the auroran population is approximately 100 trillion, according to atmos - most planets have at least one arcology that can house tens of millions of people, and the "homeworlds" of the six different auroran factions each average a population of around 175 billion. as a result, many auroran worlds suffer from severe pollution and overcrowding problems, and the colonization of new systems to relieve the burden of overpopulation is a major factor in their political agenda.