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

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

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

The space agency spotted the quick-moving object with the Atlas telescope in Chile earlier this week, and confirmed it was a ...

There's a new interstellar comet in the neighborhood! Known as 3I/ATLAS, this comet poses no threat to Earth – but it does ...

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

NASA has discovered 3I/ATLAS, only the third known interstellar object, now passing through our solar system from the ...

Rocky bodies called protoplanets were thought to have formed slightly earlier in the inner solar system than those beyond the ...

A quiet, glowing gas cloud has been hiding in plain sight not far from Earth. For decades, astronomers have predicted that ...

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

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

A new investigation into old Kepler data has revealed that a planetary system once thought to house zero planets actually has ...