Two newcomers to the International Space Station (ISS) left on Thursday less than a week after entering space and completed all of their work despite a slightly shorter excursion.
NASA astronauts Drew Feustel and Ricky Arnold quickly installed new wireless antennas and removed leaking hoses from a radiator. They also replaced a broken camera.
"We've done a lot today," Mission Control radioed, congratulating.
The astronauts brought the old equipment back to Earth for ultimate return. It was close to the airlock when the spacewalk ended after six hours and ten minutes.
The spacewalk was scheduled 6 ½ hours, but NASA decided to limit the men's time because of a problem with Feustel's air purification system. However, they managed to do all their jobs and tackled an extra task.
NASA emphasized that Feustel's suit problem had nothing to do with the difficulties he had had earlier in the day. His suit failed three times after he put it on, but he skipped the fourth attempt. That brought the astronauts outside more than an hour late.
"You guys work harder today than at the gym," Mission Control said before the spacewalk began.
Feustel and Arnold shot away from Kazakhstan last Wednesday and arrived two days later at the 250-mile outpost. They stay on board until August. Shuttle astronauts often spacewalking a few days after orbit when they had short flights, but less for station dwellers who spend five to six months in the air.