James Webb Space Telescope finds 2 of the most distant galaxies ever seen

[Admin]

We see these galaxies as they were over 13.45 billion years ago, just between 330 and 350 million years after the Big Bang.

James Webb Space Telescope finds 2 of the most distant galaxies ever seen : Read more

 

[rod]

Space.com reported, "These two galaxies, magnified by a gravitational lens, have properties that support the basic picture of galaxy formation as described in the Big Bang theory...Wang and her team were able to identify the lensed images of two high-redshift galaxies. One, designated UNCOVER-z13 ("z" is shorthand for "redshift"), has a redshift of 13.079, confirming it to be the second most distant galaxy known...The other galaxy recently discovered, UNCOVER-z12, has a redshift of 12.393, placing it in fourth place in the all-time list of most distant galaxies. We see this realm as it was just 350 million years after the Big Bang...What marks the two UNCOVER galaxies out as different is their appearance. Other galaxies seen at similarly high redshifts seem to be point-like, indicating they are very small — just a few hundreds of light years across. The UNCOVER galaxies, on the other hand, have structure. "Previously discovered galaxies at these distances … appear as a dot in our images," Wang said in a statement. "But one of ours appears elongated, almost like a peanut, and the other looks like a fluffy ball." These galaxies are also bigger, with UNCOVER-z12 sporting an edge-on disk about 2,000 light years across, which is six times larger than other galaxies seen in this era…Although the dichotomy in galaxy properties, even at this early stage in the universe, is eye-opening, both of the newfound realms have general characteristics that are strongly supportive of the Big Bang model…"

My observation, cosmology calculators (example, https://lambda.gsfc.nasa.gov/toolbox/calculators.html, and https://www.kempner.net/cosmic.php) show the angular size distance. It does appear that problems exist for the BB cosmology concerning high redshift galaxy sizes and the one arcsecond map size to redshift number as well as comoving radial distances where space expands much faster than c velocity today. At the comoving radial distances, the large red shift galaxies cannot be observed and measured, thus any cosmic evolution using those distances is not verifiable. JWST does not see the pristine, primordial gas clouds said to exist in the early universe created during BBN, only metal poor but no metal free gas clouds and no Population III stars confirmed.

 

[rod]

This report reflects some of what I mentioned in post #2 concerning different distances used in BB cosmology model to explain the expanding universe.

Second-most distant galaxy discovered using James Webb Space Telescope

The second- and fourth-most distant galaxies ever observed have been discovered in a region of space known as Pandora's Cluster, or Abell 2744, using data from NASA's James Webb Space Telescope (JWST).

phys.org

"Because the light from these galaxies had to travel for so long to reach Earth, it provides a window into the past. The research team estimates that the light detected by JWST was emitted by the two galaxies when the universe was about 330 million years old and traveled for about 13.4 billion light years to reach the JWST. But, the researchers said, the galaxies are currently closer to 33 billion light years away from Earth due to the expansion of the universe over this time."

The 33 billion light years distance opens the door to space expanding more than 2x c velocity and cosmic evolution taking place that is not visible or observable today from Earth. Small items like this in BB cosmology I feel should be clearly documented to the public, IMO.

 

[Jan Steinman]

How does gravitational lensing effect redshift? Is it well-characterized?