What does a nebula sound like?
What do things sound like out in the cosmos? Of course, sound waves cant travel through the vacuum of space; however, electromagnetic waves can. These electromagnetic waves can be recorded by devices called spectrographs on many of the worlds most powerful telescopes. Astronomer Paul Francis from the Australian National University has used some of these recordings 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....
Source: PhysOrg - Friday, 10 February
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