Investigators on Thursday were trying to determine how a driver went through a sound barrier on Interstate 55 in Romeoville, ...

An American civil aircraft broke the sound barrier for the first time in California's Mojave Desert, a US aviation company ...

An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week. The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during a test ...

When it comes to highway sound barriers, pre-cast concrete has remained the industry standard because of a lack of acceptable, cost-effective alternatives. However, the Pennsylvania Turnpike ...

Boom Supersonic makes aviation history as XB-1 breaks the sound barrier. XB-1 is the first civil supersonic jet made in America. Photo: Boom Boom’s XB-1 demonstrator aircraft just broke the sound ...

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 flown ...

MOJAVE, Calif. -- The return of supersonic travel has been remarkably slow for something faster than the speed of sound, but a major milestone was achieved Tuesday when Boom Supersonic completed its ...

Boom Supersonic broke the sound barrier in late January with its XB-1 test jet, paving the way forward in the startup's efforts to build its own supersonic airliner. Boom and NASA released a unique ...

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. On its 12th test flight, the Boom XB-1 prototype broke the sound barrier ...