Since you are inventing your own laws of physics (It transmits everything instantly through some quantum concept), you can do whatever you want.

[deleted]

You are looking at the past when you see sky. Always. Anyone on proxima Centauri will see earth as if was 4.5 light years ago. Betelgeuse might have already exploded. We are Andromeda as it was 4.5 millions year ago. Today Someone far away can see earth as dinosaurs are roaming. Time is relative.

Whatever you see through a telescope it’s in the past. You can only look into the past.

Exactly, so technically we can see the end and beginning of space with the right equipment?

I read an article long back, regarding quantum entanglement, where scientists have used it to transfer data instantly and hypothesized it can be developed to transfer more data between edges of space instantly. I am no scientist, this is just what I read online which led me to this thought.

I read an article long back, regarding quantum entanglement, where scientists have used it to transfer data instantly and hypothesized it can be developed to transfer more data between edges of space instantly. I am no scientist, this is just what I read online which led me to this thought.

Even without a telescope. Light always takes time to travel. So when you look at your hand and go "Woah"... That hand you see is in the past.

Hmm. So in future ,if we somehow make this all possible, we could technically get photos of dinosaurs too.

Or in the far ahead future with zillion x zoom camera, we can get into a wormhole far away from earth, take a pic of earth and see how pyramids were made. Haha crazy stuff.

I think a better a way to frame this to avoid getting hung up on the quantum mechanic thing is asking if a theoretical astronomer on a distant planet viewed the earth and could see its surface, what would they see. (Ignoring the kind of telescope you would need to even do that but this is theoretical fun so whatever!) If they were 100 light years away, would they be looking at earth 100 years ago.

I think your question is more about, that than anything else? Could be wrong.

Ye thats it. Was just crazy to think of this possibility where you can get pics of dinosaurs. In more thought, it just seems like common sense. Whatever stars you see are probably dead.

I'm not knowledgeable enough on this subject to have an informed opinion. But couldn't quantum entanglement allow one to technically transmit information instantly?

I say technically since you'd need to physically transport one part of the pair. So you couldn't break causality with it.

[deleted]

Technically yes. That's what we are trying with jwst. Not the end of space but first galaxies and stars. Made of pure hydrogen. Right after dark ages.

Quantum entanglement is, basically, putting a red card and a blue card in two envelopes, then randomly mailing one of them somewhere. Now you open yours. If you have red, you know the other is blue, and vice versa. It is not and will never be faster than light communication.

>scientists have used it to transfer data instantly

No, this is a misreading of the results. At this point it appears that actual transmission of information faster than light speed is impossible, even with entangled particles.

[removed]

Oh, I just saw some articles similar to this long back

https://www.notebookcheck.net/Scientists-used-quantum-entanglement-to-instantly-transfer-data-between-two-chips.448810.0.html

No. Neither of those can happen. You have a reading comprehension problem.

Sure, scientists have demonstrated that the states of particles stay correlated at a distance, but as soon as the particle on one end is manipulated or forced into a state, it completely breaks the entanglement with the other particle, offering no possibility for encoding data that can be transferred at greater than light speed.

Just build the ultra clear telescope on earth and put some mirrors down on other planets. If we put a mirror down on mars and observed earth through it, we’d see us from 6 to 45 minutes ago depending on orbit. You should also be able to do the same trick using gravitational lensing around black holes. We should be able to see a refracted version of earth right before the event horizon… given a powerful enough telescope.

Hello u/AGARAN24, your submission "Can I look into the past?" has been removed from r/space because:

• Such questions should be asked in the "All space questions" thread stickied at the top of the sub.

Please read the rules in the sidebar and check r/space for duplicate submissions before posting. If you have any questions about this removal please message the r/space moderators. Thank you.

That's super cool right.

You underestimate mankind. What I'm talking is based on what we know as of today. Not just completely new stuff. It just has to advance.