Related questionDoes time dilation affect LIGHT itself ? IOW , since light speed varies depending on location space vs atmosphere , etc . , could light travelling unencumbered across the vast reaches of space dilate time while travelling so that the distance of a light year is actually shorter or longer than a simple speed distance equation ? Thus instead of a straight line gradient , the actual distance would be a curved function . In 1 sec it travels x miles , but in 60 seconds it travels less than more than 60 x . In one hour , it travels less than more than 6060 x . <| sep |> A Small doggo <| sep |> Nah , I could see it for 5 if I tried hard enough and 4 fairly easily . I ' d say it ' s worth 4 <| sep |> Whoever ' s maintaining the official list of video clips , use this version please .