Interstellar comet 3I/ATLAS is now on its way out of our solar system, never to return. The comet was only the third-ever ...

Observing the interstellar visitor after its closest approach, astronomers found that its composition appears to have changed ...

You've got time to wave goodbye to our interstellar visitor.

Wherever 3I/ATLAS came from, the conditions are very different to our own.

Add Yahoo as a preferred source to see more of our stories on Google. Remember 3I/ATLAS? Yes, the interstellar comet that made plenty of headlines in 2025 is still romping through our solar system.

A deep image of interstellar Comet 3I/ATLAS captured by the Gemini Multi-Object Spectrograph (GMOS) on Gemini South at Cerro Pachón in Chile, one half of the International Gemini Observatory and ...

Add Yahoo as a preferred source to see more of our stories on Google. Pictures of 3I/ATLAS will soon be all we have to remind us of the strange interstellar comet and its brief visit to our cosmic ...

2025 was a big year for astronomy, marked by major technological milestones and rare celestial events. We got our first look at images from the Vera C. Rubin Observatory, which will forever change how ...

The Subaru Telescope observed the interstellar comet 3I/ATLAS on January 7, 2026, after it made its closest approach to the ...

James is a published author with multiple pop-history and science books to his name. He specializes in history, space, strange science, and anything out of the ordinary.View full profile James is a ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. (CNN) — The Hubble Space Telescope and ...