A collection of space habitats, space stations, space colonies, and anything else artificial that serves as a home to humans in SPAAAAAAAAAAAAAACE!
Here am I, floating in a tin can, far above the moon, Planet Earth is blue, and there’s nothing I can doo.
A salvage and scrap yard of the UFP
Mining in a certain area turns all exposed skin (maybe just parts that are actively disturbing the chemicals that cause the reaction) of the those doing the mining to a dark blue color. Will wear off taking as many years/days spent in the mine. ... meeting a party of blue-skinned humans armed with pick-axes etc. Strange disease? Demon offspring? Curse? If they meet only one ex-worker, they will very carefully listen to any stories he says, no matter if drunken or insane, or just makes up to get a beer.