Located in the Delta planetary group, and very similar to Omega, Axiom was one of the later planets to be colonized in the nexus system. It has undergone major changes throughout its lifetime, sporting a variety of different biomes and climates. After Theta extracted Axiom's core and used it to fire her lasership at the Nexus Rift, Axiom began to crumble and break apart, only to be pulled into the Nexus Rift. In the conclusion of the Exodus mission, Axiom was reforged as a tri-planet: a formation of three micro planets that orbit each other and the Nexus Rift.