I may be wrong, but this is just what I've heard.
People often talk about what would happen if we, humans, were able to make a spaceship travel at the speed of light. If I'm not mistaken, then we should not be able to make it out of our own galaxy, since it's millions of light years wide. But, I've heard, that due to the contraction effect, at the speed of light, the distance traveled will actually be much less than what is actually the width of the galaxy, so we should be able to reach the end of the galaxy, and even beyond in a much smaller time span than you would think. Is this right ?
And, if that is actually true, does this hold for light as well ? We've heard that light is about 8 minutes to travel from the sun to the earth, but that is not when taking contraction into consideration, is it ? Or is it different with photons that with ordinary objects at the speed of light ?
Yeah, a lot of questions, and I might just have misread everything I've ever heard. In that case, sorry :)