3 Ways the World Might Still End

3 Ways the World Might Still End | Mysterious Universe: "The Apocalypse is nigh! Okay, so not really. We’re now well into 2013, and I’m sure that most of you have realized by now: The world did not end in 2012. And while we all celebrate our continued existence – and put the whole Mayan Calender incident behind us – what world-ending theories are left? "