• Question: how is a vacumue possible

    Asked by js109345 to Austin, Kirsty, Nicola, Nike, Sarah on 21 Jun 2012.
    • Photo: Kirsty Ross

      Kirsty Ross answered on 21 Jun 2012:

      A vacuum is space with very little in it. In outer space, the vacuum contains just a few hydrogen atoms per metre. It is formed when there is very low density and very low pressure.