Sunlight hits our planet, for example, and reflects light outward back into space. Hence why photos can be taken of earth from outer-space. But if we disregard technological limits to optics, etc., then in theory how much information does this reflected light contain? Is it rich enough, for instance, to contain microscopic details like bacteria? And is there a limit to the amount of detail that this reflected light contains? Further, does the amount of detail contained in this reflected light remain constant regardless of the distance that the light travels through space?