The comet broke into pieces after making a close approach around the sun in October 2025.

The interstellar visitor may still have a few things to tell us before it leaves our solar system.

Comet C/2025 K1 (ATLAS) fragmented after its October 2025 solar approach, with telescope observations documenting multiple ...

NASA's James Webb Space Telescope has spotted a young star flinging heat-formed crystals outward on a cosmic conveyor belt, ...

NASA’s Transiting Exoplanet Survey Satellite has once again surprised astronomers by tracking interstellar comet 3I/ATLAS, a ...

A comet from another star system, known as 3I/ATLAS, is giving astronomers a rare chance to study an object that began its journey billions of years ago, far beyond our solar system. “This comet in ...

After years of speculation, scientists finally believe they have figured out the crystal conundrum thanks to new imaging from ...

This cosmic question mark, seen in 2024, is courtesy of galaxy cluster MACS-J0417.5-1154, which is so massive that it is ...

Astrophysicists are scrambling to study an ancient comet from another star system that entered the solar system this year, and which has already swung past Mars. Dubbed 3I/ATLAS, the comet poses no ...

Two bright green comets are streaming through the skies and are visible to skygazers in the Northern Hemisphere. Both hail from the outer edges of our solar system — possibly what's known as the Oort ...