Is it possible to detect if everyting in the Universe is changing size?
22682
If everything in the universe doubled in size overnight, would it be noticeable?
73729
Calculating the age of the Universe now and 30 billion years from now
50876
Is space expanding equally in every direction?
10209
How to show the spacetime interval is invariant in general?
113304
Universe expands ... compared to what?
92343
Does cosmological time expand like space does?
72416
The universe appears to have a lower bound in the time dimension, why not an upper bound?
81495
Does the universe have a different age to different observers?
2983
Shape of the universe?
95879
Other explanation for cosmological redshift?
112264
Cosmological constant doubts
27178
Can we simulate the whole universe in computer?
24003
Is the universe fundamentally deterministic?
10362
Does the universe have a center?
65566
Estimating age of the universe by Hubble's law?
66232
At what moment will matter falling into a black hole affect its size?
21084
Size of the universe