Expedition 23 Docking

A large TV screen in Russian Mission Control Center in Korolev, Russia shows Expedition 23 Commander Oleg Kotov, right, welcoming NASA astronaut and Flight Engineer Tracy Caldwell Dyson onboard the International Space Station after she and fellow crew members Expedition 23 Soyuz Commander Alexander Skvortsov and Flight Engineer Mikhail Kornienko docked their Soyuz TMA-18 spacecraft on Sunday, April 4, 2010. Photo Credit: (NASA/Carla Cioffi)