The moon is a little more than one quarter the size of Earth.
"If Earth were the size of a nickel, the moon would be about as big as a coffee bean," according to aThe moon's surface area is about 14.6 million square miles , which is less than the total surface area of the continent of Asia .The moon's mass is 7.35 x 1022 kg, about 1.2% of Earth's mass. Put another way, Earth weighs 81 times more than the moon. The moon's density is 3.34 grams per cubic centimeter . That is about 60% of Earth's density.
The moon's gravitational force is only about 16.6 % of Earth's gravity which means a person would weigh six times less on the moon than they do on Earth. A 45-kilogram person would weigh 100 lbs. on Earth but only 16.6 lbs. on the moon. Long jump events on the lunar surface would certainly be interesting as a person who can jump up 10 feet on Earth would be able to jump almost 60 feet on the moon.
Like most of the solar system worlds, the moon's gravity varies based on its surface features. In 2012, NASA's"What this map tells us is that more than any other celestial body we know of, the moon wears its gravity on its sleeve," GRAIL principal investigator Maria Zuber of the Massachusetts Institute of Technology said in a."When we see a notable change in the gravity field, we can sync up this change with surface topography features such as craters, rilles or mountains.
While the moon is the closest and one of the longest studied astronomical objects, scientists continue to press the celestial body for details. "The moon is the Rosetta Stone by which we understand the rest of the solar system," Noah Petro, deputy project scientist for NASA's Lunar Reconnaissance Orbiter mission,
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