ISS016-E-035623 (10 April 2008) --- The Soyuz TMA-12 spacecraft approaches the International Space Station, carrying Russian Federal Space Agency cosmonauts Sergei Volkov, Expedition 17 commander; Oleg Kononenko, flight engineer; and South Korean spaceflight participant So-yeon Yi. Volkov and Kononenko will spend six months on the station, while Yi will return to Earth April 19 with two of the Expedition 16 crewmembers currently on the complex. Docking with the Pirs Docking Compartment occurred at 8:57 a.m. (EDT) on April 10, 2008.