Dyum

Dyum is a fictional planet located in the Andromeda Galaxy. It is known for its unusual flora, which includes bioluminescent fungi that illuminate the planet's surface at night. The atmosphere of Dyum is rich in nitrogen and methane, making it unbreathable for most known lifeforms.

The indigenous inhabitants of Dyum are the Lumina, a silicon-based species that communicate through a complex system of light pulses. They are a peaceful and reclusive people, having had little contact with off-world civilizations. The Lumina have developed advanced technologies, particularly in the fields of energy manipulation and bio-engineering, though their motivations for these advancements remain largely unknown to outsiders.

The planet's geology is characterized by vast crystalline caverns and geysers that periodically erupt with superheated plasma. These geological features are believed to be a significant source of energy for the Lumina. Early surveys by interstellar explorers have noted the presence of unique mineral deposits on Dyum, but their extraction is complicated by the planet's extreme environmental conditions and the Lumina's protective nature. Further research into Dyum and its inhabitants is ongoing, albeit with significant challenges.