APOD3.5

This picture of Saturn's moon Hyperion was taken by the Cassini spacecraft and shows in false color the spongey details of the cratered moon. At the bottom of the craters lies an unknown dark material. Hyperion is 250 meters across, rotates chaotically, and has so little density that it is suspected to have an elaborate cavern system interior.

By my expert opinion, the unknown dark material is Evil Materia.