Another challenge to current cosmology

[Pinball1970]

The JWST has recently observed galaxies that appear to be too massive and too structured to fit with the current cold dark matter model, LambdaCDM.

This is another study from a different instrument (Chandra X ray) illustrating the same problem.

https://phys.org/news/2023-09-titanic-galaxy-cluster-collision-early.html

 

[Pinball1970]

Here we have a couple more, I posted this on another site. This is exactly what Webb was designed to do.
These galaxies formed about 300 M years after the BB.
How far back is the JWST going to push it?

Earliest, most distant galaxy discovered with James Webb Space Telescope

The two earliest and most distant galaxies yet confirmed, dating back to only 300 million years after the Big Bang, have been discovered using NASA’s James

www.cam.ac.uk

 

[C C]

Despite the judicious conservative cautions about not abandoning the boat ("it's still sea-worthy"), something significant is probably going to have to change, if JWST keeps battering against the hull. Analogous to archeology about the earliest human occupation the New World -- how the "Clovis first" model hung-on for decades in skeptical defiance of traces suggesting an older presence, until evidence of the latter has apparently become overpowering.
_

 

[Pinball1970]

Despite the judicious conservative cautions about not abandoning the boat ("it's still sea-worthy"), something significant is probably going to have to change, if JWST keeps battering against the hull. Analogous to archeology about the earliest human occupation the New World -- how the "Clovis first" model hung-on for decades in skeptical defiance of traces suggesting an older presence, until evidence of the latter has apparently become overpowering.
_

Sorry I missed your reply.

I will respond soon, Hubble score a hit for DM but these seem to be in the minority.