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

The comet should be visible by telescope through September, before it gets too close to the sun, and reappear in December on ...

NASA has discovered a new interstellar comet that's currently located about 420 million miles away from Earth. The space ...

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

Astronomers have discovered a rare instance of a interstellar comet speeding through the solar system. The 3I/ATLAS was first ...

Astronomers are tracking a newly spotted comet hailing from parts unknown, only the third time such an interstellar object ...

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 ...