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  1. Eris (dwarf planet) - Wikipedia

    Eris is the ninth-most massive known object orbiting the Sun and the sixteenth-most massive in the Solar System (counting moons). It is also the largest known object in the Solar System that …

  2. Eris - Science@NASA

    Apr 24, 2025 · Eris is one of largest the dwarf planets in our solar system. It's about the same size as Pluto, but it's three times farther from the Sun. Eyes of the Solar System uses data and …

  3. 20 years ago, the discovery of Eris spelled doom for planet Pluto

    Jan 31, 2025 · Eris, a dwarf planet located approximately 95.6 AU from the Sun, was discovered in 2005 after a re-analysis of data initially collected in 2003. Its discovery contributed to the …

  4. Eris | Dwarf Planet, Kuiper Belt, Plutoid | Britannica

    Nov 4, 2025 · Eris, large, distant body of the solar system, revolving around the Sun well beyond the orbits of Neptune and Pluto in the Kuiper belt. It was discovered in 2005 in images taken …

  5. Eris Dwarf Planet: Discovery, Classification, Mass And Other Facts

    Jun 2, 2024 · Eris is a dwarf planet situated beyond Neptune in the edges of the Kuiper Belt. It is an icy rocky planet, bigger than Pluto and twice as far from the Sun.

  6. Eris – dwarf planet in Kuiper Belt, Past Pluto, geography, exploration

    Eris is the brightest planet, 2nd most reflective body, in our solar system. The only "body" in our solar system that is brighter is Saturn's satellite Enceladus. It appears a bright white due to the …

  7. Eris: 10 Fascinating Facts About the Dwarf Planet That ... - Curiosmos

    Jan 8, 2021 · Here are facts about Eris, the icy dwarf planet that redefined our solar system. Discover the mysteries of its reflective surface.

  8. Eris (Dwarf Planet) Facts

    Eris is the most massive dwarf planet in the Solar System, exceeding Pluto’s mass by 28%. As such, it was a serious contender to be a tenth planet but failed to meet the criteria set out by …

  9. Eris, a Dwarf Planet - Windows to the Universe

    Eris is a large sphere of ice and rock similar to Pluto. It orbits the Sun on the edge of the Solar System. The diameter of Eris is about 2,500 km (1,553 miles). We aren't sure of its exact size …

  10. Eris (dwarf planet) - Simple English Wikipedia, the free …

    Eris is slightly smaller than Pluto, but it has more mass than Pluto, making it the most massive dwarf planet. It is a " scattered disc object" in the Kuiper belt, further out than Pluto.