A "son of Concorde" aircraft that may one day fly from New York to London in 1.5 hours has reached supersonic speeds. An incredible image shows Boom Supersonic's XB-1 jet breaking the sound barrier.
A "son of Concorde" aircraft that may one day fly from New York to London in 1.5 hours has reached supersonic speeds. Get any of our free email newsletters — news headlines, sports, arts & ...
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