I am confused about the passage of time for an outside observer versus an observer moving at the speed of light
35597
How long would it take me to travel to a distant star?
124330
Can an observer B move in such a way that his clock will run faster than that of a fixed observer A?
45625
Is energy content of a system different depending on the observer?
47988
Reflection At Speed of Light
70852
How exactly does time slow down near a black hole?
89837
Speed of light when accelerating
56005
Speed of light travel
80291
Relativistic velocity addition from time dilation
114454
Acceleration in special relativity
153552
Relativistic mass as seen by different observers
35663
Is there a formula that gives the position of an object depending on the time, but which doesn't allow the object to surpass the speed of light?
7618
What is the speed of light relative to?
133294
Are gravitational time dilation and the time dilation in special relativity independent?
147388
Why do these two ways of understanding constant acceleration give different results?
108569
Time dilation - why the observers see each other the slow one but then one of them is older or younger?
119953
What is the meaning of speed of light $c$ in $E=mc^2$?
78717
Does velocity or acceleration cause time dilation?