Eris (minor-planet designation: 136199 Eris) is the most massive and second-largest known dwarf planet in the Solar System. It is a trans-Neptunian object...

(formally (136199) Eris I Dysnomia) is the only known moon of the dwarf planet Eris and is the second-largest known moon of a dwarf planet, after Pluto I...

Eris (/ˈɪərɪs, ˈɛrɪs/; Greek: Ἔρις Éris, "Strife") is the Greek goddess of strife and discord. Her Roman equivalent is Discordia, which means the same...

refers to: Eris (mythology) or Discordia, the goddess of discord in Greek mythology Eris (dwarf planet), the second-largest known dwarf planet in the Solar...

agreement that at least the eight largest candidates are dwarf planets – in rough order of size, Pluto, Eris, Haumea, Makemake, Gonggong, Quaoar, Sedna and Ceres...

the results of the New Horizons and Dawn missions. Eris is generally assumed to be a dwarf planet because it is similar in size to Pluto and even more...

Ceres, Pluto, and Eris in the category of dwarf planet, although many planetary scientists have continued to apply the term planet more broadly. Further...

including the dwarf planet Eris, which was originally thought to be bigger than Pluto, triggering a debate on the definition of a planet. He has been referred...

American astronomer, discoverer of minor planets and the co-discoverer of Eris, the most massive dwarf planet known in the Solar System. Trujillo works...

discovery of several possible dwarf planets such as 90377 Sedna (possibly the first known inner Oort cloud object), 90482 Orcus, Eris (more massive than Pluto)...