Pluto, Makemake and Eris constitute 'plutoids' (Pluto-like objects in the Kuiper Belt, a girdle of icy objects beyond the orbit of Neptune). The fourth dwarf planet is Ceres, which inhabits the ...

In 2006, the International Astronomical Union (IAU) famously demoted Pluto to a dwarf planet. Things have been a bit of a mess since then — so is it time to redefine the planet?

Tancredi, G. (2010) Physical and Dynamical Characteristics of Icy “Dwarf Planets” (Plutoids) Icy Bodies of the Solar System. Proceedings of the International Astronomical Union, IAU Symposium, 263, ...

"Pluto is additionally recognised as an important prototype of a new class of Trans-Neptunian Objects: plutoids." The other four dwarf planets in the solar system are Ceres, Haumea, Makemake and Eris.

Those who miss the good old days when Pluto was still a planet can celebrate the fact that 90 years ago, on February 18, 1930, the small, rocky space object was discovered.

Pluto Gets the Call Adam Rex, illus. by Laurie Keller. Beach Lane, $17.99 (48p) ISBN 978-1-5344-1453-2 ...

BYU Orchestras Director Kory Katseanas stood at the front of the practice room before the BYU Chamber Orchestra's 'Sky Mountain Light World' concert Friday, March 22.

'Plutoids' is a 'celebration of the importance of astronomy in our society,' according to the program notes, while 'Above the Brightness of the Sun' is a meditation on the story of Joseph Smith.

Article citations More>> Tancredi, G. (2010) Physical and Dynamical Characteristics of Icy “Dwarf Planets” (Plutoids) Icy Bodies of the Solar System. Proceedings of the International Astronomical ...

Plutoids will be defined as celestial bodies in orbit around the Sun farther away than Neptune. They must have near-spherical shape, and must not have swept up other, smaller objects in their orbits, ...

Shell Worlds – An Approach To Terraforming Moons, Small Planets and Plutoids One big problem with the traditional terraforming approach is finding planets with workable initial parameters: large ...