Sound is a mechanical wave, which means it needs a medium (like air, water, or solids) to travel. Space is a vacuum, meaning it has almost no particles. With no particles to transmit vibrations, sound waves can't propagate.
Quick Comparison:
| Medium | Can Sound Travel? | Speed of Sound |
|---|---|---|
| Air (at sea level) | ✅ Yes | ~343 m/s |
| Water | ✅ Yes | ~1,480 m/s |
| Steel | ✅ Yes | ~5,960 m/s |
| Space (vacuum) | ❌ No | 0 m/s |
So in summary:
Sound doesn’t travel in space at all, much less faster.