Recognized officially by the United Nations as Luna, Earth's moon was colonized many, many years ago with the establishment of the city of Heinlein. It was created to act as a hub for Helium-3 mining.
The Beanstalk is the primary connection between the moon and the Earth, with cargo and passenger shuttles traveling between the Challenger Planetoid and Starport Kaguya.
Mysterious Echoes[]
On the moon, ghostly echoes of signals transmitted long ago acquire a sort of permanence and interfere with modern data. Some say they are remnants of the legendary source code.