Flown by Boom Supersonic’s chief test pilot, Tristan “Geppetto” Brandenburg, the aircraft called XB-1 reached an altitude of 35,290 feet before accelerating to Mach 1.122, or 750 mph ...

Editor’s note: Sign up for Unlocking the World, CNN Travel’s weekly newsletter. Get news about destinations, plus the latest in aviation, food and drink, and where to stay. The return of ...

Boom Supersonic passed a major milestone Tuesday on its path to reintroduce supersonic commercial flights. After years of testing and refinement, a pilot flying the aerospace company’s XB-1 ...

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 ...

Here’s how it works. Boom Supersonic made history today (Jan. 28) when its XB-1 jet broke the sound barrier for the first time. Boom Supersonic's chief test pilot Tristan "Geppetto" Brandenburg ...

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's ...