Ark

Five massive starships known as the Arks are constructed by the Andromeda Initiative to carry races of the Milky Way to the Andromeda galaxy for establishing a colonization and exploration foothold on the seemingly resource-rich galaxy.

The flagship is called the Nexus, a Citadel-inspired space station designed to be the central support hub and temporary home once the colonists reach Andromeda. The four other far smaller Arks each carry a separate species and are intended as additional power and storage sources for the Nexus. Known Arks include the Parcero and the Hyperion, the main Ark tasked with transporting the majority of humans.

Technology
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
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.