Editing Space settlement (section)

==Space station projects==
Space settlements are in principle space stations, developments in space station construction therefore share many elements. 
The following projects and proposals, while not truly space settlements, incorporate aspects of what they would have and may represent stepping stones towards eventually building of space settlements.
[[File:Gateway and Orion in lunar orbit (5).jpg|thumb|left|Concept art of the [[Lunar Gateway]]]]
The [[Lunar Gateway]] is a planned lunar space station, the first outside of [[Low Earth Orbit]], therefore being the first spacecraft designed in unshielded space.

The [[International Space Station|ISS]] [[Nautilus-X#ISS centrifuge demonstration|Centrifuge Demo]] was proposed in 2011 as a demonstration project for an [[artificial gravity]] compartment, preparatory for a similar module of a [[Nautilus-X]] Multi-Mission Space Exploration Vehicle (MMSEV). The ISS module would have an outside diameter of {{convert|30|ft}} with a {{convert|30|in}} ring interior cross-section diameter and would provide 0.08 to {{nowrap|0.51g}} partial gravity. This test and evaluation centrifuge would have the capability to become a Sleep Module for ISS crew. The subsequent vehicle design would be a long-duration crewed space transport vehicle including the artificial gravity compartment intended to promote crew-health for a crew of up to six persons on missions of up to two years duration. The [[gravity|partial-g]] [[torus|torus-ring]] [[centrifuge]] would utilize both standard metal-frame and [[Inflatable space habitat|inflatable]] spacecraft structures and would provide 0.11 to {{nowrap|0.69[[Standard gravity|g]]}} if built with the {{convert|40|ft}} diameter option.

The [[Bigelow Commercial Space Station]] was announced in mid-2010. Bigelow has publicly shown space station design configurations with up to nine modules containing {{convert|100000|cuft|abbr=on}} of habitable space. Bigelow began to publicly refer to the initial configuration as "Space Complex Alpha" in October 2010.