• Question: how big is space?

    Asked by jamesbond007 to Cathal, Daphne, Darren, Jon, Katherine on 10 Mar 2012. This question was also asked by tooney001.
    • Photo: Darren Logan

      Darren Logan answered on 10 Mar 2012:

      You can do a rough calculation based upon the speed of light and the Big Bang (when the universe emerged and started to expand) and come up with 930 billion trillion kilometers across. Thats about as big as visible space could be. Nobody knows what exists beyond that, but if you want to call that space too, then space is probably infinite… it just goes on forever.

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