The International Space Station (ISS) is one of the most massive and complex machines humanity has ever constructed. Five space agencies came together to put it into orbit and maintain it. These were NASA, Roscosmos, the European Space Agency (ESA), the Japan Aerospace Exploration Agency (JAXA), and the Canadian Space Agency (CSA). The ISS’ first module was launched in 1998, and it took several years before it was fully operational. Since it entered into stable orbit, the ISS has
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