Name: Zarconia

Features: Zarconia’s rotation around its axis is at the same rate as it revolves around the sun, so half of the planet is in perpetual darkness.

There are creatures in both halves of Zarconia, though creatures of the light side can’t stand darkness and vice versa.

Zarconia shows signs of an alien race that had long since died, and apparently had lived in halves of the planet.

Song: The Search by Andrew Prahlow, Outer Wilds OST