1. Sound cannot travel through a vacuum because it needs a medium, like air or water, to move. In space, where there is a vacuum, there are no air particles for sound waves to travel through, so you wouldn't be able to hear anything. That's why in movies, when there are explosions in space, they are siRead more

    Sound cannot travel through a vacuum because it needs a medium, like air or water, to move. In space, where there is a vacuum, there are no air particles for sound waves to travel through, so you wouldn’t be able to hear anything. That’s why in movies, when there are explosions in space, they are silent!

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