Scenario of Crossing the speed limit of our Universe
22402
If I am travelling on a car at around 60 km/h, and I shine a light, does that mean that the light is travelling faster than the speed of light?
41750
The age of the universe
67531
Universe being flat and why we can't see or access the space "behind" our universe plane?
126980
What happens at the interface between two universes with opposite thermodynamic arrows of time?
80645
Time for two relativistic objects to meet
51901
Ambiguity in applying Newton's shell theorem in an infinite homogeneous universe
81969
What if the universe is rotating as a whole?
75070
Will the CMB eventually recede outside our observable universe?
80291
Relativistic velocity addition from time dilation
123854
Would time speed up near a large body of negative mass relative to observers in micro gravity?
110030
Superluminal expansion of the early universe how is this possible?
76819
How does "warp drive" not violate Special Relativity causality constraints?
59077
Travel duration from Earth to a star at 9.8 m/s² acceleration
37941
Can light travel slower than the maximum?
27178
Can we simulate the whole universe in computer?
3644
Symmetrical twin paradox in a closed universe
154529
Redshift and conformal time