We learned in class that in most biblical times, people had this concept of the universe as being 3-story. There was Earth, which was a disk; the heavens, which were a dome above it; and the underworld, where the dead people went. But as time went on, people discovered that this was a bad idea. Now we have the theory of the ever-expanding universe. The question is, where do the dead people go now? There's no under anymore.
My answer, dear friends, is this:
THEY LIVE ON THE OTHER PLANETS.
Not now, maybe. But when the dead are all resurrected. I mean, where are you going to stick all the human beings that have ever lived? You'd certainly have an overcrowded Earth. That's why the universe is ever-expanding. There are more and more people being born everyday. We don't have to worry about being one small speck in the universe--all those other places are our retirement homes!
.... But in all seriousness, I don't know.