 The handover between Expedition 20 and Expedition 21 required three Soyuz vehicles being docked to the station at the same time, the first time this has occurred.Soyuz TMA-16 brought the final members of Expedition 21 to the ISS, along with space tourist Guy Laliberté.Laliberté returned to Earth on Soyuz TMA-14 with two members of Expedition 20 on 11 October 2009.