Video: Change of command aboard International Space Station

Space station commander Scott Kelly and Kjell Lindgren carried out a busy but mostly trouble-free spacewalk Friday, routing ammonia coolant back to the prime radiator used by one of the lab’s solar arrays and bypassing a secondary radiator that was activated three years ago to help pinpoint a coolant leak.

A logistics-delivery vessel for the International Space Station, launched and operated privately by commercial companies on behalf of NASA, is scheduled to arrive at the lab complex Saturday at 6:05 a.m. EDT (1005 GMT).

Three new space station residents blasted off Wednesday on a fast-track six-hour pursuit of the orbiting research complex, kicking off five months in space. The U.S.-Russian-Japanese space crew lifted off at 2102 GMT (5:02 p.m. EDT) from the Baikonur Cosmodrome in Kazakhstan, and docking occurred 0245 GMT (10:45 p.m. EDT).