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 ...

"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 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 ...

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.

Boom, the startup developing a new generation of supersonic aircraft, has achieved a major milestone after its test plane broke the sound barrier for the first time. The XB-1 “Baby Boom ...

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 ...