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JWST detects possible early-universe supernova days after explosion
The James Webb Space Telescope has captured a candidate supernova in the early universe, identified merely days after the stellar explosion occurred. Designated AT 2026abck, the transient event resides within a distant star-forming galaxy at a redshift of 5.017. Remarkably, this discovery was made without the amplification aid of gravitational lensing. According to observations detailed in a recent preprint paper, the telescope caught the phenomenon within four to ten days of the actual explosion.