There will be a day when the world ends. We will be judged by our Creator, and our sins will be there for everyone to see. (I'll do a post sometime more on this subject, but not right now).
When will the world end? The honest answer is that God only knows! What about when scientists or other people predict that the world will end? Should we panick and quickly make our last confession? The answer is...no.
And when he was sitting on mount Olivet, the disciples came to him privately, saying: Tell us when shall these things be? and what shall be the sign of thy coming, and of the consummation of the world? And Jesus answering, said to them: Take heed that no man seduce you: For many will come in my name saying, I am Christ: and they will seduce many.
And you shall hear of wars and rumours of wars. See that ye be not troubled. For these things must come to pass, but the end is not yet. For nation shall rise against nation, and kingdom against kingdom; and there shall be pestilences, and famines, and earthquakes in places: Now all these are the beginnings of sorrows...
Then if any man shall say to you: Lo here is Christ, or there, do not believe him. For there shall arise false Christs and false prophets, and shall shew great signs and wonders, insomuch as to deceive (if possible) even the elect. Behold I have told it to you, beforehand.
We don't know when the world is going to end - but it is cetainly not going to be when scientists say it is going to be...because then we would know when the world would end, contradicting my first statement. :P