There is no sound in space 
Technically there is, its just in the form of radio waves. 
wat.
Sound is a vibration in a medium such as air, water, or in some cases the ground. It cannot travel in a vacuum.
The closest thing to "sound" in space is outburst from things like supermassive black holes, which creates a shock wave in the (extremely diffuse) interstellar medium. However, these sounds have a frequency of about 10^-14 Hz, which would be too low for human hearing even if the timestep was turned up to "stars fly out of galaxies" levels.
Radio waves are low-frequency light, which is different from sound.