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The image is published now:

https://www.nasa.gov/image-feature/goddard/2022/nasa-s-webb-... ("NASA’s Webb Delivers Deepest Infrared Image of Universe Yet")

late edit: And now full-resolution versions have been published (largest is 4537 x 4630):

https://webbtelescope.org/contents/media/images/2022/038/01G...

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Same image, but from Hubble -

https://relics.stsci.edu/data/smacs0723-73/MAST/color_images...

(Found here https://www.reddit.com/r/space/comments/vwsswt/megathread_pr...)

Is the light bending around some gravitational point, or is that an* artifact of the telescope itself?

If the former, that is astounding.

Edit: nvm I think I figured it out myself. There are objects next to smeared galaxies that are not distorted. The distorted objects must be behind the gravitational field, and the un-distorted objects in front.

They said the bending isn't an artifact of the telescope.

Seems to be multiple objects creating gravitational lensing. I assume that is what's causing the weird smudged galaxy.

From the article: > The combined mass of this galaxy cluster acts as a gravitational lens, magnifying much more distant galaxies behind it.

It looks like there are undistorted galaxies right next to the distorted ones, overlapping even. That suggests it’s not just a telescope artifact.

It is a gravitational lens. A massive concentration of matter in between us and the galaxies behind it that bends the light and give us an extra magnification factor. Strange to look at, they can also boost the light gathering ability of the telescope and give us valuable information about the very early universe.

> This slice of the vast universe covers a patch of sky approximately the size of a grain of sand held at arm’s length by someone on the ground.

> The image shows the galaxy cluster SMACS 0723 as it appeared 4.6 billion years ago. The combined mass of this galaxy cluster acts as a gravitational lens, magnifying much more distant galaxies behind it

The vastness of it all is mind numbing, it gives me mixed feelings of awe, humility, and dread.

You can compare with the pre-JWST images here: https://archive.stsci.edu/prepds/relics/color_images/smacs07...

Link doesn't seem to be working for me sadly

Direct image links:

https://archive.stsci.edu/missions/hlsp/relics/smacs0723-73/...

Is each of those spirals really the size of our whole galaxy? And if we were to zoom in 100x more, would there be just as many galaxies to see, or is there a perceivable outer edge to our universe's expansion?

That and more. Currently we think there are 2 trillion of those little dots in the observable universe. There have been some very interesting whole sky surveys that have mapped many of them. The Sloan Digital Sky Survey has data on location, distance and spectroscopy on 50 million of the little buggers. They have some neat 3D maps, think milk being stirred into the black coffee of the vast.

I read the count of "observed" galaxies is 170 billion, i.e. extrapolating the deep field count. Certain assumptions about faint and redshifted galaxies increases that number to about trillion.

Early galaxies may not look as regular and spirally as recent galaxies. JWST will see more detail in the early universe to better quantify this.

Yes, if we were to take our best image ever, the Hubble eXtreme Deep Field and multiply it by the whole sky, we would likely see 176 billion galaxies using that same telescope and exposure. That could be considered a lower limit. But we also have models of mass and galaxy formation that suggest the number of galaxies within the observable universe is many times larger, maybe up to 2 trillion. Hubble cannot see everything at every wavelength, even if we have unobstructed line of sight to it.

And to answer the questions you edited in, yes, there is an edge to the universe. It is the literal edge of time, the moment when everything was one and infinite (a singularity, we think). This edge is 13.8 billion light years in every direction. As we look far away and back in time, we can see the whole history of everything, from just after the universe cooled and expanded enough to be transparent to light, to the first protogalaxies and all the development of everything up until our very noses.

Thank you for the answers. It's all amazing to think about. It seemed strange to me when reading your comment, for example, that the universe would look the same age in every direction. Why? Are we close to the center? And then it hit me (probably not for the first or last time): we can only see as far as light had time to travel here! In reality the universe just keeps going.

Possibly. The data is consistent with an infinite universe, that expanded, and so we can only see a finite portion of it (back to the CMB). It's also consistent with a finite universe, that expanded, and so we can only see a small portion of it...

Yup, we are at the center because we are the observer. Presumably everyone anywhere would appear to be at the center, just as you appear to be the center of your world and I appear to be the center of mine.

Looking this far into the past is partially about zooming in, and another part about the wavelength of the light. JWST being in infrared means that it can see things further away which have been redshifted so far that they are no longer visible to the human eye. As you look farther and farther, objects actually appear bigger, because the universe was smaller and the objects were closer at the time the light from them was emitted. At the end of it is the Cosmic Microwave Background, which is the first light that was able to travel when the universe became transparent enough that photons weren't immediately reabsorbed.

Angular Diameter Turnaround: https://xkcd.com/2622/.

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