Sol

Sol is the solar system that is home to Humanity.

Earth


Population: 10.5 Billion

Primary Uses: Homeworld, Transport hub. (Neutral)

Homeworld of Humanity. Presently ruled by the many of the same factions, corporations, and coalitions of nations formed in the 20th and 21st centuries, Earth is the primary hub of Human civilization in the Milky way.

Mercury
Population: 1.1 Billion

Primary Uses: Mining, Heavy Industry.

Humanity's third colony. Whilst much of the planet's resources have been stripped away, many mining companies and corporations are still operating on the planet, with plans to terraform the surface once the mines eventually run dry.

Venus
Population: 6.5 Billion

Primary Uses: Habitation, Farming, Light Industry.

Humanity's second colony. Terraforming of Venus was completed just over 100 years ago, and the surface is covered with successful and booming colonies.

Mars
Population: 8.1 Billion

Primary Function: Habitation, Farming, Mining, Heavy Industry.

The oldest of the Human colonies, Mars was the first planet within the solar system to be settled and terraformed. Home to most of Humanity's shipyards and major heavy industries.

Jupiter
Population: 4.5 Million (On moons & orbiting stations.)

Primary Function: Gas mining.

Due to deep gravity wells and harsh radiation, colonization attempts on Jupiter's moons have yielded little more than a few small, well-shielded settlements constructed by mining companies as bases from which to conduct Helium-3 mining within Jupiter's atmosphere.

Saturn
Population: 2.2 Billion (On moons & orbiting stations.)

Primary Function: Gas mining, Shipbuilding, Transport hub.

Another major source of Helium-3, Saturn's moons have been heavily colonized, and several large stations in Saturn's orbit are home to a small but thriving shipbuilding industry.

Uranus
Population: 5.2 Million (On moons & orbiting stations.)

Primary Function: Gas mining.

Humanity's primary source of Helium-3. Uranus' moons are home to many sizable colonies, and several floating cities and orbital stations surround the planet.

Neptune
Population: 0.2 Million (On moons & orbiting stations.)

Primary Function: Archaelogical site, Gas mining.

Too distant to make Helium-3 mining overly profitable, Neptune has avoided any significant development around the planet itself, save for a few small orbital stations.

Neptune's moon Triton has been off-limits to developers and miners following the discovery of a crashed alien spacecraft of unknown origin in the 2250s.

Although partially buried and heavily damaged, Human scientists were able to learn enough from the wreckage and from other artifacts discovered on Triton to reverse-engineer significant amounts of the ship's propulsion technology, and begun to produce functional copies within only a few decades of the discovery.

Much of today's spaceflight technology is derived from discoveries made based upon the wreckage on Triton, and scientists estimate that without the knowledge gained from studying the wreck, Humans still would not be able to travel beyond their own solar system.