- All Hail Eris and Dysnomia
 - Sky & Telescope article about the classification and naming of 2003 UB313, Eris, and its satellite, Dysnomia. - Astronomers Discover "10th Planet"
- 2005 Sky & Telescope article about the discovery made with the 48-inch Samuel Oschin Telescope at Palomar Observatory and the 8-meter Gemini North telescope on Mauna Kea, Hawaii, of the of largest Kuiper Belt object (KBO) to date.
- Battle of the Planet Names, The
- What would you name 2003 UB313? Submit your ideas to New Scientist for the tenth planet's permanent name.
- Eris (Dwarf Planet) - Wikipedia
- Article about Eris, the largest known dwarf planet in the solar system. Learn about the physical characteristics of the trans-Neptunian object that was a.k.a. 2003 UB313, Xena, Planet X, and Lila.
- Science@NASA: 10th Planet Discovered
- Article about the discovery of the Kuiper Belt object that is about one and a half times the size of Pluto.
- scienceNOW: 10th Planet
- NOVA scienceNOW segment examines how a stunning discovery at the far reaches of our solar system raises questions about what makes a planet a planet. Also, astronomer Michael Brown of Caltech answers viewer questions about the 10th planet.
- The Discovery of Eris, the Largest Known Dwarf Planet
![[*]](http://au.i1.yimg.com/aunz.yimg.com/i/rating2.gif) - Caltech astronomer Mike Brown's page for the newly discovered dwarf planet Eris (a.k.a. Xena, 2003 UB313, and the 10th Planet), which is the largest object found in orbit around the Sun since the discovery of Neptune.
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