NASA is developing a supersonic jet with Boeing that will be so fast, that by the time you're halfway through watching 'Oppenheimer', it would have already flown you from New York to London - Luxurylaunches
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NASA is developing a supersonic passenger aircraft that will reportedly have a top speed of Mach 4 (~3000mph), which will not make it twice as fast as the

NASA is developing a supersonic passenger aircraft that will reportedly have a top speed of Mach 4 (~3000mph), which will not make it twice as fast as the Concorde but also faster than the legendary SR-71 Blackbird spy plane that was designed with a top speed of Mach 3.2 (around 2500mph).