Utav

Utav is a fictional planet located in the Andromeda galaxy. It is known for its unusual atmospheric composition, which gives its sky a perpetual twilight hue of violet and deep orange. The planet's surface is characterized by vast, crystalline deserts and towering, bioluminescent flora that thrive in the low-light conditions.

The dominant life forms on Utav are the Xylos, a sentient species with silicon-based biology. They possess a unique ability to absorb and metabolize ambient energy from their environment, allowing them to survive without consuming organic matter. Xylos society is structured around communal energy-sharing and a deep reverence for the planet's natural geological formations. Their cities are often carved directly into massive crystal structures, blending seamlessly with the landscape.

Utav's geological activity is primarily driven by subsurface geothermal vents, which create pockets of liquid water and support a diverse range of extremophile organisms. The planet experiences mild seismic activity, but these tremors are crucial for the Xylos' energy distribution network. Despite its seemingly harsh environment, Utav is a world of subtle beauty and intricate ecological balance, largely untouched by interstellar exploration until recent decades.