The planet is about the same size and habitable zone as Earth. Its star Celi-kolo is of a similar size and age as Earth's sun. In early times, the planet had other planets in its solar system, but all have been mined for their raw metals and gases.
Leithalisu, despite being in the habitable zone, was not considered a habitable planet for one simple reason. The planet had no atmosphere, thus no ozone. The rays of light were harsher on the planet, turning the world into a bare desert.
That wasn’t to say there wasn’t life. Below the planet's surface lies a complex cave network. Within these networks are pockets of oxygen and hydrogen that help form water. Then, with the surrounding minerals, it creates the primordial soup of life that has resulted in strange microscopic life. While they resemble bacteria and protists in function, their shapes are more angular and fractal compared to their earthly counterparts.
There have been a few cases of multicellular species emerging. This is due to the planet's core being fully formed and its plates set in place. Earthquakes and cave-ins are near impossible, giving them time to evolve to such a stage. Each pocket is isolated from the others, and as such, their DNA sequences are unlike Earth life. There are cases of chiral life forming, life that uses left spirals instead of our right. These microscopic life forms are like living radiation. One is capable of moving through another organism that has an opposite chirality and damaging not only its organs but also its DNA sequence.
This did cause a large plague in 2820 that killed 90% of the population on the first day.
A small bit of world building for the planet Leithalisu in #Vul
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