Operational Space Stations

International partnership · 1998–present

The International Space Station is a continuously crewed modular laboratory in low Earth orbit, operated as a partnership among NASA, Roscosmos, ESA, JAXA, and the CSA — the largest human-made structure in space.

China · 2021–present

Tiangong is China's modular space station, assembled from the Tianhe core module and the Wentian and Mengtian laboratory modules and continuously crewed since 2022.