What is a human outpost?
A human outpost is an artificially-created, controlled habitat located in an environment inhospitable to humans, such as the ocean floor, the Antarctic, outer space, or another planet.
Short answers, pulled from the story.
A human outpost is an artificially-created, controlled habitat located in an environment inhospitable to humans, such as the ocean floor, the Antarctic, outer space, or another planet.
Salyut 1, placed in low Earth orbit, was the first human outpost in space. Today the International Space Station and China's Tiangong space station are the two functional human outposts in orbit.
NASA uses an underwater habitat to simulate living and working conditions aboard the International Space Station. Astronauts conduct scientific research, practice undersea construction tasks that mimic spacewalk assembly work, and study how isolation affects human behaviour in preparation for future Moon and Mars missions.
Independence-1, previously known as Ixion, is NanoRacks' concept for converting spent rocket upper stages into habitable living areas using a technique called a wet workshop. NanoRacks finalized a contract with NASA and won a NextSTEPs Phase II award to develop the concept as part of its Space Outpost Program.
China de-orbited Tiangong-2 in 2019. China's current Tiangong space station remains one of the two functional human outposts in orbit.
Human outposts in other worlds are a common motif in science fiction, portrayed as settlements built solely by humans or in cooperation and competition with alien species. Settings range from other planets to spaceships large enough to house entire cities.