Dysnomia Directory References Discover What Is the Emoluments Clause? Timeline of the 2000s 7 Deadliest Weapons in History 7 Drugs that Changed the World Falling Stars: 10 of the Most Famous Endangered Species 7 Everyday English Idioms and Where They Come From Water Fluoridation: Just the Facts Contents Dysnomia astronomy Ask Our Chatbot a Question Ask Our Chatbot a Question Learn about this topic in these articles:Eris In Eris…has at least one moon, Dysnomia, about one-eighth its size, with an orbital period about two weeks long.Read More