πSpace
Space Is Completely Silent
Because there is no atmosphere in space, sound waves have no medium to travel through, making space completely silent.
About this fact
Sound travels as vibrations through a medium like air, water, or solids. In the vacuum of space, there are virtually no particles to vibrate, so sound cannot propagate. This means that no matter how large an explosion (like a supernova), it would make no audible sound in space. Astronauts communicate using radios, which transmit electromagnetic waves that can travel through a vacuum.