• Question: is there sound in space?

    Asked by Ariel 3000 to Simon, Julia, Delma, Andrew, Alex on 15 Dec 2015.
    • Photo: Delma Childers

      Delma Childers answered on 15 Dec 2015:

      For a sound to travel from me to you, it needs molecules to vibrate. On Earth, this would be air or water. In space, there isn’t much to transmit sound. In deep space, there’s practically nothing to help sound travel. Short answer: There is (technically) no sound in space (at least, not that we can hear).

    • Photo: Alexander Finch

      Alexander Finch answered on 15 Dec 2015:

      Delma’s right!

      Did you see the movie “Gravity”? When she undocked the spacecraft from the space station? It was super noisy when she was still docked, with all the sound of the explosions travelling through the structure of the station. Dut the moment she undocked, it was silent, because there was a gap that the sound couldn’t cross!