Space.com
• Keith Cooper
JWST confirms earliest-known supernova, detects its host galaxy from the Cosmic Dawn
James Webb has confirmed the earliest-known supernova as the source of a gamma‑ray burst and, for the first time at this distance, detected the event's host galaxy. The explosion occurred when the universe was roughly 730 million years old (≈13 billion years), and Webb's rapid follow-up corroborated other observations.
