Is a finite lightspeed necessary for cause and effect to exist?
114910
In what subfields and how far can the naive limit $c\rightarrow\infty$ of special relativity be carried?
19829
Is light affected by gravity? Why?
974
Speed of light in a gravitational field?
90147
Do light experience Doppler shift along and against frame dragging?
89837
Speed of light when accelerating
2754
Why and how is the speed of light in vacuum constant, i.e., independent of reference frame?
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?
61714
Can One-Way Speed of Light be Instantaneous?
28488
I am confused about the idea that the speed of light is independent of the speed of the source of light
53455
Relativistic speed/energy relation. Is this correct?
67327
Does this count as moving faster than light?
27593
Why is travelling around the speed of light a problem?
139987
Special Relativity, 2nd Postulate -- Why?
17771
Is speed of light and sound rational or irrational in nature?
39399
Will free-fall object into black hole exceed speed of light $c$ before hitting black hole surface?
21144
Can gravity accelerate an object past the speed of light?
51901
Ambiguity in applying Newton's shell theorem in an infinite homogeneous universe