Hi, I was doing some Physics homework on light, and just thought of something. Well, I am sure, this has already been thought of, but I couldnt find anything on the internet. So I was wondering if anyone on here could maybe tell me if it is possible.
Firstly, the speed of light is a constant? Right?
Well, lets say, light from the sun hits the earth, does some reflect off and go back into space?
If yes, then, lets say that light leaving earth travels 1million light years, and reaches a reflective planet/star, maybe an ice planet/star, could it be possible for that light to reflect back to earth?
Taking another 1million years to reach back to earth, it could theorithicly(eek I suck at english) be possible to view that light of earth, now 2million years on the past?
Maybe if you had a powerful enough telescope to view it.
Seems kinda far fetched, but is there any major law of physics I am breaking with this theory?
Any thoughts,
Thanks
PS: I think this is the wrong forum, sorry i am new :$
