Hubble Camera Lost "For Good" 190
Several readers wrote in to tell us, following up on the recent story of the shutting down of Hubble's main camera, that program engineers are now saying that the camera is probably gone for good. The trouble resulted from a short circuit on Saturday in Hubble's most popular instrument, the Advanced Camera for Surveys. NASA engineers reported Monday that most of the camera's capabilities, including the ability to take the sort of deep cosmic postcards that have inspired the public, had probably been lost. We'll be pining for more of those amazing images until the James Webb launches in 2013.
Update: 01/30 23:28 GMT by KD : Reader Involved astronomer wrote in with an addendum / clarification to this story: "I'm a grant-funded astronomer at the Space Telescope Science Institute (www.stsci.edu) in Baltimore. I am very concerned that the article conveys the wrong idea about HST. While HST's science capacity is diminished with the loss of ACS, HST lives on and will continue to produce world-class science, even before its servicing mission in Sept. 2008, which will upgrade the instrument suite with the most sophisticated imagers in history." Read on for the rest of his note.
I'd like to point out these facts:
Update: 01/30 23:28 GMT by KD : Reader Involved astronomer wrote in with an addendum / clarification to this story: "I'm a grant-funded astronomer at the Space Telescope Science Institute (www.stsci.edu) in Baltimore. I am very concerned that the article conveys the wrong idea about HST. While HST's science capacity is diminished with the loss of ACS, HST lives on and will continue to produce world-class science, even before its servicing mission in Sept. 2008, which will upgrade the instrument suite with the most sophisticated imagers in history." Read on for the rest of his note.
- A fuse blew on ACS side two electronics — This will LIKELY (we're not 100% sure yet) render the Wide-field channel and the High-resolution channel (e.g. 2/3rds of the camera) inoperable. The solar blind channel will likely be returned to operation.
- While we have lost (2/3rds) of ACS, NICMOS and WFPC2, two fantastic imagers, are still operational. WFPC2 is responsible for many of the gorgeous images that grace many of your desktop wallpapers.
- ACS had an expected lifetime of 5 years. It met that lifetime. The loss of ACS, while of course disappointing, is not necessarily a shock.
- Servicing mission 4 is currently scheduled for Sept. 2008. It will upgrade HST to never-before-seen scientific capability and productivity. The Wide-Field Camera 3, which will be installed then, will essentially be an even more sophisticated successor to ACS.
You can view one of our press releases on this here: http://hubblesite.org/acs/.
No time in the upcoming servicing mission (Score:3, Informative)
Re:Not really . . . (Score:3, Informative)
keeping the masses 'in favor' of spending on space involves giving them some of the stuff they want, namely the magnificent pictures Hubble has been providing for years.
If they can't see it, then they won't want to fund it as much.
Re:Not really . . . (Score:3, Informative)
Looks like we will in fact be waiting till at least 2013 for any new deep field images. Atleast there is still a ton of science to be done on the existing data... So, in reality, this is much more of a loss for the armchair astronaut than it is to the real science teams.
Re:Looks like my wallpaper won't be changing for a (Score:2, Informative)
Re:think i can wait... (Score:5, Informative)
For those of you questioning whether or not Hubble should be serviced or just wait for James Webb, you ought to know that Hubble and James Webb will not cover the same wavelengths. Hubble covers UV, visible, and near-infrared. James Webb will cover Near to mid-infrared. James Webb can't do all the science that Hubble can and vice versa. However, ground-based adaptive optics imaging are hoped to be able to provide image quality as good as Hubble by the time it is ready to be retired sometime in the next decade. Also, because of the atmosphere, from the ground, we cannot observe all the infrared wavelengths that James Webb will be able to.
Re:The Beeb Disagrees... (Score:1, Informative)
service it quick (Score:4, Informative)
If you still want pretty pictures for your desktop - this is not really the point but its astronomy for the soul which is very important - then theres a fairly large collection of ACS images http://www.spacetelescope.org/images/archive/free
Re:Could the NSA help? (Score:4, Informative)
I realize the optics aren't set up to do far-field imaging, but maybe it'd be cheaper and quicker than waiting to fix the Hubble?
An intriguing idea. However, I don't think it will work. The focus would not be the major issue though, as the difference in focussing between 500km and 500pc is relatively minor.
I suspect the main issue would be noise. Hubble's CCDs were specifically designed to have the lowest possible noise, whereas in the case of an NSA satellite, they have so much more signal from Earth (>1000x) than from the next dimmest thing in the solar system that the system might not be physically capable of taking the necessary long exposures. However, they might be able to do some sort of astronomy with a series of stacked images, much as is done with web cam astronomy. [navy.mil] Anyway, just some thoughts... there are probably other reasons it hasn't been done yet that I haven't thought of yet....
Re:Looks like my wallpaper won't be changing for a (Score:2, Informative)
Misleading. You will still have great wallpapers (Score:5, Informative)
Hubblesite.org has a good layman's description [hubblesite.org] of the instruments on the Hubble.
Also, we're still getting many fine images of the planets, stars, galaxies, and nebulae around us from the Spitzer [nasa.gov] and the multitude of ground-based [nasa.gov] scopes that make great backgrounds. And don't forget the fantastic Mars rovers [nasa.gov] or Cassini. [nasa.gov]
James Webb is not a replacement.. (Score:2, Informative)
Far to often people speak about James Webb as the ultimate replacement for Hubble. However the optical and UV bands will be lost without it.
Re:No time in the upcoming servicing mission (Score:2, Informative)
Information on the Hubble Servicing Mission can be found from NASA's Hubble site:
http://www.nasa.gov/mission_pages/hubble/servicin
Re:Not really . . . (Score:3, Informative)
The SHUTTLE fleet is being decommisioned, NOT the ISS.
No, they couldn't. (Score:3, Informative)
Mainly because NSA doesn't have any cameras up there. You're thinking of NGA, the National Geospatial-Intelligence Agency [wikipedia.org].