The first dreams of supersonic air travel were crushed by annoyed Oklahoma City residents in the 1960s. Decades later, it ...

When the experimental XB-1 aircraft broke the sound barrier three times during its first supersonic flight on 28 January, it did not produce a sonic boom audible from the ground, according to US ...

Boom Supersonic, a commercial aviation company behind the sonic boom-less XB-1, posted an image showing its experimental plane breaking the sound barrier. Captured during a successful test flight ...

When the experimental XB-1 aircraft achieved supersonic speeds on a test flight, it did not create a disruptive sonic boom – thanks to a physics phenomenon called the Mach cutoff ...