Doomsday prognosticators are touting the impending apocalypse on December 21, 2012. Most base their prophecies on the supposed “end” of the Mayan calendar.
NASA scientists reviewed the top five earth-destruction scenarios — including a collision with yet-to-be-discovered planet “Nibiru” and the sudden flipping of Earth’s magnetic poles — and have offered their opinions on each. Check out http://on.msnbc.com/ywIXon
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