why can’t sound waves travel through space?

Sound waves cannot travel through space because space is a vacuum, meaning it lacks a medium like air, water, or solids for the sound vibrations to move through. Sound needs particles to vibrate and transmit the wave from one particle to the next, and since space is mostly empty with very few particles, there is no medium for sound waves to propagate. Without these particles, sound waves cannot travel, so space is silent to sound as we know it. However, in some areas of space with sparse gas and dust, sound waves of very low frequency can exist but are beyond human hearing. Still, these are exceptions, and in general, sound cannot travel through the vacuum of space because it requires a medium for vibration transmission whereas electromagnetic waves like light or radio waves do not and can travel through space.