Webb Reveals Early-Universe Prequel to Huge Galaxy Cluster. The seven galaxies highlighted in this James Webb Space Telescope image have been confirmed to be at a distance that astronomers refer to as redshift 7.9, which correlates to 650 million years after the Big Bang.
Stress testing ΛCDM with high-redshift galaxy candidates | Nature Astronomy
Rapidly growing primordial black holes as seeds of the massive high-redshift JWST Galaxies
