"Chuck" Yeager became the first human to break the sound barrier, using the Bell X-1 "Glamorous Glennis" rocket plane. The XB ...

Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about 750 mph ...

Boom Supersonic's XB-1 aircraft broke the sound barrier during a test flight in California. The company conducted its 12th test flight of the demonstrator aircraft, pushing the limits as it was ...

The XB-1 reached Mach 1.122 when it broke the sound barrier for the first time after about 12 minutes into the flight. Boom Supersonic is an American startup company based in Colorado. Its XB-1 is ...

A supersonic jet built by Boom Technology broke the sound barrier for the first time on Tuesday, advancing its bid to resurrect high-speed passenger flights two decades after the Concorde’s demise.

MOJAVE, Calif. (WGHP) — Only a few more tests remain until Boom Supersonic’s XB-1 aircraft tries in earnest to break the sound barrier. The XB-1 aircraft, described by Boom as “the world’s ...

MOJAVE, Calif. (WGHP) — Boom Supersonic broke the sound barrier on Tuesday, an accomplishment that will send figurative shockwaves to the Piedmont Triad. “XB-1’s supersonic flight ...

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 ...

Boom Supersonic's XB-1 aircraft has broken the sound barrier in a historic test flight over the Mojave Desert in the southwestern US. The XB-1 demonstrator completed its first supersonic flight on ...