During September's total lunar eclipse, astronomers captured rare images of interstellar comet 3I/ATLAS glowing green, ...

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

But over the summer, 3I/ATLAS, has plunged toward the inner solar system—and the fireworks show has begun in earnest. When ...

The images of Comet 3I/ATLAS were captured by the Gemini South telescope at Cerro Pachón in Chile on Aug. 27 as the icy ...

The comet, which poses no risk to Earth, first burst onto the scene July 1, spotted by NASA’s ATLAS survey telescope in Chile ...

New photos captured during the recent "blood moon" total lunar eclipse show that the interstellar comet 3I/ATLAS may be ...

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

New images reveal interstellar comet 3I/ATLAS beginning to grow a signature tail as it zooms closer to the sun ahead of a ...

This quiz invites you to chase comets through time and space, from ancient omens to modern scientific marvels.

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

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

A new image shows the growing tail of a comet from another star system streaking across our solar system. The image of comet ...