The discovery of Pluto's moon Styx was announced on July 11, 2012.
== Infernal river ==The deities of the Greek pantheon swore all their oaths upon the river Styx because, according to Greek mythology, during the Titanomachy, Styx, the goddess of the river, sided with Zeus
=== Mythology ===In these myths, Styx supported Zeus in the Titanomachy, where she was said to be the first to rush to his aid

