These things take millions of years to go from one stellar neighborhood to another, so this thing has likely been traveling ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

We have discovered two interstellar objects so far, ’Oumuamua and Comet 2I/Borisov. ’Oumuamua had no dust tail and a ...