- For the primary universe counterpart, see Luna.
In the mirror universe, Luna was the only natural satellite of Earth in the Sol System.
On one occasion prior to 2155, the Terran Empire landed on Luna, planting a flag on its surface to signify this achievement. (ENT episode: "In a Mirror, Darkly")
In 2295, the Moon was conquered by the Klingon-Cardassian Alliance following the fall of the Terran Empire, the successor state of the Terran Republic.
In 2350, a 15-year-old Terran slave named William T. Riker was living on Luna. That year, he killed his father Kyle Riker, who had beaten him constantly for his entire life, before killing his Klingon owner and escaping the Sol System. (TTN - Mirror Universe short story: "Empathy")