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Webb spots possible early-universe supernova just days after it happened

Image: Phys.org

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  • Phys.org · October 13, 2026 14:50
    The James Webb Space Telescope (JWST) has detected a possible supernova in the early universe just days after the star exploded. Called AT 2026abck, the transient lies in a star-forming galaxy at a redshift of 5.017 and was found without the help of gravitational lensing. JWST observations suggest…