An overall view of the station flight control room (BFCR) in Houston’s Mission Control Center (MCC). A large screen at the front of the room shows astronauts Kenneth D. Bowersox and Donald R. Pettit, Expedition Six mission commander and NASA ISS science officer, respectively, during the mission’s only scheduled spacewalk. Robert E. (Bob) Castle, Deputy Chief for ISS, Flight Director Office, is visible at the left