Feeds

ISS set for Friday chill-out

First spacewalk to replace failed ammonia pump

Secure remote control for conventional and virtual desktops

The first spacewalk to replace the International Space Station's failed ammonia pump module will take place on Friday, NASA has announced.

The ISS is in a "stable configuration" following Saturday's breakdown of the "Pump Module for loop A that feeds ammonia to maintain the proper cooling for systems and avionics".

Attempts to revive the pump were unsuccessful, although with half of the station's cooling system still operative, the situation is not critical.

Expedition 24 members Tracy Caldwell Dyson and Doug Wheelock are tasked with swapping out the failed unit, which sits on the orbiting outpost's S1 truss.

There's a spare pump bolted to an external stowage platform attached to the Quest airlock, which the two astronauts will use to exit and re-enter the ISS.

NASA explains: "In the first spacewalk, they will unbolt and remove the failed pump module, and install the spare. A second spacewalk to hook up a variety of electrical and fluid connections for the new pump module is targeted for Monday."

At Johnson Space Center’s Neutral Buoyancy Laboratory, astronauts Cady Coleman and Suni Williams lent their support to Caldwell Dyson and Wheelock by "practicing underwater the tasks needed to restore the cooling loop over the course of two spacewalks".

Friday's EVA marks the fourth spacewalk for Wheelock, while Caldwell Dyson will be on her first external jaunt. NASA has more on the preparations here. ®

Secure remote control for conventional and virtual desktops

More from The Register

next story
SCREW YOU, Russia! NASA lobs $6.8bn at Boeing AND SpaceX to run space station taxis
Musk charging nearly half as much as Boeing for crew trips
Boffins say they've got Lithium batteries the wrong way around
Surprises at the nano-scale mean our ideas about how they charge could be all wrong
Thought that last dinosaur was BIG? This one's bloody ENORMOUS
Weighed several adult elephants, contend boffins
Europe prepares to INVADE comet: Rosetta landing site chosen
No word yet on whether backup site is labelled 'K'
India's MOM Mars mission makes final course correction
Mangalyaan probe will feel the burn of orbital insertion on September 24th
Cracked it - Vulture 2 power podule fires servos for 4 HOURS
Pixhawk avionics juice issue sorted, onwards to Spaceport America
City hidden beneath England's Stonehenge had HUMAN ABATTOIR. And a pub
Boozed-up ancients drank beer before tearing corpses apart
prev story

Whitepapers

Providing a secure and efficient Helpdesk
A single remote control platform for user support is be key to providing an efficient helpdesk. Retain full control over the way in which screen and keystroke data is transmitted.
Saudi Petroleum chooses Tegile storage solution
A storage solution that addresses company growth and performance for business-critical applications of caseware archive and search along with other key operational systems.
Security and trust: The backbone of doing business over the internet
Explores the current state of website security and the contributions Symantec is making to help organizations protect critical data and build trust with customers.
Reg Reader Research: SaaS based Email and Office Productivity Tools
Read this Reg reader report which provides advice and guidance for SMBs towards the use of SaaS based email and Office productivity tools.
Security for virtualized datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.