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Lumpy Moon

Featured on June 22, 2018

The Moon's gravity is lumpy, as shown in this false-color image of a large crater on the lunar surface. Red shows regions with a stronger gravitational pull, while red and yellow show regions with a weaker pull. The stronger gravity is caused by concentrations of denser rock at the surface. This lumpy gravitational field was discovered by orbiting spacecraft in the 1960s. [J.H. Melosh (Purdue)/NASA]

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Find out more in our radio program entitled

Moon and Companions

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Two stars trying to get in sync

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Lumpy Moon

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