Did spacetime curve infinitely about 13.7 billion years ago?
4276
Did the Big Bang happen at a point?
121904
Regarding the possibility of Closed Timelike Curves
137796
Local translations in curved spacetime
95763
Elastic modulii of spacetime
41750
The age of the universe
113772
How to measure the curvature of the space-time?
108910
Age of the universe $ \equiv 1/H$?
147647
Spacetime around a massive cylinder
95561
Gravitational waves and time
39684
What would a closed timelike curve look like?
4087
Did spacetime start with the Big bang?
66193
How to prove that a flat spacetime admits Minkowski coordinates?
125571
Practical time travel: time dilation above the event horizon
25052
Doesn't dating the universe violate the concept of spacetime's inseparability?
42584
Curved space-time VS change of coordinates in Minkowski space
10178
How can mass bend spacetime, if there's nothing to bend?
92343
Does cosmological time expand like space does?