History of the Universe and Earth

[PutraenusAlivius]

Let's just say that the Universe had a shape. Not infinite. If this is the case and we happened to get out, what happens? If there's nothing, then we're still in the Universe as there is Space.

Since the Universe is infinite, that means that the number of Galaxies and Stars are infinite and you all thought that all we can see is just that. No, there was more. As the Universe is infinite, it never ends.

And what will happen when the Universe "dies"? Like the Heat Death of the Universe or the Big Freeze theory? What will happen then? Will a new Big Bang occur and it all repeats, or when it's finished, it is finished and no life remains?

Also, what happens after Death? Can we perceive the world? What does it felt? Does it felt like nothingness? Or that you can't do anything? Or does a Heaven and Hell exist?