Luna

Luna
Star System: Sol

Parent Planet: Earth

Capital: Harmony City

Terrestrial Population (est.): 66,674,843

Spacer Population (est.): 162,981

Noteworthy places: Lunar University of Medical Science, Interstellar Aid Corps Headquarters

General Information
Luna is the only natural satellite of Earth. It is tidally locked to its parent and makes a complete revolution every 28 standard days. It formed when a rogue planetoid collided with Earth during the early stages of its formation. The moon came together from the resultant orbital debris. Luna was the first target of spacefaring humans as they pierced the outer layers of the atmosphere. It was largely ignored until the age of FTL travel and colonization, when small colonies were established, mostly as refueling and launching posts for re-entry craft.

Luna is something of a mishmash of human society. Early in the history of mankind's colonization of outer space, Luna was developed into an off-world shipyard where vessels would be constructed and launched, drastically cutting the cost due to the lower gravity. In modern times it has developed into a busy trade hub, where traders from across the galaxy come to offload goods before they make their final trip to Earth. It is also the home of Einstein Engines, who control nearly all the shipyards and construction sites on and orbiting Luna, with Nanotrasen having an unusually smaller stake.

Subterranean Cities
Initial exploration and colonization came with the discovery of vast subterranean lava tubes, two of which were as wide as 5km. Colonists and construction teams immediately set work in sealing and reinforcing these massive caverns, constructing subterranean towns which over the course of Luna's history developed into sprawling cities. There is a very large mining industry on Luna, with engineers and shaft miners being well paid and lucrative careers, because there are constant projects to expand and connect the subterranean cities with large and intricate mag-train subways. The trains travel at 507 km/h, allowing people to travel between even the farthest cities in mere minutes where regular travel on the surface would take many hours or even a full earth day.

Being far underground and connected to the surface via subway tunnels, escalators, and standard hallways, the Luna population is very well protected from asteroid strikes or other cosmic dangers. During solar storms or other such emergencies, emergency procedures are in place to evacuate the population underground. One famous example of this safety is during the New Phoenix disaster, where an asteroid was detected to impact in the city of New Phoenix only 7 minutes before impact. Most of the 12,000 residents were saved during the emergency evacuation, but the entire above-ground biodome was destroyed and the survivors left homeless. After this incident, all vital infrastructure (including gravity generators, atmospheric equipment, and government facilities) were moved underground.

Within the subterranean structures of lunar cities, much effort is made to maintain an illusion of space. While the majority of the lava tubes are are several kilometers in diameter, in the early days of lunar colonization, many colonists reported suffering from depression and panic attacks, as well as developing symptoms of claustrophobia. To combat this, open areas have been given powerful light sources designed to simulate natural sunlight, and residents of subterranean areas are prescribed vitamin D supplements.

Luna's Governor Kristen Anuja enjoys a moderate approval rating. She is supportive of Einstein Engines, and critical of Nanotrasen's growing involvement on Luna.