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 ...

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 ...

Astronomers witnessed planets colliding 11,000 light-years away, an event that could shed light on the collision that created Earth's moon.

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) ...

If you think you've met the wildest exoplanet yet, you haven't learned about TOI-4507 b. This strange world, which sits about 578 light-years from the solar system, breaks almost every known rule for ...

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

Astronomers studying the Kuiper Belt have detected a strange distortion that could point to an unknown planet lurking far beyond Neptune.

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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) ...

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

For the first time, scientists have mapped Uranus’s upper atmosphere in three dimensions, tracking temperatures and charged particles up to 5,000 kilometers above the clouds. Webb’s sharp vision ...