Beyond the familiar planets lies a fascinating frontier filled with icy worlds, mysterious orbits, and cosmic curiosities. These are the dwarf planets—small but mighty members of our solar system that ...

American astronomers have discovered a new dwarf planet at the edge of the solar system, which has already been named 2017 OF201. This object is known to have a huge orbit and a potential size, close ...

Ammonite was discovered using the Subaru Telescope in Hawaii, with follow-up confirmation from the Canada-France-Hawaii Telescope. Its orbit and size officially qualify it as a distant dwarf planet.

The dwarf planet newly named 2014 UZ224 is so small – just 330 miles across – that the team is not certain it will retain its status as a dwarf planet, but for now, it joins Makemake, Sedna, Eris and, ...

The discovery images of 2012 VP113. The dwarf planet moved between each image as seen by the red, green and blue dots. Credit: Scott S. Sheppard/Carnegie Institution for Science Even after all these ...

On August 24, 2006, our solar system lost a planet. It wasn't by cataclysmic destruction, but rather by the vote of the International Astronomical Union, which declared that Pluto, considered the ...

The search for aliens has led astronomers to scour the farthest reaches of the cosmos for signs of life. But a new study suggests that we might not need to look so far from home. According to NASA ...