The newcomers were greeted by station commander Alexander Skvortsov, Mikhail Kornienko, both of Russia, and American Tracy Caldwell Dyson.
The Soyuz spacecraft lifted off Tuesday, initiating a five to six month mission for the station’s newest residents.
Prior to the spacecraft’s arrival, Caldwell Dyson replaced a pump in the oxygen generator of the station’s U. S. segment. The faulty pump, which was installed last week, had a malfunctioning pressure sensor.
The repair ensured adequate levels of oxygen in the breathing air for the larger crew of astronauts and cosmonauts.
The Soyuz parked at the station’s aft docking port.
The new omers will re-board the capsule on June 28 and transfer the Soyuz to a docking port on the station’s new Russian Rassvet mini research and docking module.
Rassvet was delivered to the station by the crew of the shuttle Atlantis in May is not yet equipped for automated Soyuz and Progress dockings.
Yurchikhin and Kornienko will outfit the module for automated dockings during a July 26 spacewalk
