Answer: 'sounds' from space.
The scientists at NASA want to get us all in the Halloween mood with a playlist of spooky sounds collected from the agency’s interstellar missions. The soundtracks come from celestial bodies including Jupiter and Saturn, as well as many different types of stars.
The noises didn’t technically originate as sound waves — they’ve been converted into such from electromagnetic emissions that NASA received from its spacefaring equipment. A group of physicists even converted the Saturn emissions into actual music, and the track from the star KIC7671081B has a villainous ring to it.
The full playlist can be found here.