New Moon Formation Model
msheppard writes "This ariticle at Scientific American describes a new computer model describing the formation of the moon. "It is also strikingly similar to the first proposed impact theory 25 years ago, before computer simulations were available.""
Another theory (possibly posed by less sober astronomers) is that the moon is actually an orbiting landfill from the civilization which predated our own, by hundreds of millions of years. The theory goes that there have actually been 4 or 5 civilizations on earth, each wiped clean by a cataclysm (i.e. buried under the weight of styrofoam fast-food containers) and the earth would enter a phase of lower life forms which would tromp around, florish then die, providing fossil fuels for the next civilization.
A feeling of having made the same mistake before: Deja Foobar