https://www.nasa.gov/press-release/nasa-awards-contract-to-build-quieter-supersonic-aircraft

NASA has taken another step toward re-introducing supersonic flight with the award Tuesday of a contract for the design, building and testing of a supersonic aircraft that reduces a sonic boom to a gentle thump.

Under this contract, Lockheed Martin will complete the design and fabrication of an experimental aircraft, known as an X-plane, which will cruise at 55,000 feet at a speed of about 940 mph and create a sound about as loud as a car door closing, 75 Perceived Level decibel (PLdB), instead of a sonic boom



https://www.nasa.gov/lowboom/new-nasa-x-plane-construction-begins-now



Stupidity is invincible.