There's this new supersonic comercial aircraft called Boom XB-1 that breaks the sound barrier completely silently!
It uses refraction of sound to do so, meaning it can do routes the Concorde (RIP) could only dream off since it was only allowed to go over the speed of sound over thr ocean.
Another super cool thing about it is that it uses 100% of SAF (Sustainable Aircraft Fuel), meaning it doesn't contribute to atmospheric AND sound polution.

















