A world lit by the faint, frigid glow of a dying white dwarf, its surface dominated by vast, cracked plains of sulfurous ash and dormant volcanoes. Moderate gravity presses down on a thin, choking atmosphere of nitrogen, sulfur dioxide, and trace argon, keeping surface temperatures perpetually below freezing. Sparse, super-saline brines, rich in dissolved sulfates, pool in the deeper depressions and fissures, the only liquid medium for life.