Change Among the Plutoids

Recent measurements of Eris, the dwarf planet discovered in 2005 which led to the reclassification of Pluto, indicate that the object may be smaller than originally believed. Eris’s high density means that the plutoid is most likely smaller, although more massive, the Pluto, which may now be the largest of the dwarf planets. The new measurements of Eris were conducted during an occultation by the plutoid of a star in Cetus, observed in the Chilean Andes on November 6.

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