We've only known about its existence for a few short weeks, and already astronomers have been able to learn a lot about the mysterious interstellar comet 3I/ATLAS.

Interstellar objects are visitors from solar systems beyond our own, and the third ever such object, known as 3I/ATLAS, has ...

New simulations have narrowed down where the newly discovered interstellar comet 3I/ATLAS likely came from, revealing it ...

Astronomers using the observatory in Hanle, Ladakh, have successfully photographed the interstellar comet C/2025 N1 (ATLAS), ...

Astronomers have spotted a new interstellar object — the third of its kind ever seen — shooting towards us through the solar ...

Now, using the U.S. National Science Foundation's (NSF) Gemini North telescope in Hawaii, astronomers have captured the first detailed image of this cosmic interloper.

Scientists discover 3I/ATLAS, a possible 7-billion-year-old comet from deep space. It may rewrite what we know about the ...

However, new research has shown this potentially "water ice-rich" visitor could be even more extraordinary than initially ...

Harvard astronomer Avi Loeb suggests that if interstellar object 3I/ATLAS isn't a comet, nor an asteroid, it may have been ...

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen—possibly predating our solar ...

Late in the evening on July 1, a telescope in Chile that is part of the global, NASA-funded Asteroid Terrestrial-Impact Last ...

NASA confirms the arrival of 3I/ATLAS, the third interstellar object. The ATLAS project spotted it in June 2025. Its speed ...