Sol System

Sol
Age	4.568 billion years
Terran Alliance Grid Square	0,0,0
Nearest Star	Proxima Centauri
Planetary System
Orbit of Outermost Planet	700 AU (104.7 billion km) (Viidus)
Planets	9
Known Dwarf Planets	7 (Ceres, Pluto, Eris, Haumea, Makemake, TBD, TBD)
Politics
Owner	Terran Alliance (however the planet Jupiter and its moons are considered territory of the Teuthidoid Peoples)

Other Names: Solar System (Humans), <thought-concept relating to the area around home> (Teuthidoids), HakO (Proximans)

Native Sentient Species: Humans (H. Sapiens sapiens, H. Sapiens magii, H. Sapiens mentis), Teuthidoids (Xenoanimalis Solis Carbonicus Teuthidus majoris)

The Sol system is the seat of the Terran Alliance and the home of both Humans and Teuthidoids (who share a common biological ancestor). The Sol system is relatively mundane, it contains no spatial anomalies, exotic planets, binary stars, brown dwarves, and minimal exotic resources. Consequently, this left the two native species free to develop and advance in a relative state of isolation. No major power attempted to influence them, but there is extensive evidence for visitation and some minor influence by non-native species throughout the system.

Mercury

Power Groups

• Solar Dynamics – Founded in the early 2000s, Solar Dynamics is a company specializing in solar power R&D, manufacturing, and deployment. Officially headquartered on Earth, their primary venture locations are on Mercury, in underground facilities and surface testing stations. Due to the small size of the staff at their Mercury facilities (several hundred researchers, engineers, and support staff), and the non-permanent basis of staff there (staff is rotated out on 6-month shifts), Mercury is not counted as a colony. The Solar Dynamics facilities are not fully self-sufficient, but they do get fresh vegetables from on-site greenhouses which also serve as oxygen sources. Solar Dynamics is an extraterritorial corporate installation, and as such does not receive representation on the People’s or States Chambers.

Major Hazards

• Intense Solar Radiation – As the closest planet to Sol, Mercury is constantly bombarded with high amounts of solar radiation. The planet is exposed to high amounts of varying frequencies of radiation, making it a dangerous place to be without proper shielding.
• No Atmosphere – Mercury is a barren, airless rock of a planet. Atmosphere suits are required for any species incapable of withstanding a vacuum.

Venus

Notable Locations

• Venusian Experimental Atmospheric Space-capable seTtlement (V-EAST) – V-EAST is a continuing experiment in the habitation of planets traditionally regarded as uninhabitable. Constructed in Earth orbit in 2021, V-EAST is a disk-shaped, aerodynamic structure, roughly half a mile in diameter. An early triumph in inertial-manipulation technology, V-EAST has an extremely low inertia for it’s size, allowing it to be suspended inside the eye of Venus’s northern polar hurricane. It’s position is maintained through the use of lighter-than-air gasses and large propellers on the underside of the structure. After it’s construction, it was crewed by an international team of planetary scientists, mechanics, engineers, and their families, and sent in a low-energy transfer orbit to Venus, which took approximately a year of travel. It is currently a hotbed for research in the fields of hostile environment survival and terraforming, including the planning of a future terraforming of the planet Venus. V-EAST is not self-sufficient and relies on regular resupply runs. As such, it is governed by a governor appointed by the Colonial Council.
• Venusian Weather-resistant Exploratory Space-capable seTtlement (V-WEST) – V-WEST is the second atmospheric colony on Venus, usually located in the eye of the southern polar hurricane. An adaptation of the V-EAST design, V-WEST has been further reinforced and given the ability to move outside of polar hurricanes for research on Venus’s atmosphere. It was launched in 2025 and reached Venus in early 2026. V-WEST is not self-sufficient and relies on regular resupply runs. As such, it is governed by a governor appointed by the Colonial Council.

Major Hazards

• High Atmospheric Pressure – Don’t go down into the lower layers of Venus’s atmosphere.
• High Temperatures – Seriously, don’t.
• Sulfuric Acid Precipitation – Just what part of “DON’T” do you fail to understand?

Earth

See the dedicated page for this planet.

Luna

Population: 5,000,000

While technically Luna began as the natural satellite of the Earth, and still is, it is best categorized as a separate entity from Earth. After the first manned landings by the Americans and Soviets in the 1960s, Luna was seen as the logical first step to the rest of the Sol system. Both nations established a permanent manned presence on Luna in the late 1960s, but these bases were still mostly dependent on regular supply runs from Earth to keep them operational. It was not until the mid-1990s that the bases would become truly self-sufficient and colonies in their own right, thanks to advanced hydroponic and protein synthesis technologies developed in anticipation of a manned mission to Jupiter (the Zeus I mission). Each of the major spacefaring powers had their colonies on Luna before the Third World War, with the United States’s colony located in the Sea of Tranquility, the Russian colony located inside Tycho Crater, and the Chinese colony at Tsiolkovskiy Crater on the far side of Luna. Throughout the first decade of the 21st century, several other locations were settled by other nations, but the original three colonies remained the largest. After the outbreak of World War III, the lunar colonies belonging to the United States banded together to form the Independent Lunar Colonial Organization (ILCO), and affirmed their neutral stance on the war in order to protect themselves from possible attacks by the other nations in the war (in particular, Russia, who had stationed military personnel at a facility close to the Sea of Tranquility). During the conflict, ILCO allied itself with the United Martian Colonies and the United Nations in a mutual defense pact. The first major act of ILCO was to write the Lunar Neutrality Treaty, which was a rehashing of the old Outer Space Treaty of the 1960s. The new treaty, which was signed by the other powers with facilities on the moon – China and Russia, allowed for the continued presence of military force on the moon (which had been allowed since a 1988 amendment to the Outer Space Treaty), but prohibits the use of that force against another Lunar facility. Combat on the Lunar surface was too risky for all parties involved, so it was better to not do it at all. The Treaty also stipulated that any military force stationed on the moon must come to the aid of any settlement or vehicle in distress, regardless of that settlement’s or vehicle’s nationality. ILCO’s secession was met with apathy by the Abraham administration – President Abraham had never liked that the United States had facilities on the moon, he felt that it was a waste of money to constantly be sending supplies up there. After the war, the other Lunar colonies made a bid for independence from their home nations, and were able to secede without major incident and join ILCO. These days, the colonies on Luna are linked using high-speed surface rail connections, as well as orbital transports.

Power Groups

• Independent Lunar Colonial Organization – The official government of all of the moon except for the Alliance portions of Tycho Base, ILCO is one of the founding members of the Alliance.
• Pizzuto Industries – Pizzuto Industries maintains several starship construction stations in orbit and on the surface of Luna.
• Terran Alliance Leadership – Headquartered outside of the Tycho Colony, the Alliance’s headquarters are considered sovereign territory of the Alliance and not ILCO.

Notable Locations

• Fra Muro Highlands Base – The headquarters for the Terran Marines, the functional office of the Brigadier of the Marine Corps is located here (but the official office is located at the Terran Alliance Headquarters in Tycho). Also located here is the headquarters of Assault Command and Marine Command, as well as some training facilities – but the vast majority of training takes place on Titan.
• Gagarin Station – Gagarin Station is the location of Navy Fleet Operations and is controlled entirely by the Navy. Gagarin Station was originally built as a transfer station to move supplies from Luna to Mars, and was been upgraded numerous times throughout its lifetime.
• Taurus-Littrow Colony – The newest of the Lunar colonies, work began on Taurus-Littrow in 2025.
• Tranquility City – An underground city, built in lava tubes and excavated tunnels throughout the Sea of Tranquility. The Apollo 11 landing site is a park a short trip away from the city.
• Tsiolkovskiy Colony – Located in a crater on the far side of the Moon, the Tsiolkovskiy Colony does not have the industrial development that Tranquility City and Tycho Colony have – but it does have an extensive research and development community, along with the most advanced and most sensitive radio telescopes in the Earth/Luna system. Navy Spacewatch (SpaceCom) is headquartered here.
• Tycho Colony – The headquarters of the Alliance leadership, Tycho Base functions as the capital for the Terran Alliance.

Major Hazards

• No Atmosphere – For all intents and purposes, Luna has no atmosphere. There is a tenuous atmosphere of gasses, but the density is so low that it is of no real consequence