The James Webb Space Telescope has identified the earliest known supernova, a star that exploded when the universe was roughly 730 million years old. The discovery traces back to March 14, 2025, when ...
Astronomers using NASA’s Chandra X-ray Observatory to observe galaxy Messier 83 (M83) spotted the unexpected explosive aftermath of a supernova. Typically, the aftermath of a stellar explosion is a ...
NASA’s James Webb Space Telescope has identified the red supergiant star that exploded as supernova SN 2025pht in galaxy NGC 1637, marking the first time JWST has detected a supernova progenitor star.