Both the Moon and the Earth orbit or travel
around the Sun. The Moon also orbits the Earth
taking 27.5 days to complete its path around the
Earth. In addition to the Moon and Earth orbiting
around the Sun, they each rotate around an axis.
The Earth's rotation takes one day to complete
while the Moon's rotation takes the same amount of
time as its orbit around Earth (27.5 days). It is
because the rotation and orbit of the Moon are
exactly the same that we only see one side of the
moon. If the rotation of the Moon was different
than its orbit, we would see the far side of the
moon; however, since the rotation keeps up with
the orbit, we only see one side of the moon.
I found a really good video with explanation:
the moon rotate?
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