Editor's note: Boom Supersonic successfully broke the sound barrier with the XB-1 today in a major milestone. Read our coverage here. Boom Supersonic plans to break the sound barrier during a test ...

And the test also the culmination of years of work for Boom, which began operations in 2014 and, against much industry skepticism, has become the first U.S. independent company to join the ...

American aerospace startup Boom made history on Tuesday by breaking the sound barrier during the test flight of its Boom Supersonic XB-1 demonstrator jet. The XB-1's flight, livestreamed from the ...

XB-1 pushed what was once called the Sound Barrier. According to Boom, this was a key milestone in the test program because this dynamic pressure has a serious effect on aircraft performances and ...

The City of Duluth Parks and Recreation Department will put up a temporary snow barrier at the Piedmont Ski Trails “to prevent unauthorized motor vehicle access.” Staff say it’s in response ...

Editor's note: Boom Supersonic successfully broke the sound barrier with the XB-1 today in a major milestone. Read our coverage here. Boom Supersonic plans to break the sound barrier during a test ...

A US company's prototype jet has broken the sound barrier in a demonstration it hopes will pave the way for a successor to the Concorde. Boom Supersonic's XB-1 is the first civilian aircraft to ...

This achievement makes it the first civilian aircraft to break the sound barrier. Thousands observed the flight. Just 12 minutes of flight was enough for the XB-1 Boom Supersonic pilot to exceed ...

The countdown has begun for the XB-1’s “historic” first supersonic test flight that should break the sound barrier, according to Boom Supersonic. The test flight for the Boom Supersonic XB-1, a ...

Boom Supersonic's XB-1 demonstrator jet became the first U.S.-made civilian supersonic jet to break the sound barrier. The independently funded XB-1 reached a speed of Mach 1.122, or about 750 mph ...

A US company's prototype jet has broken the sound barrier in a demonstration it hopes will pave the way for a successor to the Concorde. Boom Supersonic's XB-1 is the first civilian aircraft to ...