Everyone's favorite dwarf planet, Pluto, was discovered just 95 years ago. Here's the story of how the once-ninth planet was ...

He named it Ceres, after the ... Belt—objects such as Pluto and Eris—the International Astronomical Union in 2006 recommended that they be called "dwarf planets"—much as asteroids are ...

this time as a dwarf planet — not quite a planet, but not quite an asteroid, either. Now Ceres had to share the spotlight with Pluto and the rest of the dwarf planets out there. And at just 600 ...

The newly-spotted dwarf planet ... Eris, Makemake and 2007 OR10 from Earth to try to understand what the distant worlds might be like. However, last year, NASA's New Horizons spacecraft flew by ...

Gonggong is a dwarf planet and a member of the scattered disc beyond Neptune. As of 2019, its distance from the Sun is 88 AU, and it is the sixth-farthest known Solar System object.

A blue atmosphere, smooth areas, and youthful mountain ranges - this dwarf planet is full of surprises. When NASA's New Horizons probe flew past Pluto in July 2015, the images it returned astonished ...

Pluto, Eris, Ceres, Makemake, Haumea, and five others meet Brown's "near certainty" criteria - in other words, they're definitely dwarf planets and not comets or some other astronomical object.

They got kicked out soon, but then when we started being able to see asteroids, Ceres, Vesta ... And if you are still a Pluto-is-a-planet holdout, like we were, [Michael]’s argument that ...

Combination of Cosmic Processes Shapes the Size and Location of Sub-Neptunes Mar. 17, 2025 — A combination of cosmic processes shapes the formation of one of the most common types of planets ...

A surprising chemical difference between Pluto and Sedna, another dwarf planet in the distant Kuiper Belt, is helping scientists nail down their respective masses, a new study reports. The Kuiper ...

Pluto is not very big. It is only half as wide as the USA and is smaller than our moon. The solar system contains hundreds of dwarf planets, including Ceres, which can be found in the asteroid belt.