Editing Solar System (section)

== [[Neptune]] ==
Neptune's moons were settled during the Age of Terra some point between M15-M18, though the population devolved into hideous mutants.

The [[Blood Angels|IXth Legion]] were given the task of bringing them to compliance, and fought a bloody war through the tunnels of its moons that cost them 12,000 men, though due to the beneficial quirks of their gene-seed they were able to replenish those numbers directly from the conquered mutant population. It is curious to note that the mutants were conquered instead of exterminated, same with those of Baal come to think of it. Perhaps they, and those of Baal, were less "mutants" in the traditional sense and more like each person was a unique abhuman. In other words, had stable genetics and would technically breed true if not for each individual being genetically a unique abhuman in this case. Either that, or the Imperium has a different definition of "mutant" than modern humans do.

The moons of Neptune were frequently infiltrated by chaos or genestealer cults at later periods.