Holy

Holy is the most inhospitable of the planets in the solar system. Little more than a massive asteroid in stable orbit, Holy has no vegetation on the surface nor atmosphere to support life. the primary inhabitants of Holy are the Primal Blanks: a species of incredibly violent and dangerous Ukalisters that indiscriminately attack anyone that steps foot on their planet. The Blanks most people know today that live on Zerth are originally from Holy, but somehow have evolved to be Stralobytes instead of Ukalisters, and migrated from Holy to Zerth to live as such. All blanks, both Stralobyte and Ukalister have an extreme sensitivity to UV light. Holy itself is basically a giant asteroid, with hundreds of tunnels coursing through it like Swiss cheese. The Primal Blanks spend almost their entire lives within these tunnels, to protect themselves from the sun when their side of Holy is facing the sun and light shines across its surface.

Travel to Holy is incredibly dangerous, and is warned against by almost any government and organization.