Recently I watch a very old documentary with the great Arthur C Clark. Renowned author and script writer. Also the first person to suggest that vegetation, ie trees maybe visible in early Russian photos taken by their probes. Anyway In this documentary he talked about the moon and about how it was made of cheese. Ha I jest. More interesting is the fact that he relays information like the sun being 500 times bigger than the moon but exactly 500 times the distance it needs to be away from it for the moon to totally blot out its light. To the nearest millimeter. This is amazing and people should find the documentary.
If you are interested in the moon then please feel free to look at research done by Richard Hoagland @ www.enterprisemission.com or John Lear (be carefull hes a wacko)@ www.thelivingmoon.com, or keith laney @ www.keithlaney.net. If your really into it then you could try a find a copy of Billy Meiers supposed picture of Earth along time ago with two moons orbiting it. Neither of which is the present one apparently.
Enjoy.