OK, we admit, we're a long way from a carbon-free grid—but when we have one, what's the most efficient way to use that energy ...

Boom Supersonic’s XB-1 aircraft broke the sound barrier during three test runs, a step toward the possible return of ...

Boom Supersonic has gone, well, supersonic, its XB-1 prototype breaking the sound barrier today in the skies over the Mojave Air & Space Port in California. With Chief Test Pilot Tristan Brandenburg ...

Boom Supersonic's XB-1 made history on Tuesday by becoming the first civil aircraft to break the sound barrier. Before ...

We visited Boom Supersonic's hangar in Mojave, California, as the company prepared to break the sound barrier with its XB-1 ...