Supposedly, Planet X, which is 8x larger than Earth, is going to enter our Solar System, which it does every 3600 years. It's going to pass between us and the sun, and it's gravitational pull is going to f' us up by causing earthquakes, extreme weather, volcanic eruptions, tsunamis and a Polar Shift.
Predictions are that 2/3 of the Earths population are going to be wiped out.
This is supposed to take place on Dec 21, 2012.
Which is pretty freaky, considering the Mayan Calendar, (which is more accurate than our own), ends on that same day.
Nostradamus predicts similar shit.
Shit, that's just 4 years away
I'm not one to jump on board with end-of-times predictions and other crazy shit... but the Planet X thing is kind of scary....