Elluviidas

Elluviidas is a fictional planet within the science fiction universe of Xylos. Its defining characteristic is its unique atmospheric composition, which contains a high concentration of bioluminescent algae. During the planet's twilight hours, these algae emit a soft, ethereal glow, transforming the landscape into a vibrant, pulsating spectacle. This phenomenon is a primary tourist attraction for off-world visitors.

The surface of Elluviidas is largely characterized by dense, phosphorescent jungles and expansive, shallow seas. The planet experiences a stable climate with moderate temperatures and frequent, gentle rainfall, which sustains its lush flora. Indigenous lifeforms have evolved to utilize or coexist with the bioluminescent algae, with many species exhibiting their own luminescent properties.

The dominant sentient species of Elluviidas are the Lumina. They are a peaceful, technologically advanced civilization deeply attuned to their planet's natural rhythms. The Lumina have developed a symbiotic relationship with the bioluminescent algae, using its energy for their settlements and integrating its properties into their art and culture. Their cities are often built in harmony with the natural phosphorescence, appearing as extensions of the glowing landscape. Trade with other galactic civilizations is primarily focused on rare minerals found in Elluviidas's crust and the unique bioluminescent compounds harvested sustainably from the planet's ecosystems.