Does the universe have an edge/boundary/barrier? If yes, what is at the edge?
2983
Shape of the universe?
24445
How can an infinite universe expand?
20680
Does infinity exist in physical systems?
113093
Is there now a universe without Thanos?
31407
Partition does not start on physical sector boundary?
95674
Expansion of the Universe, will light from some galaxies never reach us?
81969
What if the universe is rotating as a whole?
2377
Is the total energy of the universe zero?
76670
Are We Living in a Simulated Universe?
128481
Can two different topological spaces cover each other?
112264
Cosmological constant doubts
95295
Is the Universe Past-Eternal?
51901
Ambiguity in applying Newton's shell theorem in an infinite homogeneous universe
75058
Why isn't an infinite, flat, nonexpanding universe filled with a uniform matter distribution a solution to Einstein's equation?
54501
What is the entropy of the universe today?
91310
Does a limit point always exist?
51742
What is the curvature of an empty universe?