The JWST found a galaxy cluster from 10 billion years ago that's far more developed than it should be, according to cosmological models. The cluster is also the most distant strong gravitational lens that we know of. Detailed observations across the spectrum show that the cluster is still undergoing...
Another Early Universe Surprise from the JWST: A Mature Galaxy Cluster
By system
June 22, 2026 •
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Original source:
Universe Today
