Scientifically speaking, there is no end that has been found to the universe. It is a totality if all matter in space and on the planets where black holes exist. A lot is yet to be discovered by scientist about the universe.
Think of it as an expanding bubble, but we don't know what's beyond the bubble because it's moving away faster than we can see it. New theories are suggesting there could be millions of these bubbles ... mind boggling ... can't ... type ... any ...
Rib, current theory suggests that it is endless. However, there is a limit to the observable universe, as expansion makes things more than a certain distance from us move faster than light, and so no information about them can ever reach us.
So, in that sense, there is an end to OUR universe. But, if you went to that point, you would still see the same distance all round. Frustrating, isn't it!