Extraterrestrial settlement
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Extraterrestrial settlement can be any type of permanent habitation outside of Earth, beyond its space boundary, such as:
- Space settlement Orbital space station Cycler Interstellar ark Generation ship
- Extraterrestrial surface settlement (incl. extraterrestrial underground settlement) Moonbase Mars base
- Extraterrestrial floating settlement High Altitude Venus Operational Concept (HAVOC)
- Extraterrestrial submerged settlement