The aircraft, which climbed to an altitude of 35,290 feet before reaching a top speed of Mach 1.122 (750 miles per hour) also broke the sound barrier ... vision system for landing visibility.

American aerospace startup Boom Supersonic achieved a historic milestone by breaking the sound barrier with its XB-1 demonstrator jet. The monumental test flight was broadcast live from California ...

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Almost 22 years after Concorde made its final commercial flights, a prototype passenger jet has broken the sound barrier during a supersonic test flight. Boom Supersonic founder and CEO Blake ...

A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday ... and a crowd of delighted onlookers. The XB-1 aircraft accelerated to Mach 1.05 within ...

A sleek white aircraft became the first independently developed jet to break the sound barrier Tuesday, tearing through the air tens of thousands of feet above the Mojave Desert and a crowd of ...

About 35,000 feet (10,670 meters) over the Mojave Desert, northwest of Los Angeles, Boom Supersonic's XB-1 became the first privately funded airplane to break the sound barrier during a test ...

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Before Tuesday, no civil private manufacturer had passed the sound barrier with an ...