Eris

According to Homer, the Trojan war is, above all, an affair of the gods. It is about Eris, a sister of the god of war Ares, and about Eros, not directly named by Homer, but who in the figure of Aphrodite, the god of love, plays a central role on the side of the Trojans. Eris is the one who divides gods, mortals, and things from each other; Eros is the one who brings them together.

Today, Xena is no longer Xena but has been officially renamed Eris, after the Greek goddess of strife and discord—which hints at the climate in planetary science at the time. Its moon has a similarly appropriate name, Dysnomia (lawlessness) in Greek mythology, the daughter of Eris. Observations of Eris and Dysnomia have confirmed that Eris is 27 per cent more massive than Pluto, though of a similar diameter.