Ares

Terrain
Ares is barren, with weak and unsustainable plant life. There was an attempt at a moon-like colony, but the terraforming engines and gravity furnaces are still malfunctioning by 1981.

Notably, there is an 'oxygen ocean' used for refueling.

Background
During the events of Heaven Will Be Mine, Cradle's Graces and Memorial Foundation are still locked in conflict on Ares.

There is a colony on Ares referred to as the Lagrange Colony (not to be confused with Lagrange Point 5).