The dwarf planet that demoted Pluto
When I was in school, there were nine planets in the solar system: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, and Pluto. At about the same size as Pluto and three times farther than it from the sun, Eris is one of the largest known dwarf planets in our solar system. While YaleNews’ release about the announcement was titled “Discovery of a New Planet in the Outer Solar System,”, The New York Times’ headline read “Astronomers find another planet in solar system”. The question was put to a vote by the end of the meeting, creating three new categories for objects in the solar system – planets, dwarf planets, and small solar system bodies. Fitting name On September 14, 2006, the IAU announced that the dwarf planet nicknamed Xena will be called Eris, after the Greek goddess of discord.
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