Alpha Serpentis III was discovered, like many planets, by an unmanned drone sent to the system to confirm if there were any habitable planets, and, if so, there was any sign of intelligent life there. When the drone returned, it revealed that one planet was almost the same size as Earth and required no terraforming. However, perhaps the most important information that the drone brought back was the extremely high amount of asteroids in-system. This meant that there was a vast amount of ore, especially iron and titanium, to be mined.
Alpha Serpentis III was originally a mining colony, with its main population serving on the large asteroid mining ships in system.