The Enlightened is a small religious group you can join by picking the ‘Raised Enlightened’ trait during character creation.
While you can technically ‘join’ this faction, it is unclear if the Enlightened is a technically complete faction, or simply a group of religious NPCs.
The Enlightened faction provides a number of unique Starfield faction quests with unique rewards and objectives.
Here are all the known Enlightened faction missions:
The Enlightened faction has a presence in the following systems: