πSpace
You Cannot Hear Sound in Space
Space is a vacuum, meaning there's no medium for sound waves to travel through, so explosions and other events in space are completely silent.
About this fact
Sound requires a medium, such as air or water, to propagate as vibrations. In the near-perfect vacuum of space, there are not enough particles for these vibrations to travel. That's why movies depicting loud explosions in space are scientifically inaccurate. Astronauts in space communicate via radio waves, which can travel through a vacuum.