Diarmata

Diarmata is a fictional planet located in the Kepler-186 system, known for its varied and often challenging terrain. Its surface is characterized by vast, rocky deserts interspersed with dense, bioluminescent forests that thrive in the planet's dim, red sunlight. The atmosphere is thin and rich in nitrogen, with trace amounts of oxygen, making it breathable for some species but requiring specialized equipment for most visitors.

The planet experiences extreme temperature fluctuations, with scorching days and frigid nights due to its slow rotation and elliptical orbit. Diarmata is home to a unique ecosystem, including silicon-based life forms adapted to the harsh conditions. The most prominent of these are the crystalline flora, which absorb minerals directly from the soil, and the nomadic fauna that traverse the deserts in search of scarce water sources.

Little is known about any sentient life that may have inhabited Diarmata in the past or present, though ancient ruins suggest a more developed civilization may have once existed. Exploration of Diarmata is primarily conducted by scientific expeditions seeking to understand its unusual geological and biological processes, as well as its potential for harboring life. The planet's remoteness and hostile environment present significant challenges to any sustained presence.