Assume I am travelling in a spaceship at 0.9c towards a certain star, away from Earth. Then, some guy on Earth shines a really bright LASER light at the same star, causing a beam right beside my ship, so that the light and my ship travel in parallel paths. Because I am travelling at 0.9c, I should see that LASER to be going at 0.1c right? But, when I am moving, the time interval should be smaller (to get from one place to another). Say that The LASER took 1 second to travel 3x10^8 meters. To me, would it be going faster, since less than 1 second has passed for me while it travelled the same distance? v = d/t Since t is smaller because I'm moving at 0.9c, v becomes bigger. Would c be bigger in my moving frame of reference? Also, does time slow down only when you accelerate or when you travel with uniform motion also?