Mars
| Mars | |
|---|---|
 Mars as seen by the Hope orbiter, August 2021 | |
| Star, Position | Sol, IV |
| Moon(s) | 2 (Phobos and Deimos) |
| Diameter | 6,779 km |
| Length of day | 24.02 hours |
| Length of year | 687 earth days |
| Surface gravity | 0.376 g |
| Atmosphere composition |
|
| Mean temperature | −63 °C (−82 °F) |
| Adjective | Martian |
| Population | 492,540,000 |
| Government |  North Atlantic Conglomerate
|
Mars is the fourth planet from Sol and the second extraterrestrial body (after Luna) to be colonised by humans, with the first permanent colonists settling in 2029. Since then, Mars has known several geopolitical changes and two civil wars. By the late 23rd century it has become the most influential power in the Sol system after Earth.