If spacetime is expanding, shouldn't lengths expand at an equal rate?
3108
Why does space expansion not expand matter?
96456
General Relativity Equivalence
9388
Can matter be described as the result of the curvature of space, instead of vice versa?
75483
Is there a limit as to how fast a black hole can grow?
119747
What is the meaning of the "expansion of space"?
36619
Effect of space time relativity on the age of the universe?
19409
How to prove the expanding Ricci soliton is Einstein metric?
47082
If spacetime itself is expanding, how could we ever tell?
137342
Can spacetime be non-orientable?
10178
How can mass bend spacetime, if there's nothing to bend?
123415
Spacial curvature and expanding space
45888
Minkowski metric -- why does it follow from the constancy of the speed of light?
102370
At what speed does our universe expand?
125620
How do we know for certain that space is expanding?
10209
How to show the spacetime interval is invariant in general?
22682
If everything in the universe doubled in size overnight, would it be noticeable?
117108
Is the Universe being dragged into a singularity rather than expanding?