Hail Eris!
The dwarf planet formerly known as Xena received a new name today, while Pluto was given a number to reflect the loss of its status as a planet, as explained in this NY Times article.
“It is absolutely the perfect name,” Dr. Brown said, given the continuing discord among astronomers and the public over whether Pluto should have retained its planetary status. In mythology, Eris ignited discord that led to the Trojan War.
“She causes strife by causing arguments among men, by making them think their opinions are right and everyone else’s is wrong,” Dr. Brown said. “It really is just perfect.”