New simulations have narrowed down where the newly discovered interstellar comet 3I/ATLAS likely came from, revealing it could be more than 3 billion years older than the solar system.

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

The Voyager spacecraft, Voyager 1 and 2, have traveled farther than any human-made objects in history, entering interstellar ...

Aster G. Taylor is a Ph.D. candidate in Astronomy and Astrophysics at the University of Michigan, Ann Arbor and a 2023 Fannie ...

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

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

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

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

A comet has entered the Solar System from interstellar space and will pass through the inner planets later this year, NASA ...

An "interstellar object" is speeding toward the inner solar system, where Earth is located, astronomers have confirmed.

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

A mystery interstellar object discovered last week is likely to be the oldest comet ever seen – possibly predating our solar system by more than three billion years, researchers say. The "water ...