A space station, also known as an orbital station or an orbital space station, is a spacecraft capable of supporting a human crew in orbit for an extended period of time. It lacks major propulsion or landing systems. Stations must have docking ports to allow other spacecraft to dock to transfer crew and supplies.
The purpose of maintaining an orbital outpost varies depending on the program. Space stations have most often been launched for scientific purposes, but military launches have also occurred. As of 2020, one fully operational and permanently inhabited space station is in low earth orbit: the International space station (ISS), which is used to study the effects of long-term space flight on the human body as well as to provide a location to conduct a greater number and longer length of scientific studies than is possible on other space vehicles. China,India,Rusia, and the US, as well as Begilow arrowspace and Axiom space, are all planning other stations for the coming decades.
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