U.S. Army Colonel Doug Wheelock flew aboard the Soyuz TMA-19 spacecraft to serve as an Expedition 24 flight engineer and commander of Expedition 25 on the International Space Station. In 2007, Wheelock visited the station as an STS-120 mission specialist and conducted three spacewalks.› Biography →
Commander of the Soyuz TMA-19 spacecraft, cosmonaut Fyodor Yurchikhin is serving as a flight engineer for Expeditions 24 and 25 aboard the International Space Station. This marks his third trip to the station, visiting as a member of the STS-112 crew aboard space shuttle Atlantis in 2002 and serving a six-month tour of duty as Expedition 15 commander in 2007.› Biography →
NASA astronaut Shannon Walker flew to the International Space Station aboard the Soyuz TMA-19 spacecraft to serve as a flight engineer for Expeditions 24 and 25. Previously she served as the crew support astronaut for Expedition 14 and lead spacecraft communicator for the STS-118 shuttle mission.› Biography →
Cosmonaut Alexander Kaleri was the Soyuz TMA-01M commander and flight engineer for Expeditions 25 and 26. A veteran of four previous spaceflights, Kaleri last stayed aboard the International Space Station as an Expedition 8 crew member from October 2003 to April 2004.› Biography →
U.S. Navy Captain Scott Kelly flew to the International Space Station aboard the Soyuz TMA-01M spacecraft. He served as an Expedition 25 flight engineer and as commander of Expedition 26. A veteran of two space shuttle missions, Kelly last visited the orbiting complex in August 2007 as commander of the STS-118 mission aboard Endeavour.› Biography →
Cosmonaut Oleg Skripochka flew aboard the Soyuz TMA-01M spacecraft to the International Space Station. He served as a flight engineer for Expeditions 25 and 26. This was Skripochka's first spaceflight.› Biography →
Almost 200 people from 15 countries have visited the International Space Station, but the orbiting complex has so far only ever had human crew members – until now.