An aircraft developed by Boom Supersonic has become the first independently funded 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 ...

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

The Colorado-based company is aiming to build a Concorde-like supersonic aircraft—but has hurdles to clear before realizing ...

Boom Supersonic’s XB-1 aircraft has become the first independently developed jet to break the sound barrier, bringing ...

Boom Supersonic's XB-1 demonstrator jet broke the sound barrier at Mach 1.122, reaching an altitude of 35,290 feet at ...

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 ...

Breaking the sound barrier occurs at 761 mph. The manufacturer reached a key milestone June 17 with the construction completion of its $500 million “superfactory” at Piedmont Triad ...

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.

GREENSBORO, N.C. — Tuesday morning in California's Mojave Desert, the Boom Supersonic XB-1 — the world's first independently developed supersonic jet — broke the sound barrier during a test ...

Reader question: For years there has been a political sign on the north-facing side of the sound barrier that runs along Interstate 41 between State 47 and Ballard Road in Appleton. Recently the ...