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

The James Webb Space Telescope captured images of galaxy cluster XLSSC 122, located over 10 billion light-years away. This hefty and concentrated structure is the most distant known example of strong gravitational lensing. Its advanced development challenges current theories of cosmic evolution.

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What changed

New observations of the XLSSC 122 cluster from the Cosmic Noon era have been presented.

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  1. JWST Images Reveal Mature Galaxy Cluster XLSSC 122

    The James Webb Space Telescope captured images of galaxy cluster XLSSC 122, located over 10 billion light-years away. This hefty and concentrated structure is the most distant known example of strong gravitational lensing. Its advanced development challenges current theories of cosmic evolution.

    What's confirmed:

    • The galaxy cluster XLSSC 122 is the most distant example of strong gravitational lensing with a galaxy cluster.
    • XLSSC 122 is located over 10 billion light-years away.
    • Research led by IPAC at Caltech revealed the cluster across three papers.
    • The cluster dates from the Cosmic Noon era.

    Still unconfirmed:

    • The cluster is abnormally well-developed for its time in the universe's history.
    • The discovery is reshaping the understanding of early galaxy evolution.
    confidence 95%