Astronauts take mission's 3rd and final spacewalk

September 6, 2009 By MARCIA DUNN , AP Aerospace Writer
In this image provided by NASA astronaut John "Danny" Olivas participates in the mission's second session of extravehicular activity Thursday Sept. 3, 2009 as construction and maintenance continue on the International Space Station. During the six-hour, 39-minute spacewalk, Olivas and European Space Agency astronaut Christer Fuglesang (out of frame) installed the new Ammonia Tank Assembly on the space station. (AP Photo/NASA)

(AP) -- Two spacewalking astronauts took on cable and antenna work at the international space station Saturday in their final trek outside, but encountered last-minute difficulty with a connector and had to leave one job undone.

Lead spacewalker Danny Olivas and his partner Christer Fuglesang unreeled 60 feet of cable for a new room that will be added to the orbiting complex early next year. The pair also hooked up a couple of antennas and replaced some electronic equipment in their second excursion in three days.

Everything went well until near the end of the seven-hour , when the two had trouble hooking up one of the cable connectors to a panel on the space station. What's more, Fuglesang's helmet camera came loose and it was difficult for flight controllers to watch him work, given the wobbly, upside-down pictures.

"We thought you were doing tremendous acrobatics," Mission Control radioed.

Mission Control told Fuglesang to wrap insulation around the loose power connector and leave it like that. But then the camera and light assembly on his helmet came off entirely. Olivas removed the still-tethered assembly for him.

With darkness looming, Fuglesang was ordered back to the space station's air lock, while Olivas took over the insulating job late Saturday night.

"Christer, no need to rush but hurry every chance you get. Sunset in about six minutes," astronaut Patrick Forrester urged from inside.

Mission Control advised Fuglesang to use his helmet light as a flashlight if necessary; he was carrying the unit. He made it back safely and speculated he may have bumped his helmet while struggling with the connector. But officials at Mission Control later said it was likely a latch problem.

The cables were routed in advance of the Tranquility live-in chamber that's supposed to be launched in February aboard shuttle Endeavour.

Flight director Heather Rarick said early Sunday that repairs to the connector would be attempted on a future mission, possibly Atlantis' flight in November. The problem could be a thermal issue or sticky mechanism, and the astronauts might have to splice into the connector or seek out an alternate path to get power, when the time comes, to Tranquility.

"We definitely have some time" to deal with it, Rarick said.

Earlier in the evening, the two spacewalkers got off to a fast start, making their way out along a girder and pulling open a shelf that will be used to store big spare parts later this year. Olivas helped install the framework on the right side of the space station two years ago.

"It's like old times, huh, Danny?" Forrester asked from inside.

"You're right, Pat, this is like being at home," Olivas replied.

An identical shelf on the opposite side of the space station jammed when astronauts tried to pull it open back in March. It took a special tool and another mission to get the shelf open. Olivas and Fuglesang had the tool with them in case they ran into trouble, but the job went smoothly.

NASA loaded Saturday night's spacewalk - the third and final one of Discovery's space station visit - with all sorts of odds and ends, most of them mundane.

During the first two spacewalks, astronauts gave the orbiting complex a fresh tank of coolant.

Fuglesang, a Swede, is the only non-American on Discovery's seven-person crew. But the space station has one Belgian, one Canadian, two Russians and two Americans living on it. The combined crews make for a record-tying crowd of 13 in space.

Saturday night's spacewalk was the last major job for the shuttle astronauts before they depart Tuesday. Their 13-day flight is scheduled to end with a landing back in Florida on Thursday.

©2009 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.

Explore further: Swedish ESA astronaut is ready to fly

Related Stories

Swedish ESA astronaut is ready to fly

November 30, 2006

European Space Agency astronaut Christer Fuglesang is about to become the first Swedish and the first Nordic astronaut in space.

Atlantis Docks With Space Station

June 11, 2007

After a busy Sunday in which the STS-117 crew arrived at the International Space Station, attention has turned to the mission’s first spacewalk. The excursion, which will focus on the on-orbit assembly of the station, is ...

Astronauts complete 3rd and final spacewalk

March 23, 2009

(AP) -- Two astronauts who were teaching math and science to middle school students just five years ago went on a spacewalk together Monday, their path cleared of dangerous orbiting junk that had threatened the space station ...

Spacewalkers tackle hefty tank removal in orbit

September 1, 2009

(AP) -- A pair of spacewalkers successfully tackled a hefty tank removal job at the international space station Tuesday as their crewmates unloaded comedian Stephen Colbert's namesake treadmill for all "those famously fat ...

Discovery astronauts ready for final spacewalk

September 5, 2009

Astronauts of the US space shuttle Discovery will venture again into outer space Saturday on a third and final spacewalk of their mission designed to help complete the International Space Station.

Recommended for you

Exoplanets 20/20: Looking back to the future

July 31, 2015

Geoff Marcy remembers the hair standing up on the back of his neck. Paul Butler remembers being dead tired. The two men had just made history: the first confirmation of a planet orbiting another star.

Image: Hubble sees a dying star's final moments

July 31, 2015

A dying star's final moments are captured in this image from the NASA/ESA Hubble Space Telescope. The death throes of this star may only last mere moments on a cosmological timescale, but this star's demise is still quite ...

Earth flyby of 'space peanut' captured in new video

July 31, 2015

NASA scientists have used two giant, Earth-based radio telescopes to bounce radar signals off a passing asteroid and produce images of the peanut-shaped body as it approached close to Earth this past weekend.

Binary star system precisely timed with pulsar's gamma-rays

July 31, 2015

Pulsars are rapidly rotating compact remnants born in the explosions of massive stars. They can be observed through their lighthouse-like beams of radio waves and gamma-rays. Scientists at the Max Planck Institute for Gravitational ...

0 comments

Please sign in to add a comment. Registration is free, and takes less than a minute. Read more

Click here to reset your password.
Sign in to get notified via email when new comments are made.