What is the International Space Station?

The International Space Station, often abbreviated as the ISS, is a large spacecraft that orbits Earth at an average altitude of approximately 400 kilometers. It serves as a unique laboratory where astronauts from various countries conduct scientific research across multiple disciplines, including biology, physics, astronomy, and Earth science. The ISS is a collaborative effort involving space agencies such as NASA, the Russian space agency Roscosmos, the European Space Agency, the Japan Aerospace Exploration Agency, and the Canadian Space Agency. It was constructed through a series of missions that began in 1998, and it has since been continuously inhabited since November 2000. The station provides an environment for long-duration human spaceflight, allowing researchers to study the effects of microgravity on the human body and other biological systems. Furthermore, it serves as a platform for international cooperation in space exploration and technology development. The ISS is equipped with various modules and facilities, which include living quarters, laboratories, and solar panels for power generation. For additional information about the International Space Station, one may wish to explore the relevant section on NASA's website.