Soyuz MS-06 was a Roscosmos Soyuz MS crew spacecraft, MS No. 734, launched from Baikonur Site 1/5 on September 12, 2017 UTC. It carried commander Aleksandr Misurkin and NASA flight engineers Mark Vande Hei and Joseph Acaba to the International Space Station for Expeditions 53 and 54. The spacecraft remained docked to the station through their long-duration mission and returned the same three crewmembers to Kazakhstan on February 28, 2018.