener.

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 supersonic commercial jet company with ambitious plans in North Carolina is set to break the sound barrier within a week.

"She was real happy supersonic," Boom Chief Test Pilot Tristan "Geppetto" Brandenburg said after landing, in a video posted ...