Does the universe ever end

Answer 1

There are some theorys like the big crunch when the universe turns back to its normal state when it is smaller than a atom. Also the big rip when everything heats up and explodes. Finally the big freeze when all the stars will die out because the universe keeps expanding.

Note:

The consideration for whether our universewill truely end depends on one's determination of what the universe means to them. It could be said that the universe is endless because its very determination is built upon the evolving consideration of a reality within the dimensional degrees of SpaceTime convergence. It might be stated that our perspective of universal reality is bounded by our fourth dimensional frame of reference for existence within this SpaceTime continuum. In this sense of existence, it might be stated that our universe is not infinite; for outside this fourth dimensional abstraction of the SpaceTime continuum, our reality of existence has no meaning.

Yet within the consideration of our traditional fourth dimensional existence, scientists agree that the Theories of Relativity and Special Relativity bound our universal reality with a definable SpaceTime continumm. By virtue of these theories, expectations are extrapolated. One such expectation is that once the universe was once created by the Big Bang, the universe will end in a Big Crunch. Another expectation is that once the universe was once created by the Big Bang, the universe will end in a Big Rip. Therefore, by virtue of these theories, our universe within this fourth dimensional abstraction, will eventually evolve beyond its current dimensional limitations. And, as stated before, outside this fourth dimensional abstraction for our SpaceTime continuum, our reality of existence has no meaning.