Eris

"Rapid Corpus expansion has led them to build outposts in this far flung sector of the system."

- In-game description

 is a planet where the Infested are the controlling faction as of Update 14. Prior to the update, the Corpus was the controlling faction. This is one of two planets to not have a Boss mission, the other being Earth which does not have a boss node. Phorid originally was the boss of Eris until it was relocated to inhabit Invasion missions, and only when they reach the planet's boss level. This is also the only planet to feature the Infested Ship Tileset.

Expected Enemies
''Infested can appear during Invasion missions. These lists do not apply to Survival missions.''

Trivia

 * Eris is named after the Greek goddess of discord, owing to the fact that its discovery led to the debate (and ultimately the demotion) of Pluto's status as a planet.
 * Many of the Eris' missions are shortened names of various diseases, parasites and fungi.
 * After The Hunt For Alad V Eris was the only planet left to be completely controlled by the Infested, but they were eventually replaced by the Corpus in Update 11.3.0, but regained control in Update 14.
 * Although Eris is (currently) the farthest known dwarf planet orbiting our Sun, Sedna and Europa are farther out in the Solar System UI.
 * According to the Operation Oxium Espionage event, the formulation for Oxium was developed in a research facility near Eris.

Eris