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

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, ...

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 ...

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

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

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

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

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

All eyes are on Comet 3I/Atlas as astronomers worldwide chase the exotic ice ball through our solar system ...