Axiom

The Axiom was a starship created in 2601 PLF by the reformed Human government to evacuate all Humans from the planet Earth following the downfall of the Empire of the Hood. The plan, nicknamed 'The Great Exodus', was to evacuate humankind from Earth since it had been transformed into a barren, part-glassed, junk-infested husk. They commissioned thousands of robots to clean up Earth whilst Humanity was gone, and the entire project was set to last five years. However, due to a mix-up on behalf of the idiot Human governments, the Axiom ended up drifting in space for 700 years. When it finally got back to Earth in 3301 PLF, they had to clean up Earth by themselves anyway.