• Question: The universe is expanding, but what exactly is getting bigger in the universe. Will the Earth ever expand?

    Asked by anon-33875 to Kate on 21 Jun 2013. This question was also asked by anon-33905.
    • Photo: Kate Husband

      Kate Husband answered on 21 Jun 2013:

      It’s the space which is expanding. So in between the stars and galaxies is expanding but because things like galaxies are held together by gravity they can resist this expansion and stay the same size. It’s only really the big distances between galaxies that expands.

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