LOS ANGELES — A distant, icy rock whose discovery shook up the solar system and led to Pluto’s demise as a planet has been given a name: Eris. The christening of Eris, named after the Greek goddess of ...

'Xena', the lonely rock at the edge of the solar system that caused Pluto's downfall has now been officially named Eris after the Greek goddess of strife. "Eris caused strife and discord by causing ...

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A large icy object that helped spark the debate over Pluto’s status has officially been named Eris, after the Greek goddess of discord. The object had been known as 2003 UB313 since its discovery was ...

The International Astronomical Union has announced that the dwarf planet known as Xena since its 2005 discovery has been named Eris, after the Greek goddess of discord. Eris's moon will be known as ...