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Is it true that if the universe is flat, then either it has to have an edge (meaning a place where you see galaxies in one direction and nothing in the other),
by suzzer99 4y ago
Is it true that if the universe is flat, then either it has to have an edge (meaning a place where you see galaxies in one direction and nothing in the other), or it has to have an infinite number of galaxies?
- WastingMyTime89 4y agoI’m not entirely sure of that to be honest with you. I seem to remember than counterintuitively you can embed a flat torus in 3D but it goes further than my knowledge. It means it’s not a “small” hypersphere, that’s for sure.