• Question: why is the moon so round??????

    Asked by persionsupreme to Anil, Blanka, Cees, Emma, Mike on 28 Jun 2012.
    • Photo: Emma Trantham

      Emma Trantham answered on 28 Jun 2012:


      The moon is round because the gravity that is pulling things towards the centre of the moon is acting in all directions equally. This is also why the planets are round.

      For a bit more description why don’t you check out the answers at: https://niobiumj12.imascientist.org.uk/2012/06/22/why-are-all-planets-spherical-why-are-they-not-any-other-shapes/

    • Photo: Blanka Sengerova

      Blanka Sengerova answered on 28 Jun 2012:


      And you can try to demonstrate this by putting a series of tennis ball onto a piece of string and then start turning fast enough for the string to rotate round you. The tennis balls have the same pull of ‘gravity’ (actually centrifugal force in this case, but it will work anyway) all the way around you and illustrate different layers of the moon (or other planets).

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