Does space ever stop?

That is about the biggest question in science, because the universe is the biggest thing we know of. I doubt that anyone really knows the answer.

I have read some ideas about this. One is that the universe is constantly expanding. Another is that space is really curved. I think this means that lines which seem straight to us must actually bend in the great distance of space and curve back to make great curves or circles. Another idea is that there is a real edge to the universe, but so far away no one could ever find it.

However, all of these are just ideas, and I think the best answer to your question is that no one knows.