# Does the Moon have rotation about its axis?

As I understand, the Moon is following Earth's curved space. If that's the case, shouldn't the Moon have no rotation if it's tidally locked, and only appear to have rotation?

If the Earth suddenly disappeared, would the Moon still rotate every 28 days?

• If the earth suddenly disappeared, the moon wouldn't rotate every 28 days. Commented Feb 22, 2015 at 19:47
• There are two rotations involved in a tidally-locked system. There is the rotation of the moon about its own axis, and the rotation of the moon around the Earth. Which rotation are you asking about? Commented Feb 22, 2015 at 19:49
• @Brionius im talking only about the moon's own rotation on its axis Commented Feb 22, 2015 at 19:50
• In your other question you seem to be trying to reason about the rotation of an extended body in terms of GR geodesics. It is worth noting that the individual pieces of an extended body are not free-falling: there are forces between them which means that no individual bit can be assumed to move on a geodesic. Commented Feb 22, 2015 at 19:51
• This is a special case of Will an object falling into Earth's orbit start spinning?. I think the question can be simplified to whether a gyroscope located at the centre of the Moon would rotate relative to the rest of the Moon. Commented Feb 22, 2015 at 19:57