How to explain curvature of spacetime at the time of big bang
2253
If the universe is expanding, what is it expanding into?
50566
Nature of gravity: gravitons, curvature of space-time or both?
10209
How to show the spacetime interval is invariant in general?
78916
Particles entangled after the big bang
151086
What bends fabric of space-time?
51720
Why does Minkowski space provide an accurate description of flat spacetime?
42291
Why is spacetime curved by mass but not charge?
66193
How to prove that a flat spacetime admits Minkowski coordinates?
80804
What evidence do we have that CMB is the result of the Big bang?
46510
Relativity and Galaxy Rotation Speed
2073
Conservation law of energy and Big Bang?
41750
The age of the universe
4276
Did the Big Bang happen at a point?
71085
In Einstein's General Relativity, do the space-time dimensions curve?
21084
Size of the universe
134697
How does classical GR concept of space-time emerge from string theory?
134905
What was the entropy of the universe at the time of the Big Bang?