ISS016-E-020542 (26 Dec. 2007) --- NASA astronaut Peggy A. Whitson (right), Expedition 16 commander, and cosmonaut Yuri I. Malenchenko, flight engineer representing Russia's Federal Space Agency, work in tandem in the Zvezda Service Module of the International Space Station during the rendezvous and docking of the unpiloted Progress 27 spacecraft.