Exoplanet NETA-0878d

Fourth planet from its 2 suns.

Organic life is thought to have existed on this planet but, for unknown reasons, has long been extinct. However life still exists but in metal forms, thought to be created by this planet's intelligent species but evolved to become its own ecosystem.

Most of the wildlife on this planet (dubbed "Mechafauna") are made of a tungsten-steel alloy, with some species using an element unique to this planet called Drasilium.

Drasilium is extremely lightweight while also being more durable than any previously known substance, thought to be formed after a collision of 3 stars when this system was formed, only 2 of the three stars still existing.

NETA-0878d's atmosphere is comprised 20% of methane, forcing colonists to wear protective suits when outdoors