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Earth’s Moon

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The moon is the closest natural object to Earth. Look up! You can see it in the night sky. Sometimes, you can see it during the day. Learn more.

The moon is a large rock.

ALEX DEAN—GETTY IMAGES

It gets hit by smaller space rocks. That forms craters. The surface of the moon is rough and dusty. There is no wind or weather there.

The moon orbits the Earth.

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It takes 27 days for the moon to travel around the Earth. Its gravity pulls on Earth. This causes tides. Earth’s oceans have high tides and low tides each day.

The moon has phases.

ALBERTO AGNOLETTO—EYEEM/GETTY IMAGES

The moon seems to change shape. It gets its light from the sun. As the moon orbits, we can see different amounts of it. There are eight phases. One is not visible.

People explored the moon.

NASA

Buzz Aldrin (pictured) and Neil Armstrong were the first people on the moon. It took their spacecraft three days to get there.