New JWST images of abnormally well-developed galaxy cluster open up the 'cosmic noon' frontier

Article excerpt

A stunningly concentrated and hefty galaxy cluster, from a time in the universe's history when such massive structures aren't expected to have fully formed yet, is challenging cosmic evolution theories. Across a series of three recent papers, a team led by researchers from IPAC, a science and data center for astrophysics and planetary science at Caltech, have revealed that the cluster is the most distant example of strong gravitational lensing with a galaxy cluster.