The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave ...

During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a ...

That speed is equivalent to 750 miles per hour. It marks the first time an independently developed jet has broken the sound barrier, Boom Supersonic said, and the plane is the "first supersonic jet ...

American firm Boom Supersonic’s XB-1 has once again reached supersonic speeds without producing an audible boom, following ...

Colorado company Boom Supersonic plans to break the sound barrier with its test plane XB-1 during a test flight this morning, with the flight due to be streamed live online ...

Boom Supersonic passed a major milestone last month when its XB-1 prototype became the first civil aircraft to break the ...

Ten months after its long-delayed first subsonic flight took place last March, Boom Supersonic’s prototype test plane, the XB-1, broke the sound barrier today three times during its 12th flight.

Boom Supersonic passed a major milestone with its first experimental flight to reach Mach 1. The speed was achieved about 11 minutes into the test.

About 35,000 feet (10,670 meters) over the Mojave Desert, northwest of Los Angeles, Boom Supersonic's XB-1 became the first ...

Boom Supersonic has gone, well, supersonic, its XB-1 prototype breaking the sound barrier today in the skies over the Mojave Air & Space Port in California. With Chief Test Pilot Tristan Brandenburg ...

Boom Supersonic now says Overture can avoid sonic booms, potentially opening up overland flights even at Mach 1 or higher.

A 'new Concorde' has broken the sound barrier - the Boom XB-1 test plane was launched from California's Mojave Air and Space Port and reached supersonic speeds of Mach 1.1 ...