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2026-10-13 19:08:23 UTC

ΛD ΛSTRΛ on Nostr: NASA’s James Webb Space Telescope has revealed an ancient galaxy cluster with an ...

NASA’s James Webb Space Telescope has revealed an ancient galaxy cluster with an unexpectedly dense concentration of dark matter, challenging theories about how the universe developed. The discovery also uncovered a surprising connection between scattered starlight and invisible dark matter that could transform how astronomers study the early cosmos. This image shows a distant galaxy cluster as it has been observed by NASA’s JWST. At over 10 billion light-years away, the cluster XLSSC 122 is the most distant known example of a cluster found to act as a strong gravitational lens, magnifying and distorting images of yet more distant galaxies behind it.