Sierra Space and Radian are developing spaceplanes that fly at hypersonic speeds, but are able to head into Low Earth Orbit ...

NASA captures a historic image of the XB-1 supersonic jet breaking the sound barrier without a loud boom, marking a breakthrough.

A "son of Concorde" aircraft that may one day fly from New York to London in 1.5 hours has reached supersonic speeds. An ...

But while the successful test flight of XB-1 shows that supersonic flight without sonic booms is technically feasible, the ...

Sonic booms have long been a barrier to overland supersonic flights. The Concorde was banned from virtually every country in the world because of the thundering noise. Only the US, Great Britain, and ...

NASA has captured an image of a supersonic civilian jet breaking the sound barrier during a test flight over the Mojave ...

The silhouette of Boom's plane streaking across the sky is rendered in vivid shades of orange with the jet exhaust a pale ...

A "son of Concorde" aircraft that may one day fly from New York to London in 1.5 hours has reached supersonic speeds. An ...

Boom Supersonic's XB-1 jet has broken the sound barrier in a stunning image captured by NASA, as the company says it's the ...

NASA and Boom Supersonic release a stunning photo of the XB-1 jet breaking the sound barrier, showcasing the future of faster ...

In a stunning, glowing image, NASA has captured the moment that Boom Supersonic’s XB-1 demonstrator broke the sound barrier ...