California Institute of Technology
The Discovery of Eris, the Largest Known Dwarf Planet
Until the discovery of Eris, Pluto was known as the largest Keiper belt object. This dwarf planet has replaced Pluto in size and is accompanied by a satellite that has been given the name Dysnomia. Learn about this distant world here...
NASA
Nasa: A Cold New World
Quaoar, the most recent addition to our solar system, has displayed many planet-like characteristics but has yet to be named "the 10th planet." Learn more about the interesting find here. Many links to various sites on Quaoar and the...