Feeds

ESA readies super-chilled space telescope

Building blocks falling into place

Application security programs and practises

The European Space Agency's (ESA) next big project is a step closer to being launch-ready, as scientists in Germany complete the "mating" of Herschel's two most fundamental modules, the cryostat and the service module.

Artist's impression of the observatory out in space. Credit: ESA

Artist's impression of the observatory out in space.

Credit: ESA

Herschel is an infrared space observatory, scheduled for launch at the end of July 2008. It will carry the largest telescope ever flown in space tuned to study the formation and evolution of stars and galaxies at very long, infrared wavelengths.

ESA scientists hope to use the observatory to find star forming regions, galactic centres, and even to take a closer look at distant planetary systems.

The cryostat will maintain a very low temperature inside the telescope - necessary to protect the sensitive instruments in the harsh and extremely variable space environment. Most of the instruments will be carried inside this section, which the mission planners refer to as the brain of the mission.

The cryostat will be filled with super-fluid helium, which clocks in at just two degrees above absolute zero. There is a further cooling stage in the focal plane units, ESA says, which keeps the instruments at just a third of a degree above absolute zero.

Meanwhile, the rest of the craft is kept relatively warm. The parts of the instruments that don't need to be super chilled, along with all the rest of the equipment for the day to day running of a space observatory, are in the so-called heart of the craft: the service module.

Now that the warm and cold sections have been joined, the almost-completed observatory will go to Astrium and then to ESA's European Space Research and Technology Centre for functional, compatibility, and environmental testing. Provided it aces all of that, it will be combined with the telescope and solar arrays before heading to French Guiana for its launch.

The craft will be blasted into space aboard an Ariane 5 ECA launch vehicle. The rocket will also be carrying ESA's Planck mission, which aims to study relic radiation from the big bang. ®

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.