• Question: Is everything in space made out of matter?

    Asked by hatishan to Isaac, Silvia, Will on 18 Nov 2016.
    • Photo: Silvia Pardo

      Silvia Pardo answered on 18 Nov 2016:

      No, actually only 30% of the universe is made of matter, the rest is what we call dark energy. Dark energy is a property of space and makes the universe expand in all directions, like a balloon.

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