How long does it take the Moon to complete a full rotation on its own axis?

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The Moon takes approximately 27 1/3 days to complete a full rotation on its own axis. This period is known as a sidereal month, which is the time it takes for the Moon to return to the same position against the backdrop of stars. Interestingly, this duration is the same time it takes the Moon to orbit the Earth, resulting in the same side of the Moon always facing our planet. This synchronous rotation is a consequence of gravitational forces, which have slowed the Moon's rotation speed over millions of years.

The other durations provided in the options are not accurate representations of the Moon's rotational period. A full rotation in 24 hours would imply a much faster spinning rate than what is observed, while 25 days is also less than the actual rotation time. The statement that the Moon does not rotate is incorrect; it rotates on its axis, which is what allows us to observe only one side of it from Earth.

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