Shuttle, space station 'slowly moving back' to normal

Restoration of a failed computer system returned life to a regular rhythm on the international space station Sunday, as two astronauts completed the fourth spacewalk since space shuttle Atlantis docked with the outpost a week ago. "We're slowly moving back into a normal mode of operations," station commander Fyodor Yurchikhin radioed Mission Control in Moscow.The "normal mode" included the last spacewalk of the mission, a previously unscheduled fourth trip outside the space station that finished tasks originally scheduled for last Friday's third spacewalk. Astronauts on the third spacewalk had the unplanned job of repairing a thermal blanket, which had peeled back near Atlantis' tail during the June 8 launch. (CNN)