I've seen this mentioned on another post but some questions remain, the earth rotates about it's axis as I understand it and the moon rotates about the earth every 28 ish days, the moon has no axis rotation so we only see one side of the moon, is that right? This I can grasp, however why doesn't the moon spin is this because according to one theory when it was spewed from the earth it had no spin and forces do not cause it to have a spin of it's own? or is there some balancing factor that stops it rotating about it's own axis. Uranus doesn't spin about it's own axis( I think that's right) and is also a wandering planet, it is theorised, caught by our sun so never had any initial rotation, any similarities here. Any thoughts?