A Colorado-based company said it broke the sound barrier three times without generating a sonic boom that reached the ground.

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

Aerospace startup Boom says they've proven quiet supersonic flight is possible with their passenger airplanes after a successful second test flight.

During the second supersonic flight of the XB-1 technology demonstrator today, the jet exceeded Mach 1 three times without a ...

Boom Supersonic now says Overture can avoid sonic booms, potentially opening up overland flights even at Mach 1 or higher.

The same ocean that once brought prosperity to Stone Town now poses an existential threat, as rising sea levels and extreme ...