book of revelation in the bible. there's actually a comet that is named wormwood because its on a collision course with earth but won't hit for a loooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong time.... xD
Theres as much of a chance that the world will end tomarrow as there is on December 21st. It could happen anytime. Millions upon millions of factors will determin when it ends.
I dream of a better tomorrow, where chickens can cross the road and not be questioned about their motives.
Whenever the world decides to blow up, or whenever the world can't take the negative effects of man or other stuff anymore. But not in this lifetime, I hope.
Depends on what you mean by the world "ending" Do you mean human extinction? All animals extinction? All living organism extinction? The world physically getting destroyed beyond repair? I'd say the world will probably be destroyed when the sun explodes millions of years from now, but whether or not humans will even still be in existence by then is another quuestion :p We'll definitely be dead by any case so I don't care xD