• Question: How many atoms or particles can there be in a metre squared of 'the drak universe'?

    Asked by kamile to Pete on 22 Jun 2010 in Categories: .
    • Photo: Pete Edwards

      Pete Edwards answered on 22 Jun 2010:

      Hi kamile
      It depends on where you are, but if we think about the space between galaxies, which IS most of the space in the universe after all , then there is around 1 atom of hydrogen gas per cubic metre. Compare that to the room you are sitting in where there are around 600000000000000000000000 atoms of gas in each cubic metre!