Feeds

Discovery (finally) good to go on 24 Feb

NASA confident about 'elegant' fuel tank fix

SANS - Survey on application security programs

NASA has announced it has resolved the problem with Discovery's external fuel tank and the shuttle is good to launch on its STS-133 mission to the International Space Station on 24 February.

The vehicle was grounded on 5 November by a fuel leak caused by cracks in two of the tank's 108 U-shaped aluminium brackets, known as "stringers".

Two months of head-scratching have led the space agency to conclude that the problem was caused by "a combination of manufacturing issues and stresses put on the tank when it is filled with supercold liquid oxygen and liquid hydrogen", according to shuttle programme manager John Shannon.

Engineers will now install supportive reinforcements on the stringers in what Shannon described as "an elegant fix to the problem".

He added: "I'm very confident that we have finally figured this out."

Discovery will carry the converted multi-purpose logistics module Leonardo, now destined to become permanent extra storage at the ISS, plus essential spares for the orbiting outpost.

The final shuttle mission, Endeavour's STS-134, will now probably be knocked back from 1 April to 18 April, to allow for additional testing on its external fuel tank, the space agency noted yesterday.

Whether commander Mark Kelly is on board remains to be seen. He's taken a leave of absence to be with his wife Gabrielle Giffords, who's recovering from a gunshot wound to the head she received last Saturday in Tuscon, allegedly at the hands of Jared Loughner.

NASA's associate administrator for space operations, Bill Gerstenmaier, said: "We're going to let Mark decide what he needs to do." ®

Top three mobile application threats

More from The Register

next story
Red-faced LOHAN team 'fesses up in blown SPEARS fuse fiasco
Standing in the corner, big pointy 'D' hats
KILLER SPONGES menacing California coastline
Surfers are safe, crustaceans less so
LOHAN's Punch and Judy show relaunches Thursday
Weather looking good for second pop at test flights
Discovery time for 200m WONDER MATERIALS shaved from 4 MILLENNIA... to 4 years
Alloy, Alloy: Boffins in speed-classification breakthrough
Curiosity finds not-very-Australian-shaped rock on Mars
File under 'messianic pastries' and move on, people
Elon Musk's LEAKY THRUSTER gas stalls Space Station supply run
Helium seeps from Falcon 9 first stage, delays new legs for NASA robonaut
Top Secret US payload launched into space successfully
Clandestine NRO spacecraft sets off on its unknown mission
New FEMTO-MOON sighted BIRTHING from Saturn's RING
Icy 'Peggy' looks to be leaving the outer rings
Melting permafrost switches to nasty, high-gear methane release
Result? 'Way more carbon being released into the atmosphere as methane'
prev story

Whitepapers

Designing a defence for mobile apps
In this whitepaper learn the various considerations for defending mobile applications; from the mobile application architecture itself to the myriad testing technologies needed to properly assess mobile applications risk.
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.
Five 3D headsets to be won!
We were so impressed by the Durovis Dive headset we’ve asked the company to give some away to Reg readers.
The benefits of software based PBX
Why you should break free from your proprietary PBX and how to leverage your existing server hardware.
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.