News, discussion, links to latest information on SSP.
Rapid development of space using material from asteroids near Earth and from the Moon.
Articles, discussion sites, meetings, and government advocacy dedicated to opening the space frontier as rapidly as possible.
Discusses the space settlement proposals of Gerard K. O'Neill, as popularized in his book "The High Frontier". Features pictures and a FAQ.
The organization founded by Gerard O'Neill, with detailed information about his space settlement proposals.
Propulsion systems, business ideas, archives of space meetings and journals, and political advocacy for the space frontier.
Information about O'Neill-type orbiting habitats and why we may want to built them.
Ideas for colonizing the moon, Mars, the asteroid belt and the galaxy.
A group of people, mainly Poles or of Polish origin, who believe that expansion into space is a prerequisite for further development of our civilization. An English version of the site is maintained.
A proposal to grant ownership of land on the moon and Mars to companies that establish settlements and agree to sell passage to anyone willing to pay a fair price.