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A "son of Concorde" aircraft that may one day fly from New York to London in 1.5 hours has reached supersonic speeds. An ...

(AP) Extreme athlete and record-setting high-altitude jumper Felix Baumgartner hopes no more last-minute cancellations will thwart his death-defying attempt to be the first skydiver in history to ...

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 ...

Boom Supersonic's XB-1 jet went out in style on Monday (Feb. 10). The XB-1 broke the sound barrier three times during its 13th and final test flight, which lifted off Monday from the Mojave Air & ...

Concorde and Tupolev are acknowledged as some of the first planes to break the sound barrier, but it wasn't them. Which one actually did it first?

Boom Supersonic broke the sound barrier in late January with its XB-1 test jet, paving the way forward in the startup's efforts to build its own supersonic airliner. Boom and NASA released a unique ...

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 a test ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. A sleek white aircraft became the first ...