ISS030-E-270436 (27 April 2012) --- NASA astronaut Dan Burbank (left), Expedition 30 commander, and Russian cosmonaut Oleg Kononenko, Expedition 31 commander, pose for a photo in the Unity node of the International Space Station. Shortly after this photo was taken, Burbank, along with Russian cosmonauts Anton Shkaplerov and Anatoly Ivanishin, both Expedition 30 flight engineers, undocked from the station for their return to Earth in the Soyuz TMA-22 spacecraft.