International Space Station crew members Russian cosmonaut Romanenko, U.S. astronaut Marshburn and Canadian astronaut Hadfield joke as they talk with relatives after putting on their space suits at the Baikonur cosmodrome

International Space Station (ISS) crew members Russian cosmonaut Roman Romanenko (L), U.S. astronaut Thomas Marshburn (C) and Canadian astronaut Chris Hadfield joke as they talk with their relatives after putting on their space suits at the Baikonur cosmodrome December 19, 2012. REUTERS/Shamil Zhumatov (KAZAKHSTAN - Tags: SCIENCE TECHNOLOGY TPX IMAGES OF THE DAY)