Fungal Moon
"The caps are like a dermis, that much is clear. Located within are pumps that act like hearts and lungs. Natural aqueducts akin to blood veins. All very intriguing, but there's something else in there. Something higher than an autonomous biological system. Something that thinks."
-Dr. Samuel Hyman
Mycelia, or Kepule III, is the third major moon of Kepule and is the third largest major moon in the Kepule system. Mycelia is one of three bodies to naturally harbor life in the Hyperbrasil system, but it is not home to any known sophonts. It is not believed to be geologically active, nor known to have traditional oceans. Mycelia has no natural satellites and only a handful of artificial ones.
Mycelia gets its name from the fact that its surface is covered almost entirely by enormous mushroom caps. These assumed fungal structures, known as greatshrooms, encapsulate nearly the entire moon and are capable of photosynthesis with extreme efficiency. While the external surface of Mycelia's greatshrooms is a near-vacuum, the interior holds a pressure of about 1.2 bar in areas containing atmosphere. Mycelia's biosphere can be thought of more simply as a single organism with several interconnected systems, almost like organs.
Mycelia has a surface gravity of 2.6 m/s² and is tidally locked to Kepule. The moon is in an elliptical retrograde orbit, leading many to believe that it was captured by Kepule from outside the Hyperbrasil system. Being on a retrograde orbit, Mycelia gets very few visitors, apart from the occasional party of scientists. There is one permanent base on the surface of the Kepule-facing greatshroom.