Time dilation.

The faster you go thorugh space, the slower through time you go. So, light would always pass you at the speed of light, because speed is dependant on time.

The equation:

t = time for the stationary person

to = time for the moving person

v = velocity

c = speed of light

sqrt() = square root

t = to/(sqrt(1 - v^2/c^2))

so as v->c

t = to/sqrt(0)

thus t tends to infinity.

Your mass increases as well, with almost exactly the same equation,

m = mo/(sqrt(1 - v^2/c^2))

That means your mass tends to infinity as well.

As you approach c (speed of light in a vacuum), volume also decreases toward 0.

Are you reffering to Lorentz Contraction?

Because as things approach c, their mass approaches 0

You mean size.

I do not get it. Because: I travel with almost light speed. I pass a planet, and and nearly immediately after, someone on the planet sends a light signal. It slowly comes nearer to my spaceship, and I catch it up. I send it out on the front of my ship, and if I’m right it would go with light speed away from me, and arives on the next planet in a time shorter than the light could travel from the first planet to the next.

Ok, since time slows down, the light does leave your ship at the speed of light to you, but not to a stationary observer.

Oh, to the other physics geeks like me , when I say stationary, I just wanted to be concise and not pedantic, so dont bother complaining that you cant prove something is stationary and everything is realitive etc etc.

Ian