Boom Supersonic’s XB-1 has broken the sound barrier, paving the way for faster commercial flights if future tests succeed.

Boom Supersonic, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for ...

Boom Supersonic’s proposed commercial jet. Overture is intended to seat 64-80 passengers, and complete international trips at speeds as fast as Mach 1.7. That’s around twice the speed of today ...