When Boom Supersonic's XB-1 broke the sound barrier last month, it achieved commercial supersonic flight for the first time since the Concorde. It also did it without an audible sonic boom ...

Boom Supersonic passed a major milestone last month when its XB-1 prototype became the first civil aircraft to break the sound barrier over the continental US. Less than a month later, Chief Test ...

Supersonic passenger jet startup says quiet supersonic flight within reach, which would be a major breakthrough for the Denver startup that will build its jets in Greensboro. The lack of a sonic ...

Boom Supersonic independently designed and built the XB-1, the first civil supersonic jet in America. The XB-1's first supersonic flight last month was a success, breaking the sound barrier above ...

Boom, the startup developing a new generation of supersonic aircraft, has achieved a major milestone after its test plane broke the sound barrier for the first time. The XB-1 “Baby Boom” piloted by ...