While the plane’s engines were still audible on the ground, surpassing the Mach cutoff ensured no one heard a disruptive sonic boom. According to the company’s February 10th announcement ...

and the company did it with no audible sonic booms on the ground. The Boom Supersonic XB-1 (pictured here in an earlier flight) flew Mach 1.122 in Boomless Cruise ... no one on the ground could ...

NASA also gathered sound data from the test flight. Boom Supersonic analyzed the data and found that no audible sonic boom reached the ground. This is notable, because supersonic flights that make ...

The explosion-like sound of a sonic boom was recorded by a doorbell camera ... novices after a fox got into the duck enclosure. The robots are part of a 105-key organ and can be seen miming ...