Speed of light and current dimensions of the universe
55505
How can a quasar be 29 billion light-years away from Earth if Big Bang happened only 13.8 billion years ago?
124797
What is the speed of time?
57305
Relativistic Mass and Gravity
21084
Size of the universe
45174
Measuring extra-dimensions
46510
Relativity and Galaxy Rotation Speed
50415
Value of the Hubble parameter over time
116728
Why does speed of light have to be constant?
66972
Is there any way to measure the one-way speed of light?
113772
How to measure the curvature of the space-time?
137834
Distance in relativistic circular motion in invariant spacetime
119953
What is the meaning of speed of light $c$ in $E=mc^2$?
12267
(Almost) double light speed
85665
Schwarzschild metric in expanding Universe
47242
Time dilation due to change in speed
43888
Age of universe?
77372
"Speed" of Gravity and Speed of Light