May I, as a non-scientist, ask two silly questions: 1) what does it expand into? 2) If the universe appears to be finite, is there any way in which we can possibly know what lies beyond its boundaries?-As the universe expands it makes a larger space-time inside. Outside: void, nothing, other universes? And if we could look to the edge "wall" we could not look through it as light would curve back on itself. We are bound to know only what is in this universe.