Endeavour astronauts wrap up second space walk

May 23, 2011
The space shuttle Endeavour lifts off from the Kennedy Space Center in Florida on May 16. Two astronauts have begun a second of four scheduled space walks of the Endeavour shuttle's final mission to the International Space Station (ISS), the US space agency announced.

Two astronauts completed a second of four scheduled space walks of the Endeavour shuttle's final mission to the International Space Station on Sunday, the US space agency said.

Drew Feustel and Mike Fincke wrapped up their eight-hour, seven-minute spacewalk at 1412 GMT after refilling radiators with ammonia, installing stowage beams near the middle of the main truss, lubricating a solar panel joint and parts of Dextre, one of the orbiting station's robotic arms.

Endeavour Mission Specialist Greg Chamitoff, who participated in the first spacewalk of the mission, coordinated communications between the and mission control in Houston and choreographed their activities from inside the ISS, according to NASA officials.

Greg Johnson and Expedition 27 crew member Cady Coleman operated the space shuttle and space station robotic arms in the later portion of the spacewalk.

During their first task, the spacewalking astronauts rerouted an ammonia jumper cable between cooling loops on port-side truss segments.

They then topped off off ammonia in a slowly leaking cooling loop.

Fincke later removed covers over the port solar alpha rotary joint, which allows the solar arrays to track the sun, in order to lubricate its race ring.

This NASA image shows the space shuttle Endeavour docked with the the International Space Station (ISS) on May 19. Two astronauts have begun a second of four scheduled space walks of the Endeavour shuttle's final mission to the ISS, the US space agency announced.

After a bolt holding the covers was lost, mission control ordered him to remove four of the covers instead of six as had been initially planned.

partially rotated the joint to spread the lubricant after Fincke completed the first of two planned lubrications of the race ring.

Feustel installed a camera cover on Dextre, operated remotely by Johnson and Coleman, and lubricated one of the Canadian robot's arms.

Coleman was working on her last full day at the ISS before her scheduled return to Earth on Monday with other Expedition 27 crewmembers.

Fincke installed two radiator grapple bar stowage beams on a truss segment before giving the joint a second round of lubrication with Feustel.

The pair reinstalled three of the four joint covers, with the fourth due to be installed later.

Johnson put in around three hours of stowage, while Mission Specialist Roberto Vittori spent much of the afternoon transferring supplies and equipment between Endeavour and the station and stowage area.

The spacewalk was Feustel's fifth and the seventh for Fincke, the 157th in support of space station assembly and maintenance and the 246th conducted by US astronauts.

Endeavour blasted off on its final mission Monday with six astronauts on board -- five Americans and one Italian -- and docked at the ISS on Wednesday.

The Endeavour mission is being commanded by astronaut Mark Kelly, the husband of US Representative Gabrielle Giffords, who is recovering after being shot in the head at a January political meeting with local voters.

The shuttle will remain at the space station until May 30, returning to the United States on June 1.

The 30-year US space shuttle program formally ends later this year with the flight of Atlantis, leaving Russia's space capsules as the sole option for world astronauts heading to and from the orbiting research lab.

Explore further: SpaceX making Easter delivery of station supplies (Update 2)

add to favorites email to friend print save as pdf

Related Stories

Spacewalking astronauts encounter bolt trouble

May 22, 2011

A spacewalking astronaut ran into trouble Sunday while trying to lubricate a joint in the life-sustaining solar power system of the International Space Station, losing one bolt and getting a washer stuck in ...

Space shuttle Endeavour readies return to Earth

Jul 28, 2009

The space shuttle Endeavour undocked from the International Space Station on Tuesday to take photographs of the orbiting research facility before final maneuvers to prepare its return home.

US Discovery astronauts step out on last spacewalk

Mar 02, 2011

Two US astronauts on Wednesday stepped out on the second and final spacewalk of the Discovery shuttle mission at the International Space Station to work on repairs at the orbiting lab.

Recommended for you

Sun emits a mid-level solar flare

22 hours ago

The sun emitted a mid-level solar flare, peaking at 9:03 a.m. EDT on April 18, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful ...

Impact glass stores biodata for millions of years

Apr 18, 2014

(Phys.org) —Bits of plant life encapsulated in molten glass by asteroid and comet impacts millions of years ago give geologists information about climate and life forms on the ancient Earth. Scientists ...

The importance of plumes

Apr 18, 2014

The Hubble Space Telescope is famous for finding black holes. It can pick out thousands of galaxies in a patch of sky the size of a thumbprint. The most powerful space telescope ever built, the Hubble provided ...

Ceres and Vesta Converge in Virgo

Apr 18, 2014

Don't let them pass you by. Right now and continuing through July, the biggest and brightest asteroids will be running on nearly parallel tracks in the constellation Virgo and so close together they'll easily ...

User comments : 0

More news stories

Sun emits a mid-level solar flare

The sun emitted a mid-level solar flare, peaking at 9:03 a.m. EDT on April 18, 2014, and NASA's Solar Dynamics Observatory captured images of the event. Solar flares are powerful bursts of radiation. Harmful ...

Airbnb rental site raises $450 mn

Online lodging listings website Airbnb inked a $450 million funding deal with investors led by TPG, a source close to the matter said Friday.

Health care site flagged in Heartbleed review

People with accounts on the enrollment website for President Barack Obama's signature health care law are being told to change their passwords following an administration-wide review of the government's vulnerability to the ...