Mars

Mars is the fourth planet located in the Sol system, named after the Roman god of war Mars was the site of the largest and most prominent Earth colony.

Moons
Mars has two moons:


 * Phobos: Phobos is home to a high security prison. It was here, where the leaders of the Guardians were sent to after their capture.


 * Deimos: Deimos is home to a small civilian settlement.

Locations
Most of the settlements on Mars are located under large domes linked by transport tubes. The tubes are heavily reinforced (reportedly indestructible), capable of easily withstanding blasts from grenades and explosives. While humans are capable of enduring the temperature and pressure on the surface, they require a breathing apparatus since the atmosphere does not have sufficient nitrogen-oxygen levels.

Chryse Planitia
Downland plain on Mars, near Tharsis. Location of the Viking 1 Landing Site Park, a popular tourist destination.

Lunis Planum
Upland plain on Mars. Location of the Lunis Planum Prison Base. Where Morgan Clark was sent after he was arrested.

Olympus Mons
A large edifice on Mars, known for being the highest volcano and mountain in the Sol System, situated north west of Syria Planum. Location of an ISN station, from which the Mars Rebellion of 2155 was reported.

Solis Planum
Upland plain on Mars, situated south east of Syria Planum. Location of the first permanent human Colony, Mars One. In the mid-23rd Century, it is the location of a secret Guardians training facility and the Earthforce Security staging area at Fort Walters. During the Mars Rebellion of 2155, Troops from Syria Planum were sent to reinforce patrols in Solis Planum and outlying regions.

Syria Planum
Upland plain on Mars, situated south east of Olympus Mons. In 2553, a series of Tkon ruins were found beneath the surface.

Utopia Planitia
A vast lava plain on mars and the site of the city of Utopia Planitia and a series of shipyards known as the Utopia Planitia Fleet Yards.