There is a cottage industry based on the premise that, on December 12, 2012, the world will end.
Some say an asteroid will hit Earth.
Others say there will be all kinds of natural disasters owing to some kind of odd celestial formation.
One website says: "The galactic alignment is the alignment of the December solstice sun as viewed from Earth with the galactic equator. The galactic equator is basically the Milky Way, as it's perceived in the sky. This is an alignment that is caused by the procession of the equinoxes, and it happens only once every 26,000 years."