Supernova - Wikipedia
Supernovae can expel several solar masses of material at speeds up to several percent of the speed of light. This drives an expanding shock wave into the surrounding interstellar medium, sweeping up an …
NASA’s Webb Identifies Earliest Supernova to Date, Shows Host Galaxy
2 days ago · NASA’s James Webb Space Telescope has observed a supernova that exploded when the universe was only 730 million years old — the earliest detection of its kind to date. Webb’s crisp near …
Supernova | Definition, Types, & Facts | Britannica
Nov 21, 2025 · supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level. The term supernova is derived from nova …
Webb identifies earliest supernova to date, shows host galaxy
2 days ago · The NASA/ESA/CSA James Webb Space Telescope has confirmed the source of a super-bright flash of light known as a gamma-ray burst, generated by an exploding massive star when the …
The James Webb Space Telescope just found the oldest supernova …
1 day ago · The James Webb Space Telescope detected the oldest supernova on record. It was seen accompanied by a gamma-ray burst, signaling the core collapse of a massive star and the probable …
JWST Detects Record-Breaking Supernova That Erupted Right at The …
1 day ago · A faint, tiny flash of red light glimpsed at the Cosmic Dawn more than 13 billion years ago has smashed the record for the earliest supernova ever observed.
The JWST just identified a supernova from only 730 million years after ...
14 hours ago · Supernovae aren't one of the JWST's main science themes, but the perceptive telescope is full of surprises. Recently, it pinpointed a single star in a galaxy when the universe was only about …
ESA - Webb identifies earliest supernova to date
1 day ago · The NASA/ESA/CSA James Webb Space Telescope has confirmed the source of a super-bright flash of light known as a gamma-ray burst, generated by an exploding massive star when the …
NASA’s JWST Spots Most Ancient Supernova Ever Observed
1 day ago · The James Webb Space Telescope has observed the oldest known supernova—the explosive death of a star that lived when the universe was only 730 million years old. The ancient …
What Is a Supernova: Types, Facts, and Famous Explosions
Oct 3, 2025 · What is a supernova explained simply? Learn how stars explode, the types of supernovae, what they leave behind, and the most famous supernovae in history.