New images of Uranus show the planet in blue, the upper atmosphere in red, auroras in lighter red spots and rings in white. ESA / Webb, NASA, CSA, STScI, P. Tiranti, H. Melin, M. Zamani (ESA / Webb) ...

There's a whole slew of objects that astronomers aren't sure whether to classify as "failed stars" or "overgrown planets." ...

A strange 200 million-year-old object with the mass of a planet has been discovered 20 light-years from Earth, outside our solar system. The "rogue," as it's referred to by researchers, is producing ...

New research using the James Webb Space Telescope offers the most detailed portrait yet of how auroras form on Uranus.

Astronomers have discovered a planetary system that appears to flip one of astronomy's most reliable rules on its head; it orbits a small, faint red star known as LHS 1903. LHS 1903 is a cool M-dwarf ...

Far beyond the bright planets, in the dim outskirts of the Solar System, astronomers keep stumbling on objects that refuse to follow the rules. Around Neptune in particular, a handful of newly charted ...

Add Yahoo as a preferred source to see more of our stories on Google. This artist's impressions shows the unusual set up of the solar system around the LHS 1903 star (Handout) (Handout/ESA/AFP) ...

Astronomers surveying the outer solar system have revealed that a rare object far beyond Neptune is moving in sync with the eighth planet in an unexpected way. Called 2020 VN40 and first discovered in ...

Puzzling finds range from rocks that look like turtles or sharks to a lightsaber. But while the Star Wars weapon is actually a titanium tube dropped by the rover and containing a rock sample, other ...

Surprised astronomers said Thursday they have discovered a star with planets in a bizarre order that defies scientific expectations -- and suggests these faraway worlds formed in a manner never ...