will there be really "end of the world"?

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this question still cannot be answered by science.. maybe because they still did not have the research in determining and predicting when will this happen. but will we be prepared if this might happen nxt year?next month?next week? or even tomorrow? what will we do if this happens? where will we go? does this mean we will all gonna die? I hope that this discussion will make everyone realize and think of what will we be doing in case this scenairo will happen...