Add Yahoo as a preferred source to see more of our stories on Google. American aerospace startup Boom made history on Tuesday by breaking the sound barrier during the test flight of its Boom ...

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NASA's experimental supersonic X-59 jet designed to travel faster than the speed of sound is preparing for its second flight ...

NASA has released a new image showing the moment Boom Supersonic's XB-1 jet broke the sound barrier without producing an ...

A Korean Airlines jet plane approaches Los Angeles International Airport as low clouds gather over the Pacific ahead of forecasted rain in Los Angeles, Sunday, Feb ...

A supersonic jet built by Boom Technology broke the sound barrier for the first time on Tuesday, advancing its bid to resurrect high-speed passenger flights two decades after the Concorde’s demise.

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 ...

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. On its 12th test flight, the Boom XB-1 prototype broke the sound barrier ...