[E. Pluribus Unum]

The fact that the moon is not revolving so that we can see all sides of it during the course of its revolution means it had to have spun off from Earth.

The chances of their being a "dark side of the moon" is just about nil, otherwise.

[DocJhn]

They have had those rocks for how many years and just now drawing a conclusion! Go away! How much did Taxpayers pay this fool?

[Rebel_Ace]

The Moon actually revolves on it's own axis in 28 and some fraction of a day, exactly the same time it takes to orbit the Earth. In orbital mechanics, this is called being "tidally locked".

The Moon is returning the favor, by slowing down the Earth's rotation, so that in some few billion years our planet will face the same side of the Moon as well.

[freerepublicchat]

The fact that the moon is not revolving so that we can see all sides of it during the course of its revolution means it had to have spun off from Earth.

I think you mean it doesn't rotate, but it does. It rotates once per revolution around the earth. Tidal locking is responsible for this situation.

[Yo-Yo]

The fact that the moon is not revolving so that we can see all sides of it during the course of its revolution means it had to have spun off from Earth.

No, it's a phenomenon called "tidal lock."

[Squawk 8888]

The moon is revolving, however the period of revolution is the same as the period of its orbit. This is caused by the phenomenon of “tidal lock”, where earth’s gravity over time causes the denser part of the moon to face it.