2026-02-23 19:59:42
The Type II SN 2025pht in NGC 1637 - A Red Supergiant with Carbon-rich Circumstellar Dust as the First JWST Detection of a #Supernova Progenitor Star: https://iopscience.iop.org/article/10.3847/2041-8213/ae04de -> Webb locates former star that exploded as supernova: https://esawebb.org/news/weic2604/ & https://science.nasa.gov/missions/webb/nasas-webb-telescope-locates-former-star-that-exploded-as-supernova/ -
Webb shows star was surrounded by a vast shell of carbon-rich dust.
















