The Sun, our life-giving star, is slowly dying. In about 5 billion years, it will exhaust its fuel and transform into a red giant, altering the solar system forever. But long before that, the Sun’s ...

Why is Mars barren and uninhabitable, while life has always thrived here on our relatively similar planet Earth?

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

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

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system.

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

Astronomers have discovered a new interstellar comet passing through our solar system, marking the third interstellar object ...

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

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

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid ...

Experts have confirmed that the mysterious object hurtling towards us, previously dubbed A11pl3Z, is an "interstellar object.

For only the third time in history, astronomers have detected a new interstellar visitor — an object from another star — blitzing into our solar system.