Does the earth circle around the moon?
No, the moon is not perfectly round or spherical, as a
basketball might be. It is distorted in shape by the powerful
gravitational pull of planet Earth. Just as the moon's own gravity
pulls at us, distorting large bodies of water (creating what we
call tides), so the Earth's pull on the moon causes solid-body tide
effects on the moon. This means that the rock and soil of the moon
is rearranged by the gravitational pull of Earth.
The shape of the moon, being changed by the Earth, leads to an
interesting observation that anyone can make: the moon always shows
us the same side or face as it travels around our planet. In all
its phases, whenever we look at the moon, we always see the same
side.
The moon does not revolve or spin on its axis fast (or slow)
enough to give us a view of what we have sometimes called the "dark
side" of the moon. The areas of the lunar surface that jut outward
toward earth help to lock the moon in its rotation, so that we
always see the same side.
While the far side of the moon is not always truly in the dark,
any more than the side facing us is always illuminated by the sun;
it does remain a mystery to those who observe the moon from Earth.
We must rely on spacecraft of some kind that travel to the far side
when it is enjoying sunlight to send us images of that part of the
moon's surface.
I found a nice Internet explanation of the moon's shape here:
http://www.astronomycafe.net/qadir/q277.html
The search terms I used included: moon, spherical, shape,
gravity
Pazzoom