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A space station is a man-made structure that is designed for human beings to live on in outer space. A space station is distinguished from other manned spacecraft by its lack of major propulsion or landing facilities - instead, other vehicles are used as transport to and from the station. Space stations are designed for medium-term living in orbit, for periods of weeks, months, or even years.

Space stations are used to study the effects of long-term space flight on the human body as well as to provide platforms for greater number and length of scientific studies than available on other space vehicles.

Past and present space stations:

• Salyut stations: Salyut 1, Salyut 2, Salyut 3, Salyut 4, Salyut 5Salyut 5 was launched on June 22, 1976 from the Baikonur Cosmodrome aboard a Proton 8K82K rocket. It was the third and last Almaz military space station, included in the Salyut program to conceal its true purpose. Its launch and subsequent mission were bo, Salyut 6Salyut 6 was launched on September 29, 1977. Although it resembled the previous Salyut space stations in overall design, it featured several revolutionary advances including a second docking port where a unmanned Progress cargo spacecraft could dock and r, Salyut 7Salyut 7 was launched on April 19, 1982, the last of the Salyut space station program. It was the back-up vehicle for Salyut 6 and very similar in equipment and capabilities, though several more advanced features were included. It was aloft for four years
• SkylabAlternative meaning: research facility in the South Pole Station America's first space station, the 75 ton Skylab was in Earth orbit from 1973-1979, and visited by crew three times in 1973 and 1974. It was launched May 14, 1973 on an unmanned mission by a
• MirThis article is about Mir the Soviet space station. See Mir (disambiguation) for other meanings. Mir (, which can mean both world and peace in Russian) was a Soviet (and later Russian) space station. It was humanity's first permanently inhabited space sta
• International Space StationOverview Continuing on from the United States' Skylab and Russia's Mir, the International Space Station ISS represents a permanent human presence in space: it has been manned with a crew of at least two since November 2, 2000. Each time that the crew is r (ISS)

Additionally, Bigelow AerospaceBigelow Aerospace is a Las Vegas, Nevada space technology start-up company that is pioneering work on expandable space station modules. An expandable module is a space structure that has a flexible outer shell, allowing conservation of diameter for launch is commercially developing inflatable habitat modules, intended to be used for space station construction.

Since the flight of Soyuz 11Soyuz 11 succeeded in completing the mission that Soyuz 10 had failed at carrying cosmonauts to live on the world's first space station, Salyut 1. Cosmonauts Georgi Dobrovolski, Viktor Patsayev, and Vladislav Volkov spent three weeks testing the Salyut's/ Salyut 1, all manned spaceflight duration records have been set aboard space stations. The duration record of 437.7 days was set aboard Mir in 1994-1995. As of 2003, 3 astronauts have completed single missions of over a year, all aboard the space station Mir.

Some space station designs have been proposed which are intended as long-term space habitats for large numbers of people, essentially " cities in space" where people would make their homes. Thus far all such designs are only hypothetical, and have never been seriously considered for actual implementation.

List of occupied space stations

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Topics: Space Station Salyut Stations Aboard Mir Designs Set Manned...

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