• Question: How can you move in space if there's no air to displace?

    Asked by 10kempstera to Mike, Pip, Tianfu, Tim, Tom on 26 Jun 2012.
    • Photo: Tim Stephens

      Tim Stephens answered on 26 Jun 2012:

      Inside a spacecraft, astronauts get used to pushing off from something and then gliding to the next location. If they don’t push hard enough, they can get stuck in the middle and I guess that they have to try to ‘swim’ or get help from one of the other astronauts.
      In space, they are always either attached to the spacecraft with a safety line, or have some sort of jet-pack to help them move.

    • Photo: Tom Lister

      Tom Lister answered on 26 Jun 2012:

      Pushing off something else, jet packs, solar wind, farting, gravity from planets/the moon…

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