The flagship is called the Nexus, a Citadel-inspired space station designed to be the central support hub of the Initiative and a temporary home for the colonists as they await settlement on one of the selected golden worlds. The other Arks are far smaller, with each carrying a separate species. Upon arrival in Andromeda, the Nexus was designed to be expanded to more than double its original size. The other Arks would couple with it to provide additional power and storage.
- Nexus - The flagship Ark and base of operations for the Andromeda Initiative. Carries members of multiple species, including the krogan Clan Nakmor. Arrives in Andromeda 14 months before Ark Hyperion.
- Hyperion - The human Ark. Arrives in Andromeda in 2819 and encounters trouble at Habitat 7.
- Leusinia - The asari Ark. Classified as missing by the Initiative.
- Natanus - The turian Ark. Classified as missing by the Initiative.
- Paarchero - The salarian Ark. Classified as missing by the Initiative.
- Keelah Si'yah- The quarian Ark, also designed to carry drell, hanar, elcor and volus. The varied biological needs of this Ark's population created technical complications, so its launch was delayed until after the first wave's departure. It is not expected to arrive in Andromeda for some time.
Because the journey through dark space will take several human lifetimes to complete even with FTL, the Arks are equipped with cryostasis pods protected by mass effect fields where the colonists will spend most of their time sleeping in until they reach the outskirts of Andromeda.
ODSY Drive System Edit
With the Arks unable to refuel by traditional means in dark space, the journey to Andromeda is only made possible by the ODSY Drive System. The ODSY is a massive experimental drive core specifically designed for this trans-galactic voyage. It is capable of recycling static energy that would typically cause a starship to explode, instead storing it to power the Ark’s primary systems. Meanwhile, an electromagnetic ram-scoop will gather hydrogen from the Ark’s surroundings, converting it into fuel as needed.