Expedition 30 Commander Dan Burbank signs his autograph for Russian crew support personnel, Friday, April 27, 2012 in a remote area outside of the town of Arkalyk, Kazakhstan. Astronaut Burbank, Russian Cosmonauts Shkaplerov and Ivanishin are returning from more than five months onboard the International Space Station where they served as members of the Expedition 29 and 30 crews. Photo Credit: (NASA/Carla Cioffi)