American aerospace startup Boom made history on Tuesday by breaking the sound barrier during the test flight ... of 35,290 feet and accelerating to speed Mach 1.122, or about 750 mph, according ...

Boom Supersonic has an impressive new speed record in its latest test flight ... a fundamental step in preparing XB-1 to break the sound barrier something that may happen in future flights as ...

Editor's note: Boom Supersonic successfully broke the sound barrier with the XB-1 today in ... the piloted demonstrator craft will exceed Mach 1 — the speed of sound — about 25 minutes later.

Boom Supersonic’s XB-1 aircraft broke the sound barrier for the first time ever ... has ever reached the staggering speed. Boom Supersonic chief test pilot Tristan "Geppetto" Brandonburg flew ...

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 ...

The test plane, flown by chief test pilot Tristan `Geppetto’ Brandenburg, pushed through the sound barrier at around 8:30am local time in a four-minute high speed run through a specially ...

Humankind was once determined to break the sound barrier, as it was considered the ultimate achievement in speed. But our technology didn't stop there, as we've built experimental vehicles that ...

In the sky, you can tell your speed by the clouds.” Col. Thomas Drake, too, has never flown supersonic commercially, but has broken the sound barrier in five different fighter aircraft during ...