Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...

A prototype of a passenger jet meant to succeed Concorde will attempt to break the sound barrier for the first time on ...

An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier.

If successful, it could pave the way for the first US-built commercial supersonic jet to enter the market, reigniting the ...