The interstellar comet 3I/ATLAS, a rare visitor from outside the Solar System, might have been spewing gases for months ...

3I/ATLAS, an interstellar object currently zipping through the solar system, is capturing the attention of astronomers, the public and even most of our deep space assets. Its hyperbolic orbit tells us ...

A telescope in Chile recently glimpsed 3I/ATLAS' glowing tail, which observations reveal has grown as the interstellar object ...

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.

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

Comet 21p/Giacobini-Zinner is a highlight of September 2018 skywatching. See its orbit in this animation. Credit: Space.com / animation courtesy: NASA/JPL-Caltech / produced and edited by Steve Spalet ...

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

Amid the season with at least one meteor shower occurring every night, interstellar comet 3I/ATLAS may become visible to us ...

CAPE CANAVERAL, Fla. — Telescope observations reveal a growing tail on the comet that’s visiting from another star.

It is too late to visit the interstellar comet 3I/ATLAS, but successors are within reach. This has been confirmed by a ...

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

Two more of NASA's space telescopes got another look at comet 3I/ATLAS, an interstellar interloper that captured the world's attention in July 2025.