International Space Station

International Space Station

Modular space station in low Earth orbit

The International Space Station (ISS) is a space station in low Earth orbit (LEO). It is the product of the International Space Station program and is operated by five partner space agencies: NASA, Roscosmos (Russia), ESA (Europe), JAXA (Japan), and CSA (Canada). It is the first space station built, maintained and crewed through international cooperation and the largest human spacecraft ever constructed. It is an orbital research station, where scientific experiments in microgravity are conducted and the space environment is studied. Since 2 November 2000, it has hosted the longest continuous presence of humans in space. Alongside Tiangong, it is one of the only two currently operational space stations.

Also known as...ISS, NA1SS, and Station Alpha
International Space Station Leaks

International Space Station Leaks NASA ordered International Space Station crew to shelter after air leaks in the Russian section, but the order was reversed, allowing normal operations.