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Started By
Message
If there was a mirror 100 light years away in space and I had a very powerful microscope..
Posted on 4/15/26 at 2:17 pm
Posted on 4/15/26 at 2:17 pm
And I lined everything up perfectly so it should be pointing back at myself what would I see?
Would it be me standing there?
Me before I was born?
Me as an old man?
Does science have an answer?
Would it be me standing there?
Me before I was born?
Me as an old man?
Does science have an answer?
27
Posted on 4/15/26 at 2:18 pm to OysterPoBoy
quote:you jerking off at your desk
what would I see?
Posted on 4/15/26 at 2:18 pm to OysterPoBoy
amaze amaze amaze
Posted on 4/15/26 at 2:18 pm to OysterPoBoy
I think telescope is the word you’re looking for.
Posted on 4/15/26 at 2:20 pm to atxfan
quote:
I think telescope is the word you’re looking for.
Posted on 4/15/26 at 2:20 pm to OysterPoBoy
You would see whatever was happening in that spot 200 years prior (100 years of travel each way).
Posted on 4/15/26 at 2:21 pm to Bard
quote:
You would see whatever was happening in that spot 200 years prior (100 years of travel each way)
That's crazy if true.
Posted on 4/15/26 at 2:24 pm to OysterPoBoy
the person looking will be looking at you from 200 years ago
Posted on 4/15/26 at 2:26 pm to OysterPoBoy
Are all humans this stupid, question?
Posted on 4/15/26 at 2:30 pm to OysterPoBoy
You would be looking at Uranus from 200 years ago.
Posted on 4/15/26 at 2:30 pm to OysterPoBoy
quote:
That's crazy if true.
The 200 years is assuming the telescope and distant mirror were set up and in alignment the entire time. If both were set up at the same time though, and someone looks into the telescope right after setup, they are seeing what was happening on the far end 100 years ago (the same as if the mirror hadn't been set up, which is what we see normally with telescopes looking over such distances).
This post was edited on 4/15/26 at 2:32 pm
Posted on 4/15/26 at 2:34 pm to OysterPoBoy
In theory, assuming a perfectly aligned, enormously large, and ideal mirror (perfectly flat or appropriately curved, with no imperfections, and magically placed there instantly), here's what would happen due to the finite speed of light:Light from Earth (including sunlight reflecting off the surface, clouds, oceans, cities at night if bright enough, etc.) travels outward in all directions at the speed of light. It would take exactly 100 years for that light to reach the mirror 100 light-years away. The mirror would then reflect some of it straight back toward Earth, and that reflected light would take another 100 years to travel the return trip.The total round-trip time is 200 years. Therefore, when you look through your very powerful telescope at the mirror (pointed perfectly), you would see Earth as it appeared 200 years ago—not the present-day Earth, and not yourself in real time.
If you were alive today and looked in 2026, you'd be seeing Earth from around 1826 (give or take, depending on exact timing). Think early 19th-century Earth: pre-industrial in many places, horses and carriages dominant, no electric lights visible from space on the night side in most regions, different coastlines or vegetation patterns in some areas due to less human impact, no modern cities or satellites, etc.
You wouldn't see "yourself" unless you happen to be looking at a specific spot where a 200-year-ago version of a person (or their ancestors' environment) was visible in the reflection. The mirror reflects the entire illuminated side of Earth (or whatever portion faces it), so it's like viewing a distant image of the whole planet from that era.
The image would be of the Earth from 200 years prior, as if you were observing it directly from 100 light-years away (but via the reflection).
If you were alive today and looked in 2026, you'd be seeing Earth from around 1826 (give or take, depending on exact timing). Think early 19th-century Earth: pre-industrial in many places, horses and carriages dominant, no electric lights visible from space on the night side in most regions, different coastlines or vegetation patterns in some areas due to less human impact, no modern cities or satellites, etc.
You wouldn't see "yourself" unless you happen to be looking at a specific spot where a 200-year-ago version of a person (or their ancestors' environment) was visible in the reflection. The mirror reflects the entire illuminated side of Earth (or whatever portion faces it), so it's like viewing a distant image of the whole planet from that era.
The image would be of the Earth from 200 years prior, as if you were observing it directly from 100 light-years away (but via the reflection).
This post was edited on 4/15/26 at 2:35 pm
Posted on 4/15/26 at 2:35 pm to OysterPoBoy
quote:
Does science have an answer?
It would take 100 years from the light from here to there to show up in the mirror
Posted on 4/15/26 at 2:36 pm to OysterPoBoy
Considering that the light from your image would need to travel 588 trillion miles one way, I'd say dust, lol...
Posted on 4/15/26 at 2:38 pm to OysterPoBoy
quote:
what would I see?
Whatever it is, there'd be an Ole Miss fan standing behind you with tears in his eyes, pretending to be happy Kiffin left their program.
Posted on 4/15/26 at 2:40 pm to atxfan
quote:
I think telescope is the word you’re looking for.
Posted on 4/15/26 at 2:41 pm to OysterPoBoy
quote:
microscope
Posted on 4/15/26 at 2:41 pm to Bard
quote:
You would see whatever was happening in that spot 200 years prior
This. So whoever was looking at the telescope in 200 years would see you staring at them now.
This post was edited on 4/15/26 at 2:43 pm
Posted on 4/15/26 at 2:43 pm to castorinho
quote:No, because earth would have been in a completely different location in spacetime.
the person looking will be looking at you from 200 years ago
Odds are you would only see the blackness of the void.
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