This is a chronological list of expeditions to the International Space Station (ISS). An expedition to the ISS refers to the crew that is occupying the space station and using it for research and testing. Expeditions can last up to six months and include between two and seven crew members. Expeditions are numbered starting from one and sequentially increased with each expedition. Resupply mission crews and space tourists are excluded (see List of human spaceflights to the ISS for details). ISS commanders are listed in italics. "Duration" is the period of time between the crew's launch from Earth and until their decoupling from the ISS. Future international collaboration on ISS activities has been thrown into doubt by the 2022 Russian invasion of Ukraine and related sanctions on Russia. Completed expeditions Current expedition Future expeditions See also List of human spaceflights to the ISS List of International Space Station crew List of International Space Station visitors List of Mir Expeditions List of ESA space expeditions List of commanders of the ISS Notes References Citations Sources General references NASA's space station crew page SpaceFacts NASA ISS Expedition Mission News releases ISS International Space Station expeditions