The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier, according ...

American company Boom achieved a milestone Tuesday as its XB-1 aircraft exceeded the speed of sound for the first time during a supersonic test flight. The last flight of a supersonic airliner, ...

Boom Supersonic’s XB-1 demonstrator plane just went supersonic in the skies over California’s Mojave Desert, making it the first civil aircraft to break the sound barrier. The American startup ...

Boom Supersonic's XB-1 has successfully broken the sound barrier, becoming the first supersonic civil aircraft in U.S. history. Today (Jan. 28), the XB-1 took off from Mojave Air and Space Port in ...

The first-ever supersonic flight of Boom’s XB-1 test plane is set to take place at the Mojave Air & Space Port in Mojave, California, at at 7:45 a.m. PT (10:45 a.m. E.T) on Tuesday, January 28, though ...

XB-1 is Boom's technology demonstrator aircraft and the world's first independently developed supersonic jet. The aircraft ...

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