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

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

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

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

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

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, ...

Astronomers manning an asteroid warning system caught a glimpse of a large, bright object zipping through the solar system ...