Kepler-90i

Kepler-90i is a super-Earth exoplanet which is located an unknown distance away from Earth. It was once the homeworld of the Kathfar, a Kardashev Type III civilization which was singlehandedly exterminated from the inside by Emanuel Fialik. Kepler-90i was Falco Richter's homeworld.

Connection to Emanuel Fialik
Many millions of years ago, Kepler-90i was bombarded with deep-space comets. Locked inside the ice of one of these comets was Fialik's frozen body - Fialik had climbed in to the forming ice of a comet a few million years before it crashed on Kepler-90i's surface in order to hitch a ride to a random civilization.

After crashing on Kepler-90i, Kathfar residents of a nearby research station (Outpost 32) retrieved the chunk of the comet which contained Fialik's body. That night, while the researchers were sleeping, Fialik exploded from the containment of the comet and began to assimilate the Kathfar researchers, one by one. It later went on to drive the entire Kathfar species to extinction after reaching their nearest civilization. It is presumed that it did this through the use of his most common tactic; musical hypnosis.