Theralme

Theralme is an exoplanet approximately 2.55 million light years away in the. It is the first planet from its star, Porios, and the smallest in the Porios system. It is a rocky planet with a mass 3/4ths that of Earth, characterized most by its thick atmosphere.

Etymology
The name comes from Ancient Lithon "Nizeräluveeh", literally "the Pure Hot one", as it is very hot on the surface and is known for its brightness in the sky

Characteristics
Air pressure on Theralme is 173 atmospheres at the surface, almost twice that of Venus. It consists mostly of sulfuric acid and other sulfur compounds, emitted by the many volcanoes on its surface.

Lithon presence
The Lithon species tried many times to colonize the surface of Theralme in order to mine its sulfur-rich surface, and eventually succeeded. Surface colonies tend to be mines and are inhabited mostly by manual labor castes. Science colonies are usually in the mid to upper atmosphere.