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Webb spots possible early-universe supernova just days after it happened
The James Webb Space Telescope (JWST) has detected a possible supernova in the early universe just days after the star exploded.
AI Summary
The James Webb Space Telescope identified a transient, designated AT 2026abck, in a star‑forming galaxy at redshift 5.017, marking a possible supernova that occurred only four to ten days earlier. This detection was made without relying on gravitational lensing, making it the earliest‑universe supernova observed so soon after the explosion. The finding was reported in a paper posted to the arXiv preprint server on September 29.
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