Satellite Vibration Testing at UTS Tech Lab: Space Machines Company Space is often described as silent, but that is only partly true. Sound cannot travel through space because it needs air or another medium to carry vibrations, and space is mostly a Space crafts are tested with concert speaker. It is a direct field acoustical testing. Basically one of the loudest sound systems in the world blasts the object to see what vibrates loose. : Ihr iPhone Wecker klingelt nicht? Das knnen Sie dagegen tun STERN.de The Sounds of Spacetime American Scientist