New photos from the recent 'blood moon' eclipse show that interstellar comet 3I/ATLAS may be turning green as it gets closer ...

I/ATLAS is a fast, ancient interstellar object. Its odd features fuel both scientific study and speculation. On July 1, ...

The comet will come closest to Earth on Oct. 20. There's hope that it may become bright enough to glimpse with the naked eye.

Comet 3I/ATLAS is the third ISO ever detected. It was discovered by the Asteroid Terrestrial-impact Last Alert System (ATLAS) ...

You have just a few weeks left to view the "comet of the century" making its 80,000-year orbit around Earth. Comet C/2023 A3 Tsuchinshan–ATLAS will be visible with the naked eye from Earth until late ...

Since its discovery, astronomers have been frantically trying to gather as much information as they can about the newest interstellar interloper dubbed 3I/ATLAS. It's been challenging, but they've ...

The latest images of comet 3I/ATLAS are in, delivering a glorious view of the interstellar object's burgeoning tail, courtesy ...

While the total solar eclipse was the celestial focus in April 2024, the "Devil Comet" also received attention from skywatchers. Known officially and scientifically as Comet 12P/Pons-Brooks, the rare ...

The eyes of every astronomer widened this year when an interstellar traveler was discovered in our solar system.