What is the name of the largest known dwarf planet?
January, 5: The largest known dwarf planet in the Solar System was discovered
Eris was originally discovered on January 5, 2005, by a team led by Mike Brown. The original photographs were taken in 2003, but the object was not identified until 2 years later. It was given the provisional name of 2003 UB313. Subsequent observations revealed a moon in October 2005, which was named Dysnomia two years later. Eris was one of the originally classified dwarf planets by the International Astronomical Union in 2006.