The ISS is an international, modular space station in low Earth orbit operated by NASA, Roscosmos, ESA, JAXA, and CSA.
The International Space Station (ISS) is a modular space station in low Earth orbit, built and operated through international cooperation by five partner agencies: NASA (United States), Roscosmos (Russia), ESA (Europe), JAXA (Japan), and CSA (Canada). It was created by combining earlier national station concepts and has been continuously inhabited since November 2000, making it the longest-running human presence in space. The ISS’s purpose is to serve as a research platform in microgravity and to study the space environment. It supports scientific experiments, including work that benefits from weightlessness, and it also functions as a staging and operational base for human spaceflight. Over time, its mission expanded beyond pure research to include commercial, diplomatic, and educational roles, supporting outreach and international collaboration.
The ISS is an international, modular space station in low Earth orbit operated by NASA, Roscosmos, ESA, JAXA, and CSA.
Its primary purpose is orbital research—especially scientific experiments in microgravity and studies of the space environment.
The ISS mission has broadened to include commercial, diplomatic, and educational functions in addition to research and exploration support.
A region of space close to Earth where the ISS orbits, enabling frequent access to Earth and efficient observation and operations.
A near-weightless condition experienced in orbit that allows experiments to be conducted without the effects of normal gravity.
The collaborative framework among multiple space agencies that designs, builds, funds, and operates the ISS as a shared program.
A space facility dedicated to conducting experiments and observations in orbit, particularly those requiring microgravity.
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