The International Space Station (ISS) is a habitable artificial satellite that orbits the Earth. It serves as a space environment research laboratory and is a collaborative project involving multiple space agencies, including NASA (United States), Roscosmos (Russia), ESA (European Space Agency), JAXA (Japan Aerospace Exploration Agency), and CSA (Canadian Space Agency).
The ISS serves various purposes, including scientific research across multiple disciplines like biology, physics, astronomy, and meteorology. It also serves as a platform for testing technologies for long-duration space travel and human survival in space. The station has multiple modules where astronauts live and work, conducting experiments and maintaining the station's systems.
Since its launch in 1998, the ISS has been continuously inhabited by rotating crews of astronauts from various countries, and it remains one of the most significant achievements in international cooperation in space exploration.