The following is a list of groups of planets.
“The Core Worlds are a group of planets within the Koprulu sector. The core worlds were...Core Worlds
“The Fringe Worlds comprise a belt of frontier planets at the farthest reaches of the Terran...Fringe Worlds
“The Centauri Colonies are controlled by the United Earth Directorate. Doran Routhe took shelter...Centauri Colonies
“The Outer Colonies were planets controlled by the Terran Confederacy. Despite a similar naming...Outer Colonies
This category has the following 3 subcategories, out of 3 total.