No, sound cannot travel in a vacuum. Sound is a mechanical wave that requires a medium, such as air, water, or solids, to propagate. In a vacuum, there is an absence of matter, so there are no particles or molecules to vibrate and transmit sound waves. Therefore, sound cannot travel through a vacuum.
In space, for example, where there is a near-vacuum environment, sound waves cannot propagate. This is why astronauts in space cannot hear sound in the same way as we do on Earth. However, it's worth noting that certain forms of electromagnetic radiation, such as radio waves or light, can still propagate in a vacuum because they do not rely on a medium for transmission.