• Question: What is the universe made of?

    Asked by richard to Nathan on 3 Feb 2015.
    • Photo: Nathan Quinlan

      Nathan Quinlan answered on 3 Feb 2015:

      I am no expert but I do believe it’s mostly empty space. And dark matter, and dark energy, and as far I can gather, nobody really knows what they are! This is a question for a physicist – maybe Padraic could help?

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