posted on Nov, 16 2014 @ 08:38 PM
I do hope no ones stupid enough to think these are actual sounds coming from the Comet. Obviously, as already stated sound cannot travel in a vacuum.
These are EM waves, that have been taken by a composer/artist and modified into sound in whatever way he felt best, in order to sound nice to humans.
He could have modified them into an oil painting that looked nice to humans, but they chose sound for their medium instead.
Unless there's some weird prevalence for detection and interpretation of sound between separate intelligent species, any aliens would not interpret
this to sound as we have. It is an art piece and not a recording.