Pluto
Videos
Pluto is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known
Clyde Tombaugh, in Kansas
Sputnik Planitia is covered with churning nitrogen ice "cells" that are geologically young and turning over due to convection.
A multispectral Visual Imaging Camera image of Pluto in enhanced color to bring out differences in surface composition
Regions where water ice has been detected (blue regions)
Eris (dwarf planet)
Videos
Eris is the most massive and second-largest-known dwarf planet in the Solar System. It is a trans-Neptunian object in the scattered disk and has a high-eccentricity orbit. Eris was discovered in Janua
Pluto
…known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume by a small margin, but is less massive than Eris. Like other Kuiper belt objects, Pluto is made primarily of ice and rock and is much smaller than the inner planets. Pluto has roughly one-sixth the…
Low-resolution image of Eris and Dysnomia as imaged by the James Webb Space Telescope's NIRCam on 23 August 2024
Eris and its moon Dysnomia imaged by Hubble Space Telescope on August 30, 2006. Dysnomia's orbit around Eris labeled.
Illustration of the stellar occultation by Eris in November 2010. The resulting occultation chords project a circular silhouette for Eris, giving a spherical diameter of 2,326 km (1,445 mi).
Eris as taken by the Hubble Space Telescope. This image is one of the clearer shots of Eris.