In the vacuum of space, sound waves cannot travel as they require a medium to propagate. Sound waves are mechanical waves that rely on the interaction and vibration of particles in a medium, such as air, water, or solids, to transmit energy. In the absence of a medium like air or any other material, sound waves cannot propagate.
Space is mostly a vacuum, devoid of air or any other substantial matter. Therefore, sound cannot travel through the vast majority of space as there are no particles to transmit the sound waves. In the absence of a medium, sound simply cannot propagate, and thus, we cannot hear sound in the traditional sense in outer space.
However, it's important to note that there are other ways to detect or measure phenomena in space. For example, electromagnetic waves, such as light, can travel through the vacuum of space and provide us with valuable information about distant objects and events. Instruments like telescopes are used to observe and study celestial objects using electromagnetic radiation.