EntityQ17212· pop 23· linked from 172 articlesExpedition 21Sign in to save21st long-duration mission to the International Space StationConnectionsNASAConceptInternational Space StationConceptEuropean Space AgencyEntityFrank De WinneEntityUnited StatesCountryRussiaCountryCanadaCountryBelgiumCountryNetherlandsConceptSpace ShuttleEntityRoscosmos State CorporationEntitySoyuzEntityDiscoveryEntityAtlantisEntityspace tourismEntityCanadian Space AgencyEntityCatherine ColemanEntityChris HadfieldEntitySTS-129EntityShannon WalkerEntityCategories2009 in spaceflightExpeditions to the International Space Station