Soyuz TMA-15 launched from Roscosmos' Baikonur Cosmodrome in Kazakhstan at 5:34 a.m. CDT on May 27, with International Space Station Expedition 20 crew members Roman Romanenko, Robert Thirsk and Frank De Winne.
Video credit: NASA TV
They are scheduled to arrive at the station at 7:36 a.m. on Friday, inaugurating the long-awaited presence of a six-person crew. It will also mark the first time that all five ISS partner agencies are represented by crew members on the orbiting outpost and will begin Expedition 20.
Romanenko is the Russian Federal Space Agency Roscosmos' second second- generation cosmonaut. His father Yuri Romanenko flew on Soyuz 26, Soyuz 38 and Soyuz TM-2, commanding missions to the Salyut 6 and Mir space stations.
Thirsk, who will serve as a flight engineer for ISS Expeditions 20 and 21, is the Canadian Space Agency's first long duration crew member. His first flight to space was as a payload specialist on the STS-78 Life and Microgravity Spacelab mission.
De Winne will become the first European Space Agency astronaut to command the International Space Station when he leads the Expedition 21 crew. This is his second visit to the ISS, having spent nine days there in 2002 as a member of ESA's Odissea mission.
Photo credit: NASA TV