Sorry. You're right about 'extraterrestrial', stations are just referring to space stations; larger hubs that act as port cities for various kinds of ships.
'Pre-fab' is shorthand; pre-fabricated colonies are often made with buildings designed to be built quickly to make sure that the folks who live there, usually scientists and the people employed to protect them, like military or private security.
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'Pre-fab' is shorthand; pre-fabricated colonies are often made with buildings designed to be built quickly to make sure that the folks who live there, usually scientists and the people employed to protect them, like military or private security.