No, sound waves do not travel through empty space. Sound waves require a medium, such as air, water, or a solid, to propagate. In space, where there is a vacuum and no air or other medium, sound waves cannot travel.
In contrast, light waves can travel through the vacuum of space. Light is an electromagnetic wave, and it does not require a medium to propagate. Therefore, light can travel through space.
The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second). This speed is often denoted as "c" in scientific equations. In comparison, the speed of sound varies depending on the medium through which it travels. In air at room temperature, sound travels at around 343 meters per second (about 1,125 feet per second), which is significantly slower than the speed of light.