By Will Dunham WASHINGTON (Reuters) -Astronomers are tracking a newly spotted comet hailing from parts unknown, only the ...

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

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

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar ...

The newly discovered interstellar visitor is just the third of its kind and fascinates astronomers who hope to learn from it ...

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