The STS-127 and Expedition 20 crew members

After 11 days of cooperative work onboard the International Space Station and Space Shuttle Endeavour, the STS-127 and Expedition 20 crew members bid farewell to each other prior to the undocking of the two spacecraft at 1:26 p.m. (EDT) on July 28, 2009. Pictured in the foreground are Japan Aerospace Exploration Agency (JAXA) astronaut Koichi Wakata (left), STS-127 mission specialist; cosmonaut Gennady Padalka, Expedition 20 commander; NASA astronaut Mark Polansky, STS-127 commander; and NASA astronaut Tim Kopra, Expedition 20 flight engineer. Pictured in the background are cosmonaut Roman Romanenko, NASA astronaut Michael Barratt and European Space Agency astronaut Frank De Winne, all Expedition 20 flight engineers. (Credit: NASA)