Feeds

ISS set for Friday chill-out

First spacewalk to replace failed ammonia pump

SANS - Survey on application security programs

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. ®

3 Big data security analytics techniques

More from The Register

next story
Most Americans doubt Big Bang, not too sure about evolution, climate change – survey
Science no match for religion, politics, business interests
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
LOHAN and the amazing technicolor spaceplane
Our Vulture 2 livery is wrapped, and it's les noix du mutt
Liftoff! SpaceX Falcon 9 lifts Dragon on third resupply mission to ISS
SpaceX snaps smartly into one-second launch window
Opportunity selfie: Martian winds have given the spunky ol' rover a spring cleaning
Power levels up 70 per cent as the rover keeps on truckin'
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
Dragon capsule arrives at space station for Easter Sunday delivery
SpaceX reports Falcon booster made controlled touchdown in ocean
prev story

Whitepapers

Securing web applications made simple and scalable
In this whitepaper learn how automated security testing can provide a simple and scalable way to protect your web applications.
Combat fraud and increase customer satisfaction
Based on their experience using HP ArcSight Enterprise Security Manager for IT security operations, Finansbank moved to HP ArcSight ESM for fraud management.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
SANS - Survey on application security programs
In this whitepaper learn about the state of application security programs and practices of 488 surveyed respondents, and discover how mature and effective these programs are.
3 Big data security analytics techniques
Applying these Big Data security analytics techniques can help you make your business safer by detecting attacks early, before significant damage is done.