Sounds are made when objects vibrate. Soundwaves make the air around vibrate and the air vibrations enter your ear. You hear them as sounds. In space, there is nothing for the soundwaves to travel on.

Sounds are made when objects vibrate. Soundwaves make the air around vibrate and the air vibrations enter your ear. You hear them as sounds. In space, there is nothing for the soundwaves to travel on.