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

A sleek white aircraft has become the first independently developed jet to break the sound barrier. The XB-1 aircraft ...

The test flight took place in the same Mojave Desert area in California where Charles "Chuck" Yeager first broke the sound ...

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Before ...

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

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.

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.

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 ...