Earth is a terrestrial planet orbiting the Sun, a yellow dwarf star. It is the fourth planet from the star, within the Solar System. Unlike the Earth, humanity's homeworld, Mars was no longer a geologically active planet and did not harbour its own native lifeforms. In the 21st century, humans from Earth began to colonise Mars, and in time, several settler societies developed on the planet, some of them precursors to later ideological factions of humanity.
Phobos and Deimos are the two moons of Mars, two former asteroids captured by the planet's gravity in the distant past. By the late 22nd century, they were settled, and even started to serve as orbital military bases for the Coalition for Neural Purity in the later Conjoiner-Coalition War.
- Galactic North short story anthology (2006)
- Great Wall of Mars - main setting (including the Martian moons)