• Question: What is the universe made of?

    Asked by St Cyres Wales to Ceri, Marikka, Matt, Rob, Sally on 14 Nov 2014.
    • Photo: Sally Cutler

      Sally Cutler answered on 14 Nov 2014:

      Don’t really think a microbiologist is the correct person to ask.

    • Photo: Ceri Dare

      Ceri Dare answered on 15 Nov 2014:

      Atoms, as far as I know. But I don’t know much about physics. These people probably have a better answer: http://cms.web.cern.ch/news/what-universe-really-made

    • Photo: Robert Hampson

      Robert Hampson answered on 18 Nov 2014:

      Surprisingly we don’t know.

      When you observe the universe, gravity seems to indicate a certain mass. Lets pick 100 as a nice number. Everything we know of, stars, planets, dust, comets, etc. accounts for very little of that gravity. Say 30 of the 100 (30%). 70% is called Dark Matter. We have no idea what is causing 70% of the gravity in the universe!

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