Boom Supersonic's XB-1 demonstrator plane just went supersonic in the skies over California's Mojave Desert, making it the first civil aircraft to break

MOJAVE, California—High-speed airliner developer Boom took a major leap toward the development of its Mach 1.7 Overture transport with the successful supersonic flight of its XB-1 demonstrator, the first independently developed faster-than-sound aircraft.

Recent advances in science include a sped-up return of NASA astronauts proposed by Trump and Musk, a historic supersonic test flight by Boom Supersonic, building progress of a giant telescope in Chile,

Boom Supersonic flew its XB-1 test jet at about the speed of sound, a major step as the company works toward the daunting job of bringing supersonic travel back to the skies.

American company Boom achieved a milestone Tuesday as its XB-1 aircraft exceeded the speed of sound for the first time during a supersonic test flight. The last flight of a supersonic airliner, Concorde,

American aircraft company Boom Supersonic proved their name by successfully flying their civilian jet, the XB-1, faster than the speed of sound over the Mojave Desert Tuesday.

Boom Supersonic's XB-1 has broken the sound barrier, reaching Mach 1.122 in a historic test flight over the Mojave Desert, marking the first human-piloted civil supersonic flight since Concorde. - Ana

An American civil aircraft broke the sound barrier for the first time in California’s Mojave Desert, a US aviation company announced on Wednesday.

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The test flight took place in the same Mojave Desert area in California where Charles "Chuck" Yeager first broke the sound barrier in 1947.

The XB-1 aircraft accelerated to Mach 1.05 within about 11 minutes of taking off, according to Boom Supersonic and live video of the test flight.