The Transport Ships are Human created vessels capable of interstellar travel.
They are powered using anti-matter, this was revealed during Episode 1. They also have a compliment of at least six Sub-shuttles. These ships transported Humans to Carpathia which was soon colonised. Starting off with CT-1, which became the center of the colony Forthaven, seven more ships arrived. CT-9 also came but was destroyed, although six Sub-shuttles managed to escape and join Carpathia's population. CT-10 is heading towards the planet, with Julius Berger being the only person who knows. He made contact to the ship, saying that he would remove all opposition, including President Tate and his supporters, before their arrival. (Episode 5)