The Argo was a supercarrier.
At Doran Routhe's private laboratories on Earth, the Argo was loaded with thousands of United Powers League prisoners and enough supplies, rations and hardware to aid them once they arrived at their destination.
The Argo was programmed to follow the Nagglfar as it was launched toward Gantris VI. At some point during the voyage the Argo veered off course along with the other supercarriers and barrel blindly through warp space for twenty-eight years until its warp-drive engines reached critical meltdown.
The Argo emerged into real space in the Koprulu sector. With its engines destroyed and its life-support batteries nearly exhausted, the Argo engaged its emergency protocols and landed on Moria. The 'cold sleep' chambers were then deactivated and the passengers slowly awakened. In an attempt to find refuge in their new surroundings, they stripped the Argo of essential materials.
Argo is the ship in Greek mythology that bore Jason on his quest to retrieve the Golden Fleece.