Boom Supersonic's XB-1 achieved a milestone by successfully breaking the sound barrier on a test flight, marking the first ...

On its 12th test flight, the Boom XB-1 prototype broke the sound barrier three times and achieved a top speed of Mach 1.1.

Boom Supersonic's XB-1 jet just broke the sound barrier. Achieving Mach 1.112 is a milestone for the aerospace brand, which ...

During its flight, which went supersonic around 11 minutes and 30 seconds after take-off, XB-1 was followed by two chase ...

Denver-based Boom Technology's XB-1 demonstrator plane hit Mach 1.122 — 750 mph. It's the first independently developed ...

The test flight of the XB-1 aircraft is a step in manufacturer Boom Supersonic's goals of building a supersonic passenger jet ...

The pilot was later charged with driving under the influence, records from the local sheriff's office show.

A supersonic jet built by Boom Technology broke the sound barrier for the first time Tuesday, advancing its bid to resurrect ...