Scientists have observed for first time the very early stages of a supernova — death of a star — with a massive star ...

The supernova was the death of a red supergiant star 500 times larger than the sun, in a galaxy just 22 million light-years ...

Interstellar comet 3I/ATLAS is 'exploding' with activity. See dramatic new images of its growing ion tail and learn how NASA ...

When this shock reaches the surface, it releases an enormous burst of energy. The star brightens dramatically, becoming visible as a supernova. For a short period, astronomers can study the initial ...

It confirms that stars beyond our Solar System can unleash similar violent eruptions, bursts powerful enough to strip entire planetary atmospheres.

Swift observations with the European Southern Observatory’s Very Large Telescope (ESO’s VLT) have revealed the explosive ...

Astronomers spotted the largest flare ever released from a supermassive black hole as it snacked on a giant star.

Swift observations with the European Southern Observatory's Very Large Telescope (ESO's VLT) have revealed the explosive death of a star just as the ...

WASHINGTON - Scientists are observing the most energetic flare ever seen emanating from a supermassive black hole, apparently ...

The Roman telescope will track 100,000 cosmic explosions, revealing how the early universe expanded and offering new clues ...

A novel imaging technique used for the first time on a ground-based telescope has helped a UCLA-led team of astronomers to achieve the sharpest-ever measurement of a star's surrounding disk, revealing ...