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

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

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

When the news started to spread on July 1, 2025, about a new object that was spotted from outside our solar system, only the ...

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

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

How do we know 3I/ATLAS, also called comet C/2025 N1 (ATLAS), is interstellar? Will it strike Earth? Can we visit it? Here ...

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

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

The interstellar comet 3I/Atlas is the fastest and largest of its kind, giving astronomers a rare glimpse into extrasolar ...

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.

The third object known to have entered the Solar System from interstellar space has an origin unlike either of its ...