On a clear morning over the Mojave Desert, a small, dart-shaped jet called XB-1 punched through the sound barrier and kept climbing. The aircraft, built by Denver-based startup Boom Technology, became ...

Add Yahoo as a preferred source to see more of our stories on Google. Boom Supersonic is one step closer to launching the spiritual heir to the Concorde. The US firm's XB-1 prototype reached a ...

Add Yahoo as a preferred source to see more of our stories on Google. The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier, according to ...

A civilian jet broke the sound barrier three times during a test flight in California’s Mojave Desert on Tuesday, the first time a privately developed and built aircraft has accomplished such a feat.

After 10 months of flight testing, Boom Supersonic has announced that it will make the first supersonic flight of its XB-1 prototype tomorrow at 7:45 am PST in the skies over the Mojave Desert in ...

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 ...

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 ...

The return of supersonic travel has been remarkably slow for something faster than the speed of sound, but a major milestone was achieved on January 28. Boom Supersonic, the American company building ...