How can an object spin on an axis that is outside of itself?? Surely that is just called an orbit? The point that it orbits around is the centre of mass of the moon and the earth. Can someone explain to me how it 'spins' around this 'axis' also?
Have a look at these links....
http://www.grantchronicles.com/astro29.htm
http://www.digipro.com/Trials/moon.html