This Is How Webb Looks Back In Time

It's been an exciting month with the release of stunning images of our universe by NASA's James Webb Space Telescope. This is how these images allow us to look back in time.
Author: Sara Webb (Postdoctoral Research Fellow, Centre for Astrophysics and Supercomputing, Swinburne University of Technology)
Republished from an article by The Conversation with permission from Sara Webb.
Original article: theconversation.com/a-cosmic-...
Title: A cosmic time machine: how the James Webb Space Telescope lets us see the first galaxies in the universe
Latest Webb images: jwst.nasa.gov/content/multime...
WATCH MORE "Webb Found Water On WASP-96 b Exoplanet": • Webb Found Water On WA...
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Produced, directed, and edited by:
Ardit Bicaj
Narrated by:
Russell Archey
www.ravonmedia.com/
Graphics:
NASA's Goddard Space Flight Center
Conceptual Image Lab
European Space Agency
Canadian Space Agency
Space Telescope Science Institute
J. Olmsted (STScI)
F. Reddy
Z. Zhai
Y. Wang (IPAC)
A. Benson (Carnegie Observatories)
Stock footage:
envato.com
iStock.com/
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Music
ES_The Path To Innovation - Airae
Bonfire - An Jone
A big thank you to our lovely channel members:
Joseph Pacchetti
Damon Reid
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Cosmoknowledge brings news from space.
We love you, explorers!

[@pjb4463]

Was looking for a video to explain how we "see" into the past using light and this is exactly what I wanted, great information, great video 👍

[@johnsamuels958]

All the images are stunning...

[@Cosmoknowledge]

Truly beautiful.

[@Isaacpam_edit]

Webb I like you to discover humans from another Star system.

[@Cosmoknowledge]

That would be bonkers.

[@ameliawarfield5637]

Awesome video of the Webb Telescope.

[@Cosmoknowledge]

❤😍

[@ameliawarfield5637]

@@Cosmoknowledge 😎

[@josephpacchetti5997]

I'm a bit late on this one, But I understand all of what's been said, I do hope the damage sustained by the micro meteoroid Isn't going to adversely effect the capabilities of the JWST, Thank You Ardit and the crew for all you do, M L&R 👍

[@Cosmoknowledge]

Thank you, Joseph. ✌

[@Mrderful]

Whoever's running this channel just picked up a subscriber after I only watched 2 videos 👏🏿 He or they really makes the information digestible by making the size/distance of objects/areas quantifiable. There's a reference for some of these absolute mind boggling numbers. Idk if I'm explaining myself correctly but he/they have a way of being understood.

[@Cosmoknowledge]

Oh, thank you so much for this, and I'm so glad you enjoyed the content. Very kind of you! ✌

[@stevenspeedygonsalez6294]

Nice video

[@Cosmoknowledge]

Thank you! ✌

[@BitesBiz]

Hey Ardit, could you please make a video about “Glass z-13” galaxy? Would like a detailed video with your high quality editing!

[@Cosmoknowledge]

Hey, I'll try to do something nice. Thank you for the great words! ❤

[@BitesBiz]

@@Cosmoknowledge You are really a hard-working person! Making videos regularly, replying to almost every comment, and most importantly, the quality of the videos is out of the multiverse! We can't find this quality even in parallel universe!

[@Cosmoknowledge]

@@BitesBiz Hahaha, thank you so much. I really appreciate that!

[@drlost201]

Subscribed

[@Cosmoknowledge]

So nice to hear that. Thank you!

[@vicheakeng6894]

Water spout

[@BlvkkxFree]

😭😭 I'm crying because I'm still confused. What does space look like in current time?

[@SGTSnakeUSMC]

Could it be that the universe is literally as the graph image shows... a continual "big bang" moving through "space" and what we see is simply the result of being in the expanding "tail"? Sort of like the dust left behind a comet. Apologies in advance for the dumb question, just trying to wrap my mind around seeing into the past of an expanding universe.

[@benchmark6025]

So, if the JWT is looking back in time to right after the Big Bang why do we see mature galaxies?

[@Mendoza1414]

The images are a few hundred million years AFTER the bang bang, that’s why you see the mature galaxies 🌌

[@johnanderson5622]

Okay, I'm confused. Is the earth moving faster than the speed of light away from the centre of the big bang? These things we are looking back on are 46bn light years away. Say they went on a linear opposite path to us at the speed of light. We would have traveled 13.8bn light years from the big bang if we were traveling at the speed of light. This thing would have also travelled at 13.8bn light years in completely the opposite direction. So the distance apart we should be if both moving in opposite directions would be 27.6bn light years. So if we are 46bn light years apart, we must be moving faster than the speed of light in opposite directions. I didnt think matter could move faster than the speed of light.

[@somebluestaroutinspace5625]

The expansion of the universe is faster than light why? Well to not give you a 10-page essay I'll sum it up for you. the more space there is between objects the more that empty space expands. EX: say you have four blocks and two of them are 5 feet away from each other and the other 2 are 30 feet away from each other. And let's say the universe expansion doubles how far objects are from each other. so now the first set is now 10 feet away from each other and the second set is 60 feet away from one another. now if you put this on a universal scale you can see why objects expand away at such a fast rate.

[@nickgirone2507]

Each time you drive your car, you are in a time machine. You are driving down a highway at 60 MPH. Look down the road, you are seeing the future, look in your rear view mirror you see the past, look at the person next to you, you are in the present. Tell this to your kids, around 8 to 13 when you are out for a ride with them, get their reaction.

[@cursedrago]

I literaly like any vid even if im not interested lol

[@Cosmoknowledge]

❤

[@cursedrago]

@@Cosmoknowledge am i the only one that thinks you reed all the comments on these videos?

[@Cosmoknowledge]

@@cursedrago Haha, I guess people have noticed that I do reply to a lot of comments. Not all, but most maybe. It's good to connect with your audience. ❤

[@johnsamuels958]

Expansion of the universe is scary

[@Cosmoknowledge]

It is. And expanding faster than light.

[@johnsamuels958]

@@Cosmoknowledge and it's acclerating

[@Coverttrickster]

I wonder if there are intelligent life forms in a distant nebula viewing the ancient humans right now.

[@Cosmoknowledge]

That might be possible and it's fascinating just to think about it.

[@ripp704]

I wonder how do they know that they are looking in the right direction "towards big bang"

[@Cosmoknowledge]

The big bang was not a specific location. Its radiation is everywhere and the farther we look back in time, the closer we look to the beginning of the universe.

[@SupraSav]

I don't believe we can measure the universe or the rate of it's expansion. We would need to compare data over the course of its expansion(billions of years) and referencing unfathomable distances with accuracy is hardly believable when we cannot clearly identify some things in our own cosmic backyard.

[@tinkmarshino]

Man I wish we could figure out what dark energy and dark matter are.. What secrets do they hold.. or are they the answer? More than likely once we know it will just make us more confused and present us with bigger questions.. But that is ok by me.. heck, I hardly understand the answers we already have..😏

[@Cosmoknowledge]

I feel you, man. I'm sure we will soon find out what they are or what they aren't.

[@neerajsaini603]

If I see it is there. This looking back at things as it was when the light left is b.s

[@dtaspinar]

So much advancement yet so many people still believe in books declaring the Earth is flat.

[@Cosmoknowledge]

Sad.

[@shreeshchhabbi]

Unless we preserve our discoveries and pass to next generations and they keep doing the same, even after 100s of thousand years in future, we wouldn’t be able to figure out anything. As universe works in thousands of years of scale, we need to find a mechanism to work efficiently between generations.

[@Cosmoknowledge]

You said it very nicely. We surely need to care about the future and be okay with the fact that real magic happens through generations.

[@dejavudo666]

My question is if these photons maintain their velocity and giving off light somehow because nothing is interfering with their pathway. This is supposedly why we're able to see light from billions of light years or wtf ever they tell us to believe. Then, what about black holes sucking in everythjng from where ever? That pull would change the direction and other lights and objects would interfere with all light in practically every direction. And dark energy would definitely interfere with this light were seeing or said to be seeing from thjs aims web. Yea, like spider man shooting his web at your perception. Or like Jesus telling Peter to throw the net on the other side of the boat as he walked on water. If, we can still question the bs they are selling us, it means they are only fooling themselves.

[@JOHNKLERK69]

U cant see back in time stop that big liar pls !!!