Dwarf Planet Eris Is Icy Double of Pluto: Astronomers from France have made the first accurate measurements of the distant dwarf planet Eris, and found that it's an almost exact doppelganger of the declassified ninth planet, Pluto.
Dwarf Planet Eris Is Icy Double of Pluto: Astronomers from France have made the first accurate measurements of the distant dwarf planet Eris, and found that it's an almost exact doppelganger of the declassified ninth planet, Pluto.