Boom Supersonic’s XB-1 jet became the first independently developed aircraft to break the sound barrier in the Mojave Desert on Tuesday. The test flight marks a milestone in Boom’s effort to revive ...

So while XB-1 didn't break the Sound Barrier, it came very close ... The flight path that the Black Hawk helicopter involved in the American Airlines crash was flying isn't complicated, US ...

The major freeway is on the eastern border of the mandatory evacuation zone and has served as an unofficial fire barrier ... The daylong aerial assault from helicopters and planes dropping ...

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 ...

Boom Supersonic achieved Tuesday its goal of breaking the sound barrier on its first attempt with the XB-1 prototype of its Overture aircraft — and then repeated the feat two more times.

An aircraft developed by Boom Supersonic has become the first independently funded jet to break the sound barrier ...

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 sleek white aircraft has become the first independently developed jet to break the sound barrier A sleek white aircraft became the first independently developed jet to break the sound barrier ...

Boom Supersonic's XB-1 demonstrator craft could become the first commercial jet to break the sound barrier since Concorde ...

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 ...