Doomsday 2012?

Something big happens in 2012: the ancient and complex Mayan calendar—studied by astrology, spirituality and history buffs alike—has chugged along for 1,872,000 days, and its cycle stops (and restarts) on Dec. 21, 2012. To add to the frenzy, it just so happens that the years building up to 2012 mark an unusual astronomical alignment, one so rare it occurs only in 30 out of every 26,000 years. During this period, the Sun will make its annual crossing of the galactic equator—the plane that bisects the Milky Way as it appears in the sky—the same day as the winter solstice.