Just a theory: If we setup or found a mirror floating 1,000,000 light years away (mirror would be MASSIVE by the way). Anyway; if we pointed a telescope at the huge mirror and we looked at our own planet in the mirror would we be seeing what happened in the past? (about 2,000,000 years ago) or is this idea silly? Honestly on paper this sounds like a good idea but would it actually work?
Sounds like plausible, IF YOU ACTUALLY MANAGE TO DO IT. But if it's possible to see what the stars were before 20 years via telescopes, why not see the Earth, using a mirror.
in theory if the massive mirror were light years away and in some geosynchronous orbit to the earth then yes you could see what happened in the past. of course none of this is really possible. sure we can put a huge mirror into space but to travel 1million light years with it and have it geosynchronous to the earth from that distance? not remotely possible with any tech we have.
Sounds like plausible, IF YOU ACTUALLY MANAGE TO DO IT. But if it's possible to see what the stars were before 20 years via telescopes, why not see the Earth, using a mirror.Crimsader
Yes, as I wrote it all seems very plausible on paper but it would obviously be a very long, tedious and expensive operation.
i dont think science works like that, but even if you could, what would be the point? even if you could manage see the earth, you wouldn't be able to see past the atmosphere.
Wouldn't you have to travel much much faster than light to put it there, and somehow overtake light that was speeding out into space millions of years ago (if you insist on seeing the world from 2 million years ago) in order to catch and reflect it? Also, if you wanted to keep it in geosynchronous orbit around earth...it would have to be travelling even faster than that^ across unthinkable distances. Oh, and if the light was sent out two million years ago (for example), then surely we would have to wait another two million years after we set the mirror up before we're able to even see the mirror from Earth, let alone seeing anything in the mirror. I suppose it works in theory, but...yeah, if you have the technology to do all that then i doubt you'd bother trying to look into Earth's past. It seems kinda mundane, given all of the other possibilities that technology could allow.
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