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

The Solar System seems calm, but that tranquility is fragile. Now imagine one day looking up and spotting something ...

New research says that Earth could be ejected from our solar system if a passing star was to come close enough.

For years, astronomers have been searching for a mysterious ninth planet lurking in the dark outer reaches of our solar ...

Recent observations have revealed carbon monoxide venting from the largest comet ever seen, providing clues about its origins ...

Solar System Planets. Astronomy articles on the eight planets, plus the two dwarf planets, Pluto and Eris. Great pictures of everything in the solar system. Updated daily.

It poses no threat to Earth, but this comet, called C/2014 UN271 (Bernardinelli-Bernstein), has enraptured astronomers ever ...

The first images released by the Vera C. Rubin Observatory show details of our Solar System with unprecedented clarity.