Unpopular opinion time, but someone has to say it: I think Pluto being reclassified as a dwarf planet was a great thing for our understanding of the solar system and for the former planet itself. Let ...

CNN — A large asteroid could be reclassified as a dwarf planet -- which could make it the smallest in the solar system -- after new research revealed it's shape, astronomers said on Monday. Nestled in ...

Add Yahoo as a preferred source to see more of our stories on Google. A view of a world with tan shades and a reddish area toward the bottom left of it. In August of 2006, astronomers at the ...

In the course of studying planets beyond our solar system (6,316 confirmed exoplanets and counting), scientists have discovered some very interesting systems. Consider TOI-201, a compact system ...

Add Yahoo as a preferred source to see more of our stories on Google. On January 5, 2005, astronomers at NASA discovered Eris, the second-largest dwarf planet in the solar system. Eris is just ...

Named for the ancient Greek god who presides over the afterlife, Pluto is now mostly known as the planet that lost its planethood 20 years ago. In August 2006, the International Astronomical Union, an ...

Twenty years after Pluto lost its planetary status, the debate continues as scientists still disagree over what defines a planet.

Artist’s impression of the surface of the dwarf planet Makemake (Credit: ESO/L. Calçada/Nick Risinger (skysurvey.org)) Astronomers have used three telescopes at ESO’s observatories in Chile to observe ...

But what exactly is a planet? It seems like an easy question. After all, you’re standing on one right now! But the scientific ...

WASHINGTON (Reuters) - Scientists have discovered the most distant object known in our solar system, so remote and unusual they chose the nickname "Farout" for the slow-moving, icy, pinkish dwarf ...