Universe from nothing?
22988
Are vacuum fluctuations really happening all the time?
152505
Does space curvature automatically imply extra dimensions?
113659
Why was the universe in an extraordinarily low-entropy state right after the big bang?
10553
Does the universe have an edge/boundary/barrier? If yes, what is at the edge?
51901
Ambiguity in applying Newton's shell theorem in an infinite homogeneous universe
113606
Dimensionless quantities
48899
Is it possible to create matter?
70008
Virtual Particles real? Virtual particles create a universe?
26512
What's the evidence supporting 1 singular Big Bang?
62473
Arguments for the existence of infinity
102370
At what speed does our universe expand?
126697
Can the Universe be deterministic and still allow free will?
63346
How can the universe expand if there is gravitation?
3103
How do we know the universe is expanding, and not that its contents are shrinking?
47736
Does anything you can think of exist?
149882
What is meant by "Nothing" in Physics/Quantum Physics?
117205
Expansion of the Universe: is new space(time?) being created or does it just get stretched?