One popular theory is that Planet X or Nibiru is headed toward Earth and we are all going to die from some cosmic catastrophe. Scientists world-over have debunked the theory of this tenth-rogue planet, including the guys sitting at NASA. And if this were true, then all the skeptics and disbelievers of the world want to know where is it? We don't see it. No one has spotted it yet. And why isn't anyone tracking it then?
Other theorists have been spreading rumours about a planetary shift in alignment, reversal of the Earth's rotation, a polar shift, which all basically spell Armageddon.
Images: A poster of the Hollywood blockbuster 2012, which was themed on the End of the World.