WHY DO WE A MOON ? The Moon's orbit is not round. And why is it in the orbit which it is ? We know the size and weight of the Moon. We know the size and weight of the Earth. We know the gravitational force the Earth is putting out. We know the gravitational force the Moon is putting out. We know the speed the moon is going and the centrifugal force created by it's circular orbit. There is a problem !!! The Moon is too big and heavy, and moving too fast for the orbit it has. Now, if the Moon is hollow, it will make perfect sense for it to have the orbit it does. NASA has not been truthful with us on many things - this is one of them. Google "Hollow Moon", and you will get an eyeful.