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Why is gravity on the Moon weaker than gravity on Earth?

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gravitational lens — gravity A galactic cluster, about five billion light-years away, produces a tremendous gravitational field that “bends” light around it. This lens produces multiple copies of a blue galaxy about twice as distant. Four images are visible in a circle surrounding the lens; a fifth is visible near the center of the picture, which was taken by the Hubble Space Telescope.

The gravity on the Moon is weaker than on Earth primarily due to the Moon's significantly smaller mass and radius. According to Newton’s law of gravitation, the gravitational force between two bodies is proportional to the product of their masses and inversely proportional to the square of the distance between them.12

Because the Moon has a mass of only about 1/81 that of Earth and a radius approximately 0.27 times that of Earth, the resulting surface gravity is only about one-sixth as strong as the gravity experienced on Earth’s surface. While an object's mass remains constant regardless of its location, this difference in the celestial body's mass and size results in a much lower gravitational pull on the lunar surface compared to that of Earth.34