It depends on the size and topology of the entire universe. It's possible the universe is smaller and sort of wraps around: literally, objects that appear far a

It depends on the size and topology of the entire universe. It's possible the universe is smaller and sort of wraps around: literally, objects that appear far away are just past images of the back of objects that are closer to us. More boringly, measurements of the curvature of the universe mean this is probably not the case.