Astronauts go spacewalking to hang station shields (Update)

August 20, 2012 by MARCIA DUNN
International Space Station. Credits: ESA

Spacewalking astronauts improved the safety of their orbiting home Monday by installing shields to protect against zooming pieces of junk.

Gennady Padalka and Yuri Malenchenko hung the panels on the Russian side of the International Space Station, after moving a bulky crane and tossing overboard a small spherical satellite.

The Russian spacewalking powerhouse — the two have 14 spacewalks between them — kept going even after Mission Control in Moscow advised them to take a break 3½ hours into their six-hour excursion.

They surged ahead despite a late start to Monday's spacewalk, the first at the space station in six months. A leaky valve somewhere on the Russian side forced the crew to reopen the air lock and check the seals to ensure a tight fit, before Padalka and Malenchenko could go out. Padalka assured flight controllers they were in no rush, but admitted it was "kind of boring" to wait an extra hour.

The five 1-inch(2.54-inch)-thick micrometeorite debris panels were supposed to be installed during a previous spacewalk in February, but got put on hold when other work ran long. The pieces were hauled up by the now-retired space shuttles.

Armor is needed to reinforce the Russian segment, which unlike the U.S. compartments, arrived without the proper protection already in place. Such shielding is crucial given the booming threat of space junk; even a tiny scrap can inflict damage.

A 46-foot (14-meter) crane, meanwhile, needed to be moved from one spot on the Russian portion of the space station to another, in advance of the arrival of a new chamber a year or two from now. The astronauts used a companion crane for the job.

And the 20-pound(9-kilogram), 1.7-foot (1/2-meter)-diameter research satellite hurled by Padalka will orbit for about three months before burning up in the atmosphere, allowing Russian engineers to track its movement as part of a study on space junk.

This was the ninth spacewalk for Padalka and the fifth for Malenchenko. It was overseen from Moscow and went so well that flight controllers added some extra chores for the two. The only snag was an experiment that wouldn't close properly for retrieval; the spacewalkers were told to leave it outside.

"Five hours did you say?" one of the spacewalkers asked at the five-hour mark. "Oh, we can stay for another hour, what do you think?"

"That's it," Mission Control replied. The two were urged to "marvel at the world around you" before taking some pictures and calling it quits. The spacewalk lasted six hours.

An American and a Japanese astronaut will venture out next week on a NASA-directed spacewalk.

Spacewalks are no longer commonplace, now that the space station is virtually complete and running fairly trouble-free. It is home to six astronauts.

Explore further: Delayed spacewalk ends successfully

0 shares

Related Stories

Delayed spacewalk ends successfully

June 5, 2009

(AP) -- Two international space station crew members wrapped up a successful spacewalk Friday, the first since the size of the station's crew expanded from three to six last month.

Space station astronauts 'spacewalk' in airlock

June 10, 2009

(AP) -- Two international space station crewmen squeezed into a small airlock Wednesday and moved a docking mechanism to accommodate a research module expected to arrive later this year.

Spacewalking astronauts nix release of satellite

August 3, 2011

(AP) -- Flight controllers halted the release of a ham radio satellite outside the International Space Station by a pair of spacewalking astronauts Wednesday because one antenna may be missing.

Spacewalking astronauts move crane, skip shields

February 16, 2012

Two spacewalking astronauts moved a construction crane outside the International Space Station on Thursday, a cumbersome job that took so long they scrapped hanging shields to protect against space junk.

ISS crew to embark on two spacewalks in August

August 14, 2012

Four International Space Station crew members will embark on two spacewalks to install new equipment and replace defective installations, the US space agency NASA said Tuesday.

Recommended for you

Will SETI's unprecedented new program finally find E.T.?

August 4, 2015

Stephen Hawking, Frank Drake and dozens of journalists gathered at the Royal Society in London last week to hear astronomers announce a ground-breaking new project to search for intelligent extraterrestrial life called "Breakthrough ...

Tracking a mysterious group of asteroid outcasts

August 4, 2015

High above the plane of our solar system, near the asteroid-rich abyss between Mars and Jupiter, scientists have found a unique family of space rocks. These interplanetary oddballs are the Euphrosyne (pronounced you-FROH-seh-nee) ...

Dense star clusters shown to be binary black hole factories

July 29, 2015

The coalescence of two black holes—a very violent and exotic event—is one of the most sought-after observations of modern astronomy. But, as these mergers emit no light of any kind, finding such elusive events has been ...

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.