Luna

Luna is a natural satellite moon of Earth, located in the Sol system. Luna lacks a atmosphere or magnetic field, making it inhospitable to any known sentient species. Luna's appearance in Earth's skies had caused it to be a major cultural and religious symbol in Human cultures. As of the mid-21st century, Luna is designated as a colony of Earth.

Luna is one of the most important industrial stations of the Sol system, due to its proximity to Earth and it's low gravity. Luna holds several of the largest metal foundries and shipyards in the Sol system, as well as some of the most extensive ground-to-orbit gauss-tracks to deliver cargo to lunar orbit.

Luna is also an important strategic holding for Earth, and boasts an impressive defensive network, consisting mostly of sensitive asteroid-spotters; missile launch systems on both ground installations and orbital satellites; and equatorial and polar heavy railgun emplacements.