Space advocacy is supporting or advocating for a human use of outer space. Purposes advocated can reach from space exploration, or commercial use of space to even space settlement. There are many different individuals and organizations dedicated to space advocacy. They are usually active in educating the public on space related subjects, lobbying governments for increased funding in space-related activities or supporting private space activities. They also recruit members, fund projects, and provide information for their membership and interested visitors. They are sub-divided into three categories depending on their primary work: practice, advocacy, and theory.
NASA's artistic poster about the human exploration of Mars: "Mars explorers wanted"
Space colonization is the use of outer space for colonization, such as permanent habitation, exploitation or territorial claims. Extraterrestrial colonization is its broader form, including the use of celestial bodies, other than Earth, for colonization.
Artist's rendering of an envisioned lunar mining facility
Artist's rendering of a crewed floating outpost on Venus of NASA's High Altitude Venus Operational Concept (HAVOC)
A picture of the completed Lunar Flag Assembly. The USSR and the US engaged in dropping pennants and raising flags on the Moon while not laying any claims over it, in accordance with the Outer Space Treaty.
Artist Les Bossinas' 1989 concept of Mars mission