The universe is a concept of space and time. These two dimensions (so strongly associated with each other in relativistic physics that they are combined in the idea of space-time) may not exist outside this universe. The word "beyond" is already related to space-time. We cannot define what is outside, beyond, before, or after our universe because these concepts are only known to apply in the space-time universe itself.
Time and space exist because this universe has these two dimensions. Other dimensions and concepts may be scattered across all that we do not know. It does not have to be time after this universe or by that matter before.
For example, where does the mass that is pulled into black holes go to? *The black whole just gains that mass into itself* This whole answer is wrong..... It is clear that it is no longer in our space and time, because all that stellar matter would not fit in a single point.
There is no simple answer to this question. Since we do not possess the capabilities to explore a space that is beyond our senses at the moment, we cannot know what is beyond. As it is unobservable, it is only a subject of our speculation. There are mysteries inside that we have not unraveled yet.
It could be true, but it is unlikely that there is absolutely nothing beyond our universe. Maybe parallel universes. Anyway, what does nothing look like?
Edited by Adminnemooseus, : Deleted spam links, added some blank lines, fixed some misspellings.
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