Metztli was one of the first systems to be colonized near Colonia, and it houses the first Earth-like world to be colonized far from the old worlds. Although the system's discoverer wished to name it Nereus, Universal Cartographics named it Metztli instead.

Within the Metztli system is the Earth-like planet called Tranquility. It was first discovered in July 3302, shortly after the lost Jaques Station was found near the nebula, and in October 3302, it became the first Earth-like world in the galactic core to be settled.

Initial orbital surveys revealed a rather calm weather system (hence the name for the planet), and a very hot and humid atmosphere. Much of Tranquility's surface is covered in water, and the first surveyors who landed on the planet found an abundance of marine wildlife. The Colonia Research Division soon found that several species of fish are excellent for human consumption, and has since started to farm them. The colonists have since built an orbital outpost called Vitto Orbital, and from there they export fresh fish and algae to feed the growing nearby colonies.

Image credit: Matt G