An interstellar comet observed last year may predate our solar system by billions of years, traveling on extraordinary galactic paths unlike anything previously encountered.

As interstellar comet 3I/ATLAS began moving away from the Sun in December 2025, astronomers took the opportunity to turn NASA’s powerful James Webb Space

All signs were already indicating that interstellar comet 3I/ATLAS was unlike anything we'd ever seen.

The evidence is mounting: this interstellar visitor is even older and weirder than anyone thought