Station administrator Gennady Padalka and flight engineer Mikhail Kornienko shut the portal on the station's Pirs module at 1951 GMT (1551 EDT), finishing the very nearly six-hour spacewalk to put in new gear and complete support errands.
The cosmonauts completed the campaign 30 minutes in front of calendar in the wake of easily finishing their first undertaking - introducing gear to help team individuals move outside the ISS.
They later finished support on different tests, shot the Russian area of the space station and cleaned an opening window to evacuate years of soil left by fumes exhaust from going to delivers.
"They added to a (cleaning) toolbox with two swabs with handles on them. The swabs are slightly a kind of terry fabric," spacewalk pro Devan Bolch said in a NASA feature distributed before the walk.
"It's sort of like what you would use on your auto headlights, when they get murky, to clean them."
The achievement of the mission will support spirits in Russia, whose once-spearheading space industry has endured a series of mischances which have discolored its notoriety.
A Proton-M bearer rocket wrecked over Siberia minutes after dispatch in May, weeks after specialized issues constrained Russia to surrender a $51 million dollar ISS supply mission.
The undertaking is the fourth ISS spacewalk this year and the tenth for Padalka, who has invested more energy in space than some other individual. It is Kornienko's second wander outside the station, a $100 billion exploration research center possessed and worked by an association of 15 countries.
While the two Russians drifted outside the station, their worldwide partners inside the boat gathered specimens from a trial to develop vegetable produce in space to bolster longer missions.
"(This) denote a breakthrough, the first space-developed lettuce that is really expended in circle by ISS group," NASA mission reporter Victimize Navias.
"Bon appetit," joked U.S. station flight engineer Scott Kelly before tucking into tests of the red romaine lettuce, embellished with oil-and-vinegar dressing.
AFP