Would something like the clouds in a nebula reflect light at all? If you can't see it is it possible to calculate it mathmatically tracing the current light patterns that are reflected?
What possible effects would alter the light? If we put a mirror in space to shoot light at could we...
Could we realistically see ancient images of the Earth from reflected light? We know the speed of light and we know the distance of the Earth from the sun. Do we have the knowledge to predict the movements of light that we could take a reflection off the Earth that shines on a distant object...