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CosmosUp | July 15, 2019

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Interesting Facts The Moon

By | On + -
4

The “Breaking up”
The Moon is slowly drifting away


Although the orbit of the Moon seems nice and stable, our only natural satellite is actually drifting away from us at a rate of 4 centimeters a year. This is happening because of the conservation of momentum in the orbit of the Earth. In about 50 billion years from now, the Moon will stop moving away from us. It will settle into a stable orbit, taking about 47 days to go around the Earth (it takes 27.3 days today). At that point, the Earth and the Moon will be tidally locked to each other. It will look like the Moon is always in the same spot in the sky. Of course, the Sun is expected to consume the Earth in about 5 billion years, so this event may not happen.

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Comments


  1. Joe T

    Our moon does have a name and so does our sun. They are Luna and Sol.

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