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 ...

WASHINGTON (Reuters) - Dwarf planet Eris, similar in size to its better-known cosmic cousin Pluto, has remained an enigma since being discovered in 2005 lurking in the solar system's far reaches.

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

The dwarf planet formerly known as Xena received a new name Thursday, while Pluto was given a number to reflect the loss of its status as a planet. Michael E. Brown, a professor of planetary astronomy ...