The moon; Earth's only natural satellite. There's Tycho, the most recent crater, its radial impact lines extending halfway across the face. You'll need to turn your head on the side though - Tycho is actually in the moons southern hemisphere...
You ever wonder why we only see the same side of the moon? Why we never see the "dark side of the moon"? Easy: the moons rotation is the same as its orbit - synchronised at 28 days. Let me explain.
You'll need to put both your fists up for this one, one fist being the Earth, one being the moon. Swing your moon fist around your Earth fist keeping your moon palm side always facing your Earth fist. Starting to get it? The moon must spin on its axis once for every cycle around the Earth it completes in order for us to see only one side. Try not to get yourself in a twist now!
Canon EOS 10D
1/80 sec f 10 420 mm Flash: Not Fired ISO: 100