Expedition 24 Commander Alexander Skvortsov, front left, and Flight Engineer Mikhail Kornienko, back left, are helped down the stairs of an airplane after their arrival at Chkalovskaya airport just outside Moscow on Saturday, Sept. 25, 2010. Skvortsov, Kornienko and Expedition 24 Flight Engineer Tracy Caldwell Dyson, landed in their Soyuz TMA-18 spacecraft near the town of Arkalyk, Kazakhstan on Saturday, Sept. 25, 2010. Russian Cosmonauts Skvortsov and Kornienko and NASA Astronaut Caldwell Dyson, are returning from six months onboard the International Space Station where they served as members of the Expedition 23 and 24 crews. Photo Credit: (NASA/Bill Ingalls)