The interstellar comet 3I/ATLAS made its closest approach to Earth today (Dec. 19, 2025). Here's the latest news you need to ...

It came from outer space. Interstellar space, to be precise. From somewhere beyond the influence of our sun, possibly from ...

Today is one astronomers, stargazers and alien conspiracy theorists have been waiting for: interstellar comet 3I/ATLAS is as ...

The latest visitor from deep space is leaving a mark that stretches far beyond its icy core. Interstellar comet 3I/ATLAS is ...

Comet 3I/ATLAS is a rare visitor passing briefly through our solar system. Here’s how to find it in the night sky—and what ...

Get the latest update on Comet 3I/ATLAS as it makes a close approach today, including what it means and why skywatchers are ...

Last Friday, the interstellar comet designated 3I/ATLAS completed its closest approach to Earth without crashing into us or depositing an invading armada.

I/ATLAS comet is the 3rd-ever object discovered that originated from outside our solar system. It's not a threat, approaches ...

We are in Germany and it's winter, so we can confidently assume that it is cold, with possible snow covering the fields and roofs of houses. Here we meet the protagonist of this story, farmer and ...

Researchers have identified a distinctive ultraviolet signature of water in the interstellar comet known as 3I/ATLAS.

Scientists have sought out and detected radio emissions from from interstellar comet 3I/ATLAS, all but confirming that it has natural origins.

In the spirit of the season, the interstellar comet 3I/ATLAS is changing color as it leaves the sun behind — shifting from a ...