The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave ...

More than 20 years after the death of Concorde, a new contender is set to attempt supersonic speeds in its first test flight later today. Even better, you can watch the action live through a streamed ...

Boom Supersonic plans to break the sound barrier during a test flight this morning (Jan. 28). This would mark the first time ...

So here's something interesting. This might look like an ordinary BMW X1, but take a closer glance – those stickers on the side read "hybrid test vehicle," and around back, there doesn't appear ...

Chalk up another milestone for Stratolaunch, the air-launch venture created by the late Microsoft co-founder Paul Allen: The company’s mammoth airplane deployed a winged test vehicle for its ...

Denver-based Boom Supersonic's XB-1 demonstrator plane, with Chief Test Pilot Tristan "Geppetto" Brandenburg at the controls, hit Mach 1.122, or 750 mph, at an altitude of about 35,000 feet.

Boom Supersonic chief test pilot Tristan "Geppetto" Brandonburg flew the jet. The company has described the XB-1 as the "first American civil supersonic jet" and the "foundation" for Overture ...

Boom Supersonic's XB-1 demonstrator craft could become the first commercial jet to break the sound barrier since Concorde after acing its 11th test and ... in electric vehicles and the rapid ...

Boom Supersonic is one step closer to launching the spiritual heir to the Concorde. The US firm's XB-1 prototype reached a transonic speed of Mach 0.95 during Test Flight 11 on January 10 ...

There's not much to see in the teaser, just a very dimly lit shot of the vehicle ... X1 in Paris, it will likely resemble a stubby shrunken X5. No word on whether or not it'll drive like the ...

Boom Supersonic plans to break the sound barrier during a test flight this morning (Jan. 28). This would mark the first time the company achieves the feat, and you can watch the historic action live.