Deserted and empty. A solitary lighthouse, constructed from shimmering, self-repairing alloys and pulsing with soft blue energy, stands sentinel on a tempestuous ocean planet. Far future engineering is evident in its sleek, aerodynamic form, designed to withstand extreme conditions. The building casts a comforting, warm glow across the churning, dark waters, a beacon of safety in the immense, lonely expanse. Its operational status is indicated by a steady, reassuring sweep of light.