I don't want to sound like I know more than I actually know. I did that on the last two questions I asked. I know nothing, but that doesn't seem to stop me from thinking about this stuff. So since E = mc2, would that mean that light can be moved like mass? Lets say there is a star at one end of the galaxy and we see it in the sky. That same star is still shining and the galaxy is moving. About a billion years later it's in another part of the galaxy. Only it's much closer. So, can we see this same star twice in two different parts of the sky? And another question, can photons take the scenic route by being pulled this way and that around the galaxy? Can that sun be no where near where we think it is. Can the stars we see in the sky be doubles, tripples, or even be that same star seen more than a thousand times?