Cosmic Sound Comparison What Would Space Sound Like?! Space is silent to human ears but the universe still creates powerful vibrations and signals. The Sun giant Cosmic Sound Comparison What Would Space Sound Like?! Space is silent to human ears but the universe still creates powerful vibrations and signals. The Sun giant Vibration testing innovates to ensure space launch reliability Aerospace Testing International Yes, outer space is completely silent because sound needs a medium, like air, water, or a solid surface, to travel. Sound waves are vibrations that move through particles, but in the vacuum iPhone stumm schalten so geht's CHIP