What does a nebula sound like?
“Astronomer Paul Francis from the Australian National University has used [recording from spectrographs] and converted them into sound by reducing their frequency 1.75 trillion times to make them audible, as the original frequencies are too high to be heard by the human ear.”
His projects so far include a comet, quasar, and the life of a sunlike star. His explanation of the “Celestial Orchestra” is worth a listen.
