The test flight of the XB-1 aircraft is a step in manufacturer Boom Supersonic's goals of building a supersonic passenger jet ...

Commercial supersonic jets could grace the skies once again after Boom Supersonic's XB-1 jet broke the sound barrier in test ...

The Denver company said the plane will be capable of speeds up to 1.7 times the speed of sound, or about 1,300 ... for Atmosphere Research, said the Boom jet appears targeted at business flyers ...

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 ...

The XB-1 is a pint-sized testbed for the Overture: a next-generation supersonic airliner developed by ambitious US startup ...

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 demonstrator is set to exceed Mach 1 (770 mph) in a series of four-minute runs above the Mojave Desert ...

A US company's prototype jet has broken the sound barrier in a demonstration it hopes will pave the way for a successor to the Concorde. Boom Supersonic's XB-1 is the first civilian aircraft to ...

U.S. startup Boom Supersonic sent its XB-1 jet through the sound barrier on Tuesday. It says the test flight over the Mojave Desert marked the first time any privately funded plane has hit the ...