After completing the major Destiny 2 The Final Shape campaign, Micah-10 will contact you to help track down lost Ghosts. There are several Ghosts scattered throughout The Pale Heart and the Sol System that you must find.
Destiny 2: All Lost Ghost Locations in Final Form – Prepare for Final Triumph
These Lost Spirits will appear in various missions for you to complete, many of which will take you across Strikes, campaign missions, or while exploring the Lost Sectors in The Pale Heart. It can be hard to keep track of where you need to go for every Lost Spirit, but we’ve made it easier for you to find them all in Destiny 2, no matter what mission you’re working on for Micah-10.
When searching for Ghosts during a mission with Micah-10, always be on the lookout for the distinctive orange aura they give off. This is the best way to track down these Ghosts. When you approach them, interact with the lost Ghost for a few seconds and then proceed to the required quest objective.
These are all of the Lost Ghost locations you need to find for Micah-10 in Destiny 2. These are spread throughout the various quests and tasks you'll need to complete as you explore The Pale Heart.