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 ...

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

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 ...

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

Researchers for NASA have identified a new planet outside of our solar system, also known as an exoplanet.Officials said they ...

The monstrous 85-mile-wide comet C/2014 UN271 is the second most distant body originating from the Oort Cloud found to be ...

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.

Just weeks after Sierra Space Corp. publicly launched operations at a manufacturing facility in Centennial, the aerospace ...