You are right, there are many multiple copies of several galaxies and if it looks like a double image it probably is, sometimes on opposite sides. They have to do follow up studies to compare spectroscopy but most are obvious. That paper was about MACS0723, but there is another paper with annotations on a Hubble image of MACS0416 showing where the multiple images are, SMACS0723 being one of the first JWST images. UA-cam deleted my last comment but I'm sure you can find the image of SMACS0723 and the Hubble image of MACS0416 with annotations.
Un grande appassionato grazie a tutti quelli che hanno partecipato alla costruzione del JWST al HST ed a tutte le Agenzie Spaziali,in particolare alla NASA, all' ESA ed anche alla nostra ASI...un grande ringraziamento anche all' INAF ❤
Can’t the stretching effect of the lensed galaxies be corrected in some way so that they appear as they should? In any case, a fascinating and extraordinary image. Thanks Chris!
The JWST image of the cluster is about 2 million light years across, containing (most of the total) 1000 trillion solar masses, the central region is 650,000 light years across and contains about 160 trillion solar masses.
1:30 652,000 light years is lesss than the distance to Andromeda ... surely all those galaxies can't be in such a small space? Wiki says the same so the question is how can they all be so close?
Yes, you could squeeze all of the galaxies in the JWST image between our Milky Way and the Andromeda galaxies, the full JWST image is 2 million light years across. The (Hubble) image is about 3.5 million light years across (1050kpc), the cluster is contained within 950 kpc radius or 6 million light years, (the redshift of 0.396 gives an angular scale of 5.4kpc per arcsecond and the image is 3.38 x 3.24 arcminutes) and a mass of 1000 trillion solar masses. The '200 kpc' (650,000 light year) diameter reference is the central region estimated to contain 160 trillion solar masses from studying the lensing in that region. *(actually I was looking at the Hubble image but my numbers are correct since they are from the paper, JWST image is about 2 arcminutes across, or 2 million light years across or 650kpc, so the 200kpc is about the central half) Working out these numbers takes a bit of effort and I wish ESA and NASA did it for me!
Still wonder what the human eye could see sans the tech used to make these heavenly bodies visible - by necessity, not design. Speaking of unseen dimensions, I'm reminded of the documentary about Dorothy Izatt's extraordinary photos. ('Capturing the Light'). The images in her still photographs and film were taken over close to a half century. Stella Lansing, on the other side of North America, are took thousands of feet of interesting and inexplicable film. Happy trails. Paz y luz ✨️ to all
When a spiral galaxy with diameter 100.000 lightyears appears to fill 1 arcminute in the picture and is said to be one billion light years away, and I see a lot of full spiral galaxies in the background who appear to fill 1 arcsecond in the picture then they are 60 billion light years away, and that is just what it appears in all the JWST deep field pictures and it can't be that all of them are just gravitational lensed or less than 100.000 lightyears in diameter! Therefore, the theses that the universe is only 13.8 billion lightyears old is bs. Also, when JWST looks into the exact opposite direction and there are also galaxies appearing 60 billion lightyears away and more, so how come the opposite galaxies appear 120 billion lightyears from each other at a time when the universe was allegedly only some less that 1 billion years old and could have had a diameter of maximum 2 billion lightyears then.
4:55 Thanks to the side by side images, it's possible to to cross your eyes to achieve the virtual 3D centre image effect and then the reds REALLY stand out. I'm using a 4K 50" monitor so I had to stand back about 8ft to make it happen.
Great talk. Are there any approximations on exposure time on these two images? Answer The Hubble images were originally taken back in 2014, requiring some 122 hours of exposure time. The Webb images were taken earlier this year over the course of about 22 hours, allowing an entirely new set of galaxies to come into focus.
Einstein published in 1916 and predicted that massive objects, such as stars, could bend light rays passing nearby. This prediction was verified by the observation of such bending of starlight near the Sun in 1919.
@@morningmadera of course it was. And then someone predicted that something really massive like a galaxy would bend the light enough that you would be able to see behind the galaxy. Now here is where I do not trust my memory at all - perhaps you can help - didn't someone observe something behind a gravitational lens that was so faint the photons were so rare that in fact one was seeing the same photon in two slightly separated images? which is obviously Dark Magic if true. Or else my memory is just wrong.
@@DanBeech-ht7sw Didn't they find something like that with JWST?? and they time stamped/imaged it?? or is my memory failing me?? and wasn't there 3 images?? hmm have to go look, eeks
Does lensing also affect time? You see this event here and now. And then over there you can see it again? I suspect that you can see a streak of that event streaking across some sky as the light takes different paths to your eyes. How small an open aperture can you get a very short-lived event?
It probably doesn't effect time but the gravity causing the lensing will. One thing to note is that the different paths are of different lengths and so each different lensed image we see of a Galaxy is of a different time relative to the Galaxy itself. If you can see an event in one image then it may occur months or years later in another image and if you can detect that then you have an important measurement.
lensing affects space, so it does affect time as well, since space and time are interwoven there are examples of pictures of clusters that show the same supernova at different stages in the same image example: search youtube for "Hubble sees 'evolving' supernova 3 times in same image"
@@MrDino1953 Bro. The kid's excited re: the subject matter. Oh. And people are different. Either way, it's infinitely preferable to going full Karen in comments, especially when someone's giving their all.
@@abpccpba It's 4.2 light years away but if the galaxy was the size of the USA then our sun would be the size of a red blood cell. We humans are going nowhere.
How could anyone possibly think we are alone in the universe when it is that big It must be absolutely packed with life in every calaxy we can see , containing millions or billions of stars , when theres billions of galaxys, It Blows my mind chris 🚀🛰🛰🌙🌞🌞🌞
since it takes millions and billions of years to travel or communicate with those galaxies, we might as well say that we're alone we're alone even in our galaxy, since it takes thousands to tens of thousands of years to just send a signal to most of the stars.
There is no way any body can think we are the only life in the universe after seeing this.
Why are you concerned?
@@tomsusanka5187 Why are you concerned about why I am concerned?
You are right, there are many multiple copies of several galaxies and if it looks like a double image it probably is, sometimes on opposite sides. They have to do follow up studies to compare spectroscopy but most are obvious.
That paper was about MACS0723, but there is another paper with annotations on a Hubble image of MACS0416 showing where the multiple images are, SMACS0723 being one of the first JWST images.
UA-cam deleted my last comment but I'm sure you can find the image of SMACS0723 and the Hubble image of MACS0416 with annotations.
Un grande appassionato grazie a tutti quelli che hanno partecipato alla costruzione del JWST al HST ed a tutte le Agenzie Spaziali,in particolare alla NASA, all' ESA ed anche alla nostra ASI...un grande ringraziamento anche all' INAF ❤
Can’t the stretching effect of the lensed galaxies be corrected in some way so that they appear as they should?
In any case, a fascinating and extraordinary image. Thanks Chris!
Excellent, keep up the good work
The JWST image of the cluster is about 2 million light years across, containing (most of the total) 1000 trillion solar masses, the central region is 650,000 light years across and contains about 160 trillion solar masses.
Did they give JWST the same amount of time to image that area? If not, imagine what we will see when they do. It will be epic.
Agreed 👍👍👍
@@11235but good point… however, I’m thinking… what is always beyond… where is the “edge”?
i think it only took 10 hours for JWST, whereas it took 10 days for Hubble! :O
@@SoapinTrucker imagine if they pointed JWST to the same spot for ten days?
Love these names Mothra and Godzilla! Cool video thank you
Thanks Chris!❤ beautiful image!
Top vid 👍👍👍
nice pictures good explanation
1:30 652,000 light years is lesss than the distance to Andromeda ... surely all those galaxies can't be in such a small space? Wiki says the same so the question is how can they all be so close?
Yes, you could squeeze all of the galaxies in the JWST image between our Milky Way and the Andromeda galaxies, the full JWST image is 2 million light years across.
The (Hubble) image is about 3.5 million light years across (1050kpc), the cluster is contained within 950 kpc radius or 6 million light years, (the redshift of 0.396 gives an angular scale of 5.4kpc per arcsecond and the image is 3.38 x 3.24 arcminutes) and a mass of 1000 trillion solar masses. The '200 kpc' (650,000 light year) diameter reference is the central region estimated to contain 160 trillion solar masses from studying the lensing in that region.
*(actually I was looking at the Hubble image but my numbers are correct since they are from the paper, JWST image is about 2 arcminutes across, or 2 million light years across or 650kpc, so the 200kpc is about the central half)
Working out these numbers takes a bit of effort and I wish ESA and NASA did it for me!
Still wonder what the human eye could see sans the tech used to make these heavenly bodies visible - by necessity, not design.
Speaking of unseen dimensions, I'm reminded of the documentary about Dorothy Izatt's extraordinary photos. ('Capturing the Light'). The images in her still photographs and film were taken over close to a half century.
Stella Lansing, on the other side of North America, are took thousands of feet of interesting and inexplicable film.
Happy trails.
Paz y luz ✨️ to all
When a spiral galaxy with diameter 100.000 lightyears appears to fill 1 arcminute in the picture and is said to be one billion light years away, and I see a lot of full spiral galaxies in the background who appear to fill 1 arcsecond in the picture then they are 60 billion light years away, and that is just what it appears in all the JWST deep field pictures and it can't be that all of them are just gravitational lensed or less than 100.000 lightyears in diameter! Therefore, the theses that the universe is only 13.8 billion lightyears old is bs. Also, when JWST looks into the exact opposite direction and there are also galaxies appearing 60 billion lightyears away and more, so how come the opposite galaxies appear 120 billion lightyears from each other at a time when the universe was allegedly only some less that 1 billion years old and could have had a diameter of maximum 2 billion lightyears then.
Cool Video!
Bent light (gravitational lensing) should also affect the red shift. How do scientists account for this?
'Oh my God, we're running out of resources.'
Ur arrogant to think nobody is out there....
I'm not sure about this dark matter theory.
Ah! The Jubble space telescope!
4:55 Thanks to the side by side images, it's possible to to cross your eyes to achieve the virtual 3D centre image effect and then the reds REALLY stand out.
I'm using a 4K 50" monitor so I had to stand back about 8ft to make it happen.
Great talk. Are there any approximations on exposure time on these two images?
Answer The Hubble images were originally taken back in 2014, requiring some 122 hours of exposure time. The Webb images were taken earlier this year over the course of about 22 hours, allowing an entirely new set of galaxies to come into focus.
Good video+
Beside it is interresting that the effect is Still. After 9 years. Looks identical to me.
Webb and Hubble
Suggest you start calling it
Webble!
If memory serves, someone predicted gravitational lensing long before there was a telescope capable of seeing it.
Can anyone confirm that?
Einstein published in 1916 and predicted that massive objects, such as stars, could bend light rays passing nearby.
This prediction was verified by the observation of such bending of starlight near the Sun in 1919.
@@morningmadera of course it was. And then someone predicted that something really massive like a galaxy would bend the light enough that you would be able to see behind the galaxy.
Now here is where I do not trust my memory at all - perhaps you can help - didn't someone observe something behind a gravitational lens that was so faint the photons were so rare that in fact one was seeing the same photon in two slightly separated images? which is obviously Dark Magic if true. Or else my memory is just wrong.
@@DanBeech-ht7sw Didn't they find something like that with JWST?? and they time stamped/imaged it?? or is my memory failing me?? and wasn't there 3 images?? hmm have to go look, eeks
@@DanBeech-ht7sw prob not, but i did find this story very interesting, thank you for your time!!
Does lensing also affect time? You see this event here and now. And then over there you can see it again? I suspect that you can see a streak of that event streaking across some sky as the light takes different paths to your eyes. How small an open aperture can you get a very short-lived event?
It probably doesn't effect time but the gravity causing the lensing will. One thing to note is that the different paths are of different lengths and so each different lensed image we see of a Galaxy is of a different time relative to the Galaxy itself. If you can see an event in one image then it may occur months or years later in another image and if you can detect that then you have an important measurement.
lensing affects space, so it does affect time as well, since space and time are interwoven
there are examples of pictures of clusters that show the same supernova at different stages in the same image
example: search youtube for "Hubble sees 'evolving' supernova 3 times in same image"
@alphalunamare I mis-expressed my question, but you got to it. Thanks. That was what I was thinking of.
@@morningmadera There's a difference between apparent time, local time, and standard time.
@@greggweber9967 what? 😄
did I say that apparent time, local and standard are the same?
Interesting video. Volume is 250% of what I consider 'normal' though.
Yes, the breathless delivery, the constant, urgent hand gesturing and over-emphasis on every adjective have me reaching for the stop button.
@@MrDino1953
Bro. The kid's excited re: the subject matter. Oh. And people are different.
Either way, it's infinitely preferable to going full Karen in comments, especially when someone's giving their all.
To think we will never, ever, ever visit any of these places.
Maybe you won't. Astral projectors, see you there!
We will never ever reach our nearest star ~ 7 ly away.
@@abpccpba It's 4.2 light years away but if the galaxy was the size of the USA then our sun would be the size of a red blood cell. We humans are going nowhere.
How could anyone possibly think we are alone in the universe when it is that big
It must be absolutely packed with life in every calaxy we can see ,
containing millions or billions of stars , when theres billions of galaxys, It Blows my mind chris 🚀🛰🛰🌙🌞🌞🌞
since it takes millions and billions of years to travel or communicate with those galaxies, we might as well say that we're alone
we're alone even in our galaxy, since it takes thousands to tens of thousands of years to just send a signal to most of the stars.