In the 1970s, a small group of astronomers used the first prototype of the Concorde to pursue a total eclipse across the Sahara at twice the speed of sound.
Researchers with NASA are working to define a new standard for lessening sonic booms, and success would remove one hurdle to the return of supersonic commercial aircraft.
Remembering the Concorde, Flight 4590, and an insatiable appetite for jet fuel.
I have a friend who remembers flying the British Airways route to from New York to London. He recalled that it was a really noisy plane and the crew would hand out headphones circa WWII (But has this really improved?). There were four channels of music...