Feeds

'Bolt removal issue' hits Hubble spacewalk

Stubborn handrail? Break it off

Application security programs and practises

Astronaut Mike Massimino yesterday used some good, old-fashioned brute force to resolve a "bolt removal issue" during the fourth STS-125 mission spacewalk on the Hubble Space Telescope.

Mike Good and Mike Massimino during yesterday's fourth spacewalk. Pic: NASAMassimo and Mike Good (see pic) were tasked with replacing a low-voltage power supply board on the orbiting 'scope's Space Telescope Imaging Spectrograph (STIS). To do this, they had to remove a panel sitting behind a handrail which refused to budge due to a stripped bolt.

NASA explains: "Massimino followed steps developed quickly at the Goddard Spaceflight Center to carefully bend and break the handrail free. At about three hours into the spacewalk, Massimino broke the handrail free allowing the spacewalkers to proceed with the day’s tasks."

As a result of the stubborn fixing, the spacewalk overran by 90 minutes, eventually ending at 21:47 GMT after 8 hours, 2 minutes - making it the sixth longest spacewalk in history. Good and Massimino didn't have time to fit a new protective thermal insulation panel, and NASA is hoping to slot this into the fifth and final spacewalk, scheduled to begin at 13:16 GMT today.

As well as tackling Hubble's insulation, mission specialists Andrew J Feustel and John M Grunsfeld will finish the job of replacing the telescope's batteries and fit a new fine guidance sensor.

On Saturday, the two astronauts carried out STS-125's third spacewalk, taking over six hours to fit the new Cosmic Origins Spectrograph (COS) and carry out repairs to the Advanced Camera for Surveys (ACS) which failed in 2007 "due to a short circuit in its backup power supply".

Feustel and Grunsfeld succeeded in reviving the ACS's wide field channel, responsible for most of its observations, but were unable to coax the high resolution channel back to life, meaning it's probably now permanently out of action. ®

Build a business case: developing custom apps

More from The Register

next story
Just TWO climate committee MPs contradict IPCC: The two with SCIENCE degrees
'Greenhouse effect is real, but as for the rest of it ...'
BEST BATTERY EVER: All lithium, all the time, plus a dash of carbon nano-stuff
We have found the Holy Grail (of batteries) - boffins
Asteroid's DINO KILLING SPREE just bad luck – boffins
Sauricide WASN'T inevitable, reckon scientists
Flamewars in SPAAACE: cooler fires hint at energy efficiency
Experiment aboard ISS shows we should all chill out for cleaner engines
The Sun took a day off last week and made NO sunspots
Someone needs to get that lazy star cooking again before things get cold around here
Boffins discuss AI space program at hush-hush IARPA confab
IBM, MIT, plenty of others invited to fill Uncle Sam's spy toolchest, but where's Google?
Famous 'Dish' radio telescope to be emptied in budget crisis: CSIRO
Radio astronomy suffering to protect Square Kilometre Array
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Application security programs and practises
Follow a few strategies and your organization can gain the full benefits of open source and the cloud without compromising the security of your applications.
How modern custom applications can spur business growth
Learn how to create, deploy and manage custom applications without consuming or expanding the need for scarce, expensive IT resources.
Securing Web Applications Made Simple and Scalable
Learn how automated security testing can provide a simple and scalable way to protect your web applications.