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.

Boom Supersonic made history today (Jan. 28) when its XB-1 jet broke the sound barrier for the first time.

Boom Supersonic plans to break the sound barrier during a test flight this morning (Jan. 28). This would mark the first time ...

Boom is convinced it can overcome the barriers that grounded the Concorde and make supersonic travel affordable and greener.

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Before ...

US company Boom has broken the sound barrier during a test flight of its prototype aircraft XB-1. The test opens the way for ...

A supersonic jet built by Boom Technology broke the sound barrier for the first time Tuesday, advancing its bid to resurrect ...