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

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

A sleek white aircraft has become the first independently developed jet to break the sound barrier. The XB-1 aircraft accelerated to Mach 1.05 within about 11 minutes of taking off Tuesday.

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

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

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

Boom XB-1 broke the sound barrier again at the end of the test campaign. The next step for Boom Supersonic is to develop a ...

Independently developed jet makes new record, adding to its rigorous series of human-piloted test flights that will prepare ...

According to the US company, the most recent and final test flight of XB-1 on February 10 also achieved supersonic speeds ...

An aircraft developed by Boom Supersonic became the first independently funded jet to break the sound barrier this week. The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during ...

"We broke the sound barrier not once, not twice, but actually three times—each time without making an audible sonic boom,” Scholl said on Boom’s livestream. “It’s about how you fly the ...