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BBC. Scientists have worked out the reasons for the distorted shape of our Moon. A US team calculated the effect on the shape of the early Moon of tidal and rotational forces.
Text: BBC News
They say its own spin and the tidal tug of the Earth created a ”lemon-shaped” satellite.
Lead researcher Ian Garrick-Bethell, from the University of California Santa Cruz, said this shape-shifting occurred when the Moon was mostly liquid beneath a thin outer crust of rock.
This interaction with the Earth also caused the Moon to shift slightly on its own axis.
