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

In the outer reaches of our solar system, far beyond the orbit of Pluto, lies Sedna, one of the most mysterious objects ever ...

The Solar System seems calm, but that tranquility is fragile. Now imagine one day looking up and spotting something unfamiliar in the sky. A tiny speck grows larger until it becomes clear, a planet ...

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

NASA’s James Webb telescope captured its first direct image of a distant gas giant, revealing groundbreaking insights into ...

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.