The solar system’s largest known dwarf planet is discovered.
The discovery of “Eris” ultimately lead to the International Astronomical Union (IAU) downgrading Pluto, which has roughly the same size, to a dwarf planet.
The solar system’s largest known dwarf planet is discovered.
The discovery of “Eris” ultimately lead to the International Astronomical Union (IAU) downgrading Pluto, which has roughly the same size, to a dwarf planet.
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