Images: Dwarf Planet Eris, Pluto's Cosmic Twin

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Artist's Impression of Dwarf Planet Eris

Credit: ESO/L. Calçada
This artist's impression shows the distant dwarf planet Eris. New observations have shown that Eris is smaller than previously thought and almost exactly…Read More »

the same size as Pluto. Eris is extremely reflective and its surface is probably covered in frost formed from the frozen remains of its atmosphere.   Less «
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