Astronomers have been given the rare opportunity to study an extrasolar object after the recent discovery of the interstellar ...

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's ...

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

Astronomers tracking an interstellar object flying through the solar system think it comes from a star at least 8 billion ...

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

What at first seemed a routine detection of an object travelling through the solar system soon turned out to be anything but.

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

A rare interstellar comet is flying through our solar system. Here's how—and when—you might be able to see Comet ATLAS from ...

Dubbed 3I/ATLAS, it is blazing through our cosmic cul-de-sac at truly awe-inspiring speeds between the main asteroid belt and ...

Captured just days after its discovery, the images offer the clearest view yet of this rare visitor from beyond our solar system.

Astronomers have discovered yet another alien visitor to the Solar System.

I/ATLAS might be over 7 billion years old, a new study reports, which would make it the oldest comet known. But experts caution we need more data.