Is the speed limit as light speed just based on what we see?
26363
How does faster than light travel violate causality?
128320
In superluminal phase velocities, what is it that is traveling faster than light?
119953
What is the meaning of speed of light $c$ in $E=mc^2$?
56930
What would an observer see if he/she flew toward a clock at relativistic speeds?
112408
What is the theoretical limit for farthest we can see back in time and distance?
28488
I am confused about the idea that the speed of light is independent of the speed of the source of light
88879
Time dilation as an observer in special relativity
40150
Will acceleration rate of expansion of space become faster than speed of light?
52519
The real meaning of time dilation
974
Speed of light in a gravitational field?
47988
Reflection At Speed of Light
27593
Why is travelling around the speed of light a problem?
7618
What is the speed of light relative to?
57608
Approaching speed of light: why do objects appear further away in front of me?
67327
Does this count as moving faster than light?
127383
Speed of light in general relativity
120679
Rømer's determination of the speed of light