Tracking comets accurately is hard. A new effort with the U.N. and NASA aims to better chart these visitors using 3I/ATLAS.

In the most recent observation Nov. 30, 3I/ATLAS was approximately 178 million miles from Earth. Astronomers confirm that the ...

The interstellar comet will pass safely by Earth, giving astronomers their best chance to study it up close. Interstellar ...

With 3I/ATLAS just days away from making its closest approach to Earth, agencies around the globe are conducting the largest ...

A rare interstellar comet will sweep past Earth this week at a safe distance, giving scientists a brief chance to study ...

A rare interstellar comet will sweep past Earth this week at a safe distance, giving scientists a brief chance to study ...

Over a month after its perihelion, or closest pass of the Sun, observations still clearly show 3I/ATLAS' "anti-tail." ...

Wondering what 3I ATLAS is all about? Here's what to know as interstellar comet 3I/ATLAS nears Earth this week, when to watch ...

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

On July 1st, 2025, the third interstellar object (ISO) ever detected was seen making its way through our solar system.

The interstellar comet 3I/ATLAS will pass Earth safely on 19 December, giving astronomers a rare chance to study a visitor ...

The interstellar comet known as 3I/Atlas will pass within 167 million miles of our planet Friday – the closest it gets on its ...