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Final Repair Mission To Extend Hubble's Life

necro81 writes "The NYTimes has an in-depth piece describing an upcoming shuttle mission, scheduled for next August, to make a final service call to the Hubble Space Telescope. After the Columbia accident and the scheduled shuttle decommission in 2010, additional service trips to the telescope were off the table. The resulting hue and cry from scientists, legislators, and the public forced NASA to reconsider. Next August, if all goes well, Atlantis will grab Hubble, replace its aging gyros, attempt to revive the Advanced Camera for Surveys, and install a new camera and spectrograph. The telescope could then continue doing science well into the next decade."

125 comments

  1. Doing science by colourmyeyes · · Score: 0

    "The telescope could then continue doing science well into the next decade." If they find Atmospherium in that comet, it could mean real advances in the field of science.
    --
    My grandmother used anecdotal evidence all the time, and she lived to be 120 years old.
    1. Re:Doing science by dakranon · · Score: 3, Funny

      I'm doing Science and I'm still alive!

    2. Re:Doing science by Treskin · · Score: 3, Funny

      NASA is currently working on Zero-G stable frosting in order to stock Hubble with enough cake to do years worth of science.

    3. Re:Doing science by LiquidCoooled · · Score: 1

      I guess I wasn't the only one singing to myself after reading the summary then.

      Its really good that Hubble isn't going to be abandoned, I hope she can last until then.

      --
      liqbase :: faster than paper
    4. Re:Doing science by Nullav · · Score: 1

      Nothing but lies!

      --
      I just read Slashdot for the articles.
    5. Re:Doing science by yoder · · Score: 1

      I was quite happy myself. Hubble has been one hell of a shot in the arm for NASA. Astronomers can use infrared and gamma ray detection, but when they publish a pixilated picture of a red, blue and green blob and say "this is groundbreaking science", the non-scientists say "right, and that pixilated picture of a red, blue and green blob cost how much?". With the Hubble and similar visible spectrum telescopes, they can show a beautiful high resolution picture of the object along side the pixilated picture of a red, blue and green blob and say "this is groundbreaking science", and the non-scientists will say "Wow, that is beautiful". Great science and even better P.R. for NASA.

      --
      "In a time of universal deceit, telling the truth is a revolutionary act!" -- George Orwell (Eric Arthur Blair)
  2. Other than the Apollo missions... by Chess_the_cat · · Score: 5, Insightful

    The Hubble has to be NASA's greatest success. And where Apollo was a triumph in engineering, Hubble is a triumph in pure science.

    --
    Support the First Amendment. Read at -1
    1. Re:Other than the Apollo missions... by wildsurf · · Score: 5, Informative

      And where Apollo was a triumph in engineering, Hubble is a triumph in pure science.
      Well, except for that pesky myopia debacle.
      --
      Weeks of coding saves hours of planning.
    2. Re:Other than the Apollo missions... by filterban · · Score: 3, Interesting

      Yes, there was a flaw in the mirror. I remember the size of the flaw being described at a space museum tour as:

      "Take one strand of your hair. Cut it lengthwise 36 times; take one of those strands and cut it another 36 times lengthwise."

      To me, that just underscores the difficulty in putting a telescope in space. True, the flaw was considered a debacle, but NASA fixed it by correcting the instruments on the telescope by an equally offsetting amount. This has led to amazing discoveries and the Hubble can largely be viewed as a success.

      In my mind, it's a shame that we won't be keeping it running past 2013.

      --
      rm -rf /
    3. Re:Other than the Apollo missions... by SydShamino · · Score: 0, Troll

      That, and when they fixed the lens they also replaced all of the on-board electronics, because JPL and NASA had consumed too much of the component life before the satellite was even launched into space.

      Hint: if you want to lifetime test a part to make sure it's reliable, don't use that part in your satellite after burning up its usable life. Buy two parts from the same batch, test one, and use the other one.

      Both NASA and JPL tested the heck out of it, and as a result it failed almost immediately.

      --
      It doesn't hurt to be nice.
    4. Re:Other than the Apollo missions... by khallow · · Score: 2, Informative

      The flaw was a lot bigger than that. As I dimly recall it, they did a "knife edge" test on the Hubble and placed the edge significantly out of place. Supposedly, a human could have easily run the knife edge test and detected the flaw visually. But the error was done precisely to around an eighth of a wavelength of visual light (not sure what the frequency was). So it was possible to get good pictures just by processing the images. Further, the precision of the error meant that the corrective optics restored almost all of the telescope's resolving power.

    5. Re:Other than the Apollo missions... by twiddlingbits · · Score: 1

      Source of your information please? I think this is wrong. I worked on Hubble (software) and I NEVER heard that story and I knew many people from the original development team.

    6. Re:Other than the Apollo missions... by DerekLyons · · Score: 4, Interesting

      That, and when they fixed the lens they also replaced all of the on-board electronics, because JPL and NASA had consumed too much of the component life before the satellite was even launched into space.

      Except - they didn't replace all the on-board electronics when they installed the fix for the mirror. (Hubble's problem was a flawed mirror - not a flawed lens.)
       
       

      Hint: if you want to lifetime test a part to make sure it's reliable, don't use that part in your satellite after burning up its usable life. Buy two parts from the same batch, test one, and use the other one.

      Hint: NASA and JPL know that. You don't seem to know much of anything, since both of the 'facts' in your introductory statement are actually 'fantasies'.
    7. Re:Other than the Apollo missions... by IcePop456 · · Score: 1

      Assuming we overlook the fact that the majority of the costs for Hubble were from flying it on the Space Shuttle, then I will agree that it is a NASA success story. Otherwise, I think it is a decent PR success for NASA but poorly executed from the beginning (aka when they decided to launch it on the shuttle). I thought I hard something like up to 6 Hubble's could have been launched (5 blown up) and we would have the exact same functionality as the current one, as long as we used an unmanned rocket. As much as I love NASA, lets not give them a pass for over engineering the launch - it did NOT require the shuttle. Fitting the thing in the cargo bay and manging the weight were probably difficult compromises that had to be made. And yes, it could have still be serviceable. Then again, I guess they needed to justify the stupid shuttle.

    8. Re:Other than the Apollo missions... by DynaSoar · · Score: 1

      >> And where Apollo was a triumph in engineering, Hubble is a triumph in pure science.

      > Well, except for that pesky myopia debacle.

      Despite which its first light picture was better than any ground based scopes could manage. It showed a known star to be a binary, a fact which wasn't known prior. That's a pretty poor debacle compared to, say installing an accelerometer upside down and doing very expensive post hole digging with a dust collection satellite.

      --
      "I may be synthetic, but I'm not stupid." -- Bishop 341-B
    9. Re:Other than the Apollo missions... by CJ145 · · Score: 5, Informative

      In 2013 there is suppose to be a new telescope that should be capable of replacing Hubble. http://www.jwst.nasa.gov/

    10. Re:Other than the Apollo missions... by Nimey · · Score: 4, Funny

      Fact: NASA faked the Hubble's launch into orbit. Actually, Chuck Norris roundhouse-kicked it up there, and it's afraid to come back down.

      --
      Hail Eris, full of mischief...

      E pluribus sanguinem
    11. Re:Other than the Apollo missions... by Sanat · · Score: 4, Interesting

      "That's a pretty poor debacle compared to, say installing an accelerometer upside down"

      We fired a missile out of Vandenburg a few years ago that had the angular accelerometer wires color coded backwards. The test coil was wired correctly so all diagnostics passed.

      When the missile was fired and cleared the underground silo it was normal for the missile to pitch towards 70 degrees. As it approached that angle the the speed of pitching is reduced to zero, however if the accelerometer is reverse wired then the missile pitches faster instead of slower and the missile simply cleared the silo wall and pitched level to the ground shooting across the fields at what seemed to be a thousand miles an hour and it started a couple of fires and also caused a lot of scrambling of onlookers until the range officer was able to destruct it.

      We were out with our field jackets extinguishing the fires and then had to pick up all of the unburned propellant (green solid fuel).

      Of course, we kept some propellant back and would ignited it in ashtrays and stuff like that as practical jokes. I wonder how I survived some of the stuff I was involved with in those days.

      --
      And in the end, the love you take is equal to the love you make
    12. Re:Other than the Apollo missions... by ravenspear · · Score: 1

      While that is true, the JWST can not image in the visible light wavelengths like Hubble, so we won't get actual pictures we can see, except false color ones derived from the infrared data.

    13. Re:Other than the Apollo missions... by MechBill2112 · · Score: 1

      JWST will be an incredible science instrument. But, it cannot "replace" the HST. JWST will do infrared much better than any other instrument, whereas HST currently covers UV, visible, and some IR.

    14. Re:Other than the Apollo missions... by Jesterboy · · Score: 1

      Hint: if you want to lifetime test a part to make sure it's reliable, don't use that part in your satellite after burning up its usable life. Buy two parts from the same batch, test one, and use the other one. Hint: NASA and JPL know that. You don't seem to know much of anything, since both of the 'facts' in your introductory statement are actually 'fantasies'. Actually, this is exactly what NOT to do, and NASA/JPL do not do it this way. You do actually WANT to burn away a significant portion of a part's usable life before putting it into space. Basically, you're trying to chop off the beginning of the bell curve; some of these devices have very short lifetimes, and you want to make absolutely sure you eliminate them. Once a part makes it through a certain point in its usable life, you know to a high degree of probability that it will last for quite some time after that.

      This is especially important when it comes to ESD (static shock). ESD-damaged parts may perform excellently at first, but could utterly fail later on. When dealing with the extremely sensitive devices such as the ones going into Hubble, the potential differences they can handle are usually on the order of several hundred volts. The potential difference required for a human being to even notice static shock is on the order of 3000V, so you could damage these parts by walking by them, and you wouldn't even know it. NASA mitigates this risk by enforcing strict handling procedures during all stages of the part's life, and by performing accelerated aging tests.

      You may ask, why would you want do this? Why would you put a "used" part into space when you could just take another one from the same wafer? The answer is there's no guarantee those parts are remotely similar. Even parts from the same batch will have minor differences just from fabrication. The sum of these imperfections will lead to certain noise characteristics, sensitivities, and possible failure in each part. Each part goes through many steps to actually be useful, too; they get diced off of a silicon wafer, wire bonded, packaged, etc. Each of these steps is a possible point of failure, and a chance to introduce damage. So what do you do? You perform strenuous, accelerated aging tests on ALL of the parts that make it through this process, including the ones that go into space. This involves forcing them to the extremes of their operational ranges, pushing them well beyond their intended operating environment. You then choose the flight candidates from this pool. During this testing ones will fail partially, or get noisier, which makes them perfect for destructive tests or engineering grade parts used in system testing / verification. From the remaining parts, you have a high level of certainty they will last for at least X years, and then it's just a matter of choosing the best performing one to be blasted into orbit. E pluribus unum.

      I was kind of surprised to learn this too, but these NASA guys have been doing this stuff for decades, and they've gotten pretty good at it. Any sort of critical, space-bound component goes through this kind of testing. It's really impressive to be involved in this sort of process firsthand, and see the thought, time, and man hours that goes into each electronic device. The article seems to focus on the astronauts flying up to repair it, but don't forget there's a legion of people behind them working just as hard, if not harder, to make this mission successful.

      The brand new parts start out at tens of thousands of dollars a piece. At the end, the "used" parts are worth millions.
  3. Aging gyros? by Bobb+Sledd · · Score: 3, Funny

    I wonder if those are lamb or beef gyros...

    (Yes I know it is bad.)

    --
    "They said I probly shouldn't fly with just one eye," "I am Bender. Please insert girder."
    1. Re:Aging gyros? by Facetious · · Score: 1

      That's OK. When I read TFS, I had this image in my head of Edwin Hubble happily fishing out on the ocean, only to be grabbed by the sunken city of Atlantis below him. The sad part is that I don't even do drugs.

      --
      Let us not become the evil that we deplore.
    2. Re:Aging gyros? by strcpy(NULL,... · · Score: 1

      (Yes I know it is bad.)
      In fact, beef gyros are pretty good with mayonnaise..
      --
      echo 'cat sig | sh' > sig
    3. Re:Aging gyros? by wgoodman · · Score: 1

      Does it matter if it's lamb or beef? Any meat will be bad after that long!

    4. Re:Aging gyros? by Muad'Dave · · Score: 1
      Not after being stored in the universe's best Seal-A-Meal - no air, and temps near absolute zero. Ron Popeil would be proud!


      [I know that insolation will raise the temp, but I thought it was funny].

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
    5. Re:Aging gyros? by SevenHands · · Score: 1

      I'd disagree, of course, as long as one can manage a bit of freezer burn!

  4. No way by Quadraginta · · Score: 3, Informative

    Nonsense. COBE was far more significant. There's much more to science than pretty pictures!

    1. Re:No way by dgatwood · · Score: 5, Interesting

      True, but I would argue that Hubble and the Mars rovers have done far more to promote space science to the masses. In an era where scientific research is often the first thing on the chopping block, the importance of projects like Hubble should not be underestimated.

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    2. Re:No way by Anti_Climax · · Score: 2, Informative
      COBE did help to create This pretty picture.
       
        From the XKCD Store page:

      The graph on the back of the shirt is data from the COBE mission, which looked at the background microwave glow of the universe and found that it fit perfectly with the idea that the universe used to be really hot everywhere. This strongly reinforced the Big Bang theory and was one of the most dramatic examples of an experiment agreeing with a theory in history -- the data points fit perfectly, with error bars too small to draw on the graph. It's one of the most triumphant scientific results in history.
      --
      Even people that believe in pre-destiny look both ways before crossing the street.
    3. Re:No way by googleSky · · Score: 1

      "Pretty pictures!" Is that all you think Hubble has done? Wow. I didn't realize that some Slashdotters were so utterly clueless.

    4. Re:No way by googleSky · · Score: 5, Insightful

      Let me further follow up on this silly comment. While producing its remarkable results, COBE was hardly "far more significant" than Hubble. COBE's measurements confirmed the isotropy or, rather, the extremely low levels of anisotropy of the CMB -- to a high order of confidence. But the CMB was actually observed decades earlier by Penzias and Wilson at Greenbank. WMAP further improved on COBE results.

      Despite Quadraginta's blinkered belief that Hubble produces only "pretty pictures!" Hubble has been crucial in the discovery of the accelerated expansion of the universe, a result that has turned our understanding of the universe into an utter lack of understanding: we now have no idea what comprises 96% of the universe (dark energy and dark matter). This observation apparently vindicated Einstein's lamda, which even Einstein claimed was his biggest blunder. Others, though, now speculate that the accelerated expansion could be a manifestation of temporal pathology.

      Hubble certainly has produced pretty pictures, but this weird fixation that there is somehow a "competition" between scientific instruments has simply got to stop. These missions are designed as complements to further our understanding of the physical universe.

    5. Re:No way by Citizen+of+Earth · · Score: 4, Funny

      COBE did help to create This [deviantart.com] pretty picture.

      What does "devian" mean?

    6. Re:No way by bdeclerc · · Score: 1

      What does "devian" mean?

      Devian : Indigenous to the People's Republic of Devium



      A country renowned for their expertise in facial make-up...

    7. Re:No way by Quadraginta · · Score: 1

      You'll want to share your wisdom with the Royal Swedish Academy of Sciences, then, since they awarded the 2006 Nobel Prize in Physics to Mather and Smoot for work carried out with the COBE satellite.

    8. Re:No way by Anonymous Coward · · Score: 0

      Yes, popularity is like so important these days
      We want hubble cheerleaders and a mascot, too.

      pp0
      q dDDD~
          |'''''''''|

      [The Ugly ASCII Hubble Dog]

      Maybe now those dense masses will appreciate astrology more.

    9. Re:No way by Anonymous Coward · · Score: 0

      Which proves what?

      Oh, right, nothing.

    10. Re:No way by Quadraginta · · Score: 1

      Er...it proves that at least one august body charged with the evaluation of the significance of fundamental physics experiments decided that the results from the COBE experiment were far more significant than anything that's come from Hubble.

      It's an appeal to authority argument, which means it rests on how well you think Nobel Prizes in physics correlate with the importance of the physics. For myself, I'd say the correlation is not as strong as one might like, but it's moderately strong.

    11. Re:No way by Anti_Climax · · Score: 1

      It's a thrash band... She's probably a fan ;)

      --
      Even people that believe in pre-destiny look both ways before crossing the street.
    12. Re:No way by Anonymous Coward · · Score: 0

      But look at the context. COBE was a focused observatory that repeated basically the same measurements across the sky. It had a limited scope and limited potential for further use after completion of its primary mission. Yes, it was a hallmark mission (based on many other observations before it), but it was one long series of measurements. Also, part of the excitement about COBE was it found the CMB to almost a perfect match for some of the more popular predictions of the Big Bang Theory.

      In contrast with COBE's solid one-shot performance, Hubble is gigantic astrononmers multi-tool, which has advanced the study of comets, planets, Kuiper belt objects, stars, nebulae, nova, supernova, star formation, galactic structure, the early universe, etc. It performs a different study pretty much every single day, often multiple in the same day. In the 21 years it's been operating (COBE ran for four), over 6000 papers have been published using Hubble data. The sum of that stacks up pretty heavily against COBE's limited scope.

      So ultimately your argument of one being greater than the other misses the mark because they're so different. And the award was to the guys who crunched the data from COBE, not for COBE itself.

      Also, the Chandra X-ray observatory led to a Nobel prize in 2002. That's before the COBE one was awarded.

      Furthermore, using the Nobel prize committee as an appeal to authority is blatantly fallacious when you consider they gave the peace prize to a hypocrite.

    13. Re:No way by QuickFox · · Score: 1

      Furthermore, using the Nobel prize committee as an appeal to authority is blatantly fallacious when you consider they gave the peace prize to a hypocrite. The selection of the Nobel Peace Prize is made by a different body in a different country, completely unrelated to the body that selects for the scientific Nobel Prizes. I get the impression that their selection criteria are radically different. Those who select for the peace prize seem to use the prize to try to give increased influence to people who they hope will use this increased influence for peace work. Something like that. To me that policy seems terribly self-defeating in the long run. The scientific prizes are slected on academic merit alone, as far as I can tell.

      Not that this gives any clue for comparing the importance of COBE and Hubble. The scientific prizes are awarded on academic merit, not on importance of instrument...
      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
  5. The kind of science we all need by Anonymous Coward · · Score: 2, Insightful

    In my early years in physics I worked on shuttles, and then on environmental cleanups and nu-cu-lar waste disposal. Many times I used Hubble as example of what we could do right in science: so often critics have said that they never see what good could come out of it. Hubble has made that entire line of "reasoning" disappear. SEEING the results, in the visible spectrum, FREELY available... Could we find something similar for this current emphasis in biophysics? C'mon slashdot, let's take science to the masses!

    1. Re:The kind of science we all need by twiddlingbits · · Score: 4, Informative

      Hubble does not "see" the pictures you find published. The data is a series of binary values in different frequencys and intensities depending on what filter is in use and which "camera" (WFC or COS) it came from. The colors are "false" colors created on the ground to match the data values as closely as possible.

    2. Re:The kind of science we all need by QuickFox · · Score: 1

      Sure, but the result are pictures, and those pictures are beautiful and give people a feel for the science. If only other sciences and technologies could do the same!

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
    3. Re:The kind of science we all need by ckaminski · · Score: 2, Insightful

      Just like digital cameras don't produce pictures either...

      Nor celluloid film...

      Even your retinas create images in a similar fashion, a collection of light hitting photo-sensitive receptor sites.

  6. Re:You can't repair the piece of shit that is /. by calebt3 · · Score: 1

    You're not helping. There had only been two trolls before your post.

  7. Advantages of Hubble still worth it? by joshamania · · Score: 3, Interesting

    Are the advantages of having Hubble outside the atmosphere still worth the expense? I'd rather see NASA spending their money on Mars.

    I thought I had heard that new ground-based telescope technology has largely made the benefits of the old Hubble obsolete. Does anyone know anything more specific on that?

    1. Re:Advantages of Hubble still worth it? by Shooter6947 · · Score: 5, Insightful

      Sure, adaptive optics allows ground-based 'scopes to do SOME of the things that only Hubble could previously do. However, anything requiring high-contrast imaging, photometric stability, or spectral uniformity still greatly benefits from Hubble. Given that astronomers request 10 times as much time on Hubble as there actually is, there's still plenty of science that only it can do.

    2. Re:Advantages of Hubble still worth it? by Aardpig · · Score: 3, Informative

      Well, the fact that our atmosphere is opaque to UV? If you want to do UV observations, and in particular UV spectroscopy, then going above the atmosphere is the only way to do it. Nothing on the ground will *ever* be able to observe in the UV.

      Similar considerations apply to the mid- and far-IR -- the Spitzer space telescope can access wavebands that are simply not visible from the ground.

      --
      Tubal-Cain smokes the white owl.
    3. Re:Advantages of Hubble still worth it? by ThreeGigs · · Score: 5, Informative

      Ozone blocks ultraviolet, water vapor absorbs strongly in the infrared, dust particles et al emit in infrared too, causing a huge loss of contrast.

      Sadly, the atmosphere isn't really as transparent as it looks once you get outside the visible spectrum, and that's where 50% (a statistic made up on the spot) of astronomy breakthroughs are.

      Future scopes in space are likely to be infrared (Webb), ultraviolet, radio and x-ray specific. Plus, adaptive optics are still only a band-aid(R) compared to viewing outside the atmosphere.

    4. Re:Advantages of Hubble still worth it? by NixieBunny · · Score: 1

      There is this thing called adaptive optics, which corrects for atmospheric turbulence by bending the secondary mirror in real time with 600 magnetic actuators. However, there is a bit of a problem making it work... the LBT being built by my employer Steward Observatory has had at least two of the 1 meter diameter, 1.6 mm thick secondary mirrors crack before installation (they currently have zero good adaptive secondaries). But when it works, as it has on the MMT, it works quite well.

      --
      The determined Real Programmer can write Fortran programs in any language.
    5. Re:Advantages of Hubble still worth it? by joshamania · · Score: 1

      What about the other orbital telescopes up there already? Chandra and Spitzer already do a lot of the science that Hubble was being used for, considering those platforms...and isn't their one more...does Hubble still make sense?

    6. Re:Advantages of Hubble still worth it? by Anonymous Coward · · Score: 0

      Wait, you start with questioning the cost/benefit ratio of the Hubble telescope, and then proceed to hype up a MANNED MISSION TO MARS??

      *head explodes*

    7. Re:Advantages of Hubble still worth it? by Cedric+Tsui · · Score: 1

      Err. I believe the cost benefit analysis for saving Hubble comes back in the red. I do not have a source for this, but space walks are dangerous and complicated operations and the last time they repaired the Hubble, it almost ended in catastrophe.

      There are a few things that Hubble can do that no other telescope can. However, those things will be done much better by the James Webb Space Telescope to be launched sometime after 2013.

    8. Re:Advantages of Hubble still worth it? by Shooter6947 · · Score: 2

      JWST may be the political successor of Hubble, but it will not replace its capabilities. JWST operates only in the infrared; Hubble's primary contributions are in the visible (and the UV). These spectral coverages are complementary. The launch of JWST (after it finishes hoovering up what's left of the NASA astrophysics budget) will not cause Hubble to become obsolete.

    9. Re:Advantages of Hubble still worth it? by Shooter6947 · · Score: 3, Interesting

      However you may have a point about the cost/benefit ratio. For the price of a shuttle launch to repair Hubble (~$1B), you could just about build and launch a new one on an unmanned rocket. If there were a concerted program to launch a virtually identical 2-meter telescope every 4 years with different instrumentation on it, that program would be better and cheaper than continuing to repair Hubble. However, congressional whims being what they are, such a program would inevitably get cut after its first mission, obviating the savings. Hence NASA has opted to continue to repair and update Hubble instead.

    10. Re:Advantages of Hubble still worth it? by Sibko · · Score: 1

      I'd rather see NASA spending their money on Mars. I'd rahter see NASA spending their money on Venus, the most earth-like and habitable planet in our solar system aside from Earth itself.
    11. Re:Advantages of Hubble still worth it? by QuickFox · · Score: 1

      Head explodes? My god! GP, look what you've done! You've gotten him blood and little pieces of brain all over his keyboard and monitor!

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
    12. Re:Advantages of Hubble still worth it? by syousef · · Score: 1

      50% (a statistic made up on the spot)

      Quick mod him +5:Informative!!!! Oh wait too late. Never mind.

      --
      These posts express my own personal views, not those of my employer
    13. Re:Advantages of Hubble still worth it? by dlevitan · · Score: 1

      Are the advantages of having Hubble outside the atmosphere still worth the expense? I'd rather see NASA spending their money on Mars.

      I thought I had heard that new ground-based telescope technology has largely made the benefits of the old Hubble obsolete. Does anyone know anything more specific on that? If we could reliably do this, you would have heard about it. Adaptive optics (AO) is great, but its primarily useful in infrared, not visible. Lucky Imaging (recently deployed at Palomar) is supposed to correct for this, but from what I understand, requires pretty long exposure times to get enough data. Its useful, but we'll have to see how it develops. AO is definitely a way to help control some of the problems with ground based telescopes, but not all. AO infrared images have about as much resolution as Hubble in visible. Lucky imaging is supposed to have more resolution, but I'm not entirely sure how successful they'll be.
    14. Re:Advantages of Hubble still worth it? by Shakrai · · Score: 1

      I'd rahter see NASA spending their money on Venus, the most earth-like and habitable planet in our solar system aside from Earth itself.

      If by "Earth-like and habitable" you mean an average surface temperature of 480C, an atmosphere consisting of 96.5% CO2 and surface atmospheric pressures 92 times greater then Earth, then yes, Venus is "Earth-like and habitable".

      It's somewhat possible for us to establish manned outposts on Luna and Mars with current technology, assuming the political will to do so existed. Can you really say the same for Venus?

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    15. Re:Advantages of Hubble still worth it? by QuickFox · · Score: 1

      Click the link he provided, it answers the concerns that you raised. There are other concerns that are not answered, but those you raised are really answered, strange as this may seem.

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
    16. Re:Advantages of Hubble still worth it? by Shakrai · · Score: 1

      What in that link disproves my statement that we could establish outposts on Luna and Mars with existing technology but not Venus?

      Do we have "cloud flyers" that could fly around Venus at 50km of altitude? Do we have the technology to terraform the planet in a reasonable amount of time?

      I'm not trying to be a nay-sayer. Just pointing out that in spite of all the advantages (closer to Earth with more launching windows, gravity almost the same as Earth), Venus is probably still out of reach with existing technology. And it's nowhere near "Earth-like" as the GP suggested.

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    17. Re:Advantages of Hubble still worth it? by QuickFox · · Score: 1

      I meant that it addresses the pressure and temperature that you mentioned. I didn't mean that it disproves anything you said, only that it gives some answers. I should have said more clearly what it answered, I realize now that the way I said it was misleading.

      We do have technology for balloons and blimps. Note that people would live inside the buoyant gas and breathe it. But certainly lots of challenges related to this remain unanswered -- as I already said in my post.

      You sound angry or something. Don't be. I just felt that it was an interesting read. I like it when people think outside the boxes of convention. When I read stuff like that I don't demand that every issue be ironed out and solved. It can be an interesting read before they have found solutions to all the problems.

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
    18. Re:Advantages of Hubble still worth it? by darkmeridian · · Score: 1

      Ground-based satelittes have to spin with the Earth. This prevents them from having the super-long exposure times that Hubble can achieve.

      --
      A NYC lawyer blogs. http://www.chuangblog.com/
    19. Re:Advantages of Hubble still worth it? by Shakrai · · Score: 1

      I'm not angry.... don't know what in my post you read as anger. My original reply was because I took exception to the GPs statement that Venus is the most "Earth-like" planet in the solar system. It's nothing of the kind.

      I'd leap at the chance for us to establish outposts or colonies on Venus. I'd probably even volunteer to go. Given the constraints on technology though I just don't see it happening first. Would you agree that with enough funding we could probably establish a foothold on Mars or Luna with existing technology? Can the same be said about Venus?

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    20. Re:Advantages of Hubble still worth it? by mbrother · · Score: 1

      Chandra works in X-rays, Spizter at mid-infrared wavelengths. Hubble does science that they can't, and vice versa. Plus, there is multiwavelength science that can only be done when all three are used together (e.g., studying supernova remnants, quasar spectral energy distributions, etc.).

      --
      Professor of Astronomy, Author of Spider Star & Star Dragon (Tor)
    21. Re:Advantages of Hubble still worth it? by QuickFox · · Score: 1

      Would you agree that with enough funding we could probably establish a foothold on Mars or Luna with existing technology? No, I don't agree. Not with existing technology. New technology will be needed. But I do think that this new technology is within reach. I do think that with sufficient funding we can very likely solve all the inherent problems, although I do think that some of them are quite formidable.

      Maybe that was exactly what you meant and I'm just being more pedantic.

      Can the same be said about Venus? I don't yet have enough information to judge that.

      Before yesterday I found every non-science fiction, seriously intended idea about deploying people on Venus utterly preposterous and ridiculous, or hopelessly ill-informed, based primarily on the fact that you just can't get rid of the heat at the surface, much less while trying to cope with the surface pressure, the corrosiveness, and so on. I'd say that to colonize Venus you'd first need to convince the Universe to change the laws of thermodynamics, and that's just the first step among several.

      Now I'm still feeling the surprise of finding an idea that does sidestep some of the most glaring total impossibilities. At first sight the new solution does sound preposterous too — but is that because of remaining unsolved problems, or is it just because I'm not yet used to the idea, and have not yet thought it through?

      One shouldn't dismiss new ideas during the initial period, while one is still reeling from the surprise. If you do that, you can't accept trips to Mars either, unless you hear about such trips while you're too young to "know" that they are "impossible".

      I can see several huge problems with the notion of blimps floating in the atmosphere of Venus, but I don't know what ideas people have for solving the problems I see. I'm still reeling from the surprise, and during that period I tend to give an idea the benefit of the doubt.

      I see huge problems with Mars too. That doesn't deter me from thinking that human ingenuity may overcome them.
      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
  8. Too bad nobody is interested... by Anonymous Coward · · Score: 0

    ...in one final mission, perhaps with an unmanned robotic/remote controlled plain old cylinder-shaped rocket vehicle, to go up and fetch the Hubble, load it inside the tube (remember the old James Bond movie "You Only Live Twice"), and bring it down safely using parachutes, as cheaply as possible, so the Hubble can then be displayed in the Smithsonian National Air and Space Museum.

    Surely some rich multi-billionaire mofo could cough up the bucks to fund such a mission.

    1. Re:Too bad nobody is interested... by Columcille · · Score: 1

      Since, you know, that money would have no better use than to get a new museum piece... I support funding science, but something like this would not be science, it would just be a tremendous waste of money.

      --
      I love my sig.
  9. After replacing the aging gyros ... by Alain+Williams · · Score: 4, Funny

    NASA will try to get as much positive spin out of Hubble as it can :-)

    1. Re:After replacing the aging gyros ... by RealGrouchy · · Score: 1

      Yeah, like Hubble didn't see that joke coming from a billion miles away...

      - RG>

      --
      Hey pal, this isn't a pleasantforest, so don't waste my time with pleasantries!
  10. Do it to it, buddy by bigdavesmith · · Score: 1

    The telescope could then continue doing science well into the next decade.
    Doing science. Now that's what I'm talking about. You give them space robots some more tools, keep em up there with them gadgets, lookin at the moon and whatnot. That's how progress gets done.
  11. I wanna see Hubble... by Khyber · · Score: 1

    ...get placed in orbit around the moon. I wonder if it would result in better imaging capability or not.

    --
    Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
    1. Re:I wanna see Hubble... by Aqualung812 · · Score: 1
      I doubt it, since the main advantage to Hubble isn't that it is closer to the objects it is viewing, just that it doesn't have the atmo taking away so much. The distances improvement would be VERY small, and actually would be farther away from some objects. It would be like moving it 1/2 of a blade of grass east when you're in LA looking at New York and Japan.

      Also, it would make repair a major bitch...

      --
      Grammer Nazis - I mod you "troll" unless you actually add something on-topic. Yes, I know I have mispellings in my sig.
    2. Re:I wanna see Hubble... by Shakrai · · Score: 1

      I doubt it, since the main advantage to Hubble isn't that it is closer to the objects it is viewing

      Actually a better spot for viewing would be one of the Lagrangian points. A huge portion of the sky is blocked from Hubble's field of view by the Earth. No way around that with an object in low Earth orbit.

      Presumably an object in orbit of Luna would suffer the same drawback. The far side of the moon might be useful for a future RF telescope though -- as it would serve to block a lot of the RF generated by humans.

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
    3. Re:I wanna see Hubble... by CodeShark · · Score: 1

      2,3 and 4. Spread as far apart in geosynchronous space as possible. Linked with as fast a set of communications processors as possible. With as much fuel as possible. So that you can point 3 or 4 of these at the same targets in the universe at the same time. Or point it at targets that are out of visible range of the hubble because of things like planet earth getting in the way.

      Why? You want radio telescopy on a grand scale? How about a radio telescope with a 40,000 km edge to edge diameter? But then, I am not an astronomer, just a tinkerer so this may not make as much sense as I think it would. What think ye?

      --
      ...Open Source isn't the only answer -- but it's almost always a better value than the alternatives...
    4. Re:I wanna see Hubble... by Aqualung812 · · Score: 1
      But, since it is in LEO, it can just wait until that part is in view. LEO orbits earth in like 30 minutes or so? May be a couple hours?

      However, putting it in a lagrangian point would sure be a "put up or shut up" move when it comes to saying that this is the last, last repair mission.

      --
      Grammer Nazis - I mod you "troll" unless you actually add something on-topic. Yes, I know I have mispellings in my sig.
    5. Re:I wanna see Hubble... by Khyber · · Score: 1

      Radio telescopes are nice, but I'd like to see it in the visible spectrum. You guys have fun with all that data, I just want to SEE.

      --
      Still waiting on Serviscope_minor to wake up to fucking reality and realize that Jessica Price isn't going to fuck him.
  12. Lost Skeleton of Cadavera! by Anonymous Coward · · Score: 0

    That reference just made my day. That was exactly what I thought when I first saw the summary. It seems others have taken it to be a reference to Portal, which is good too, but you made me very happy, sir.

  13. How many people wanted to fix it? by heroine · · Score: 0, Troll

    Not sure it was a cry from scientists, legislators, and the public as much as it was a cry from a small number of people with everyone else going along with what they read.

  14. Will it really be the last trip? by xlation · · Score: 4, Interesting

    IIRC we cannot, by treaty, just let the Hubble's orbit decay like Skylab & Mir, we need to do a de-orbit burn and drop it in the Pacific, or some other relatively safe place. The problem was this, is that the Hubble has no rocket engines on board, so we need to send something up there to attach an engine.

    That would be a complicated robotic mission, but there is a further complication... Once enough gyros fail, it will start to tumble. That would make a servicing mission near impossible. (you could no longer just grab it.)

    So once NASA decides that we need to go anyway, why bother to de-orbit it? Servicing Mission 3B was in 2002, if they can get another 6 years out of SM4 that will get them to 2014. If NASA is serious about replacing the shuttle, they should be able to get another manned craft into low-earth orbit by then, even if it is using an off-the-shelf launch system,

    1. Re:Will it really be the last trip? by Iskender · · Score: 4, Informative

      IIRC we cannot, by treaty, just let the Hubble's orbit decay like Skylab & Mir, we need to do a de-orbit burn and drop it in the Pacific, or some other relatively safe place. The problem was this, is that the Hubble has no rocket engines on board, so we need to send something up there to attach an engine.
      From TFA:

      In one additional piece of business, the astronauts will attach a grapple fixture to the bottom of the telescope so that a robot spacecraft could grab it and attach a rocket module in the future. The rocket would then drop the telescope into the ocean.


      They seem to be thinking ahead, almost like it was their job or something. : )
  15. Sure brings by aengblom · · Score: 2, Interesting

    "The Device NASA Is Leaving Behind" into context. (It being the last Slashdot story in the Space section.)

    --


    So close and yet so far from the world's perfect ID number
  16. hue / hew by gumpish · · Score: 1

    hue

    Color or shade of color; tint; dye

    hew

    to complain about

    (in before "there are no editors")

    1. Re:hue / hew by Tejin · · Score: 0
      Sorry mate, but it is in fact hue in this case. Witness:

      "In common law, a hue and cry (Latin, hutesium et clamor) was a process by which bystanders were summoned to assist in the apprehension of a criminal who had been witnessed in the act of committing a felony." en.wikipedia.org/wiki/Hue and cry

      --
      The seekers do no need truth, the seekers do find truth and the finding do be painful
  17. We all know when the end will come for hubble by Cryacin · · Score: 2, Funny

    : "If that wasn't the mother ship, what the hell did we just blow up?"
    : "The hubble telescope."

    --
    Science advances one funeral at a time- Max Planck
  18. AMS? by TrevorB · · Score: 1

    One more Hubble servicing mission... but the 1.5 billion dollar AMS (Alpha Magnetic Spectrometer) won't be launched to ISS because there aren't enough remaining Shuttle launches.

    Hubble's been fantastic and all, but all the furor, angst and money could have been spent on launching an entirely new telescope into space by now.

  19. Mixed feelings by FridayBob · · Score: 4, Interesting

    While I'm glad that the Hubble is going to be repaired, after reading yesterday's article about the Alpha Magnetic Spectrometer (AMS) that looks like it won't get delivered to the ISS due to a lack of available shuttle missions, I'm no longer sure it's the right thing to do. Seeing as the AMS took 500 physicists 12 years to build and cost $1.5 billion, and that it's capable of doing new and amazing science, I think it deserves a chance. The Hubble has already been up their for years and will be replaced in 2013 by the James Webb Space Telescope anyway. The AMS has no replacement; not launching it would be worse than not repairing Hubble.

    1. Re:Mixed feelings by Dr.+Evil · · Score: 2, Interesting

      OMG. 500 Physicists, 12 years of work, 1.5 Billion? I'm outraged! The biggest boondoggle in the history of the ISS could have paid for an extra week of war in Iraq!

    2. Re:Mixed feelings by Anonymous Coward · · Score: 0

      we spend that a week in iraq, what do we get for that investment?

    3. Re:Mixed feelings by moosesocks · · Score: 2, Informative

      To be perfectly fair, the JWST will *not* be a drop-in replacement for the Hubble, as it's going to be primarily geared toward observing the infrared spectrum, whereas the Hubble is capable of observing everything between Ultraviolet and Infrared (visible light obviously being included between the two)

      Although there's indeed a great value of having a dedicated IR scope up there, I think that astronomers would agree that keeping the Hubble in orbit will be a very good thing, not to mention the obvious benefits of having two scopes versus one (on the other hand, if it's cheaper to build another Hubble that indeed does fulfill all of the important roles of the current one, than I agree that NASA should by all means pursue that route)

      --
      -- If you try to fail and succeed, which have you done? - Uli's moose
    4. Re:Mixed feelings by Anonymous Coward · · Score: 0

      So what about the scientific value of the other 12 missions?

    5. Re:Mixed feelings by Anonymous Coward · · Score: 0

      AMS is not entirely no science. It's an expansion upon previous research. A similar detector flew on the Shuttle in the 90's and yielded valuable information, but only for 10 days.

      Also, NASA is still trying to get the AMS manifested (probably more vigorously given the press of the last week), but Congress gave them money for a misssion to Hubble, not to launch the AMS, and the budget approved for them by Congress is essentially a mandate. They're not allowed to simply swap the funds around. Besides, half the Hubble servicing money is already spent on hardware and mission preparation, so to abandon that mission would likewise be a waste and probably insufficient to get AMS to the ISS.

      Lastly, even if AMS does not go up on the Shuttle, I believe there is a still a chance it will be adapted and orbited as an independent satellite.

  20. Why are the gyros failing? by ChrisMaple · · Score: 2, Interesting
    It's been more than 20 years since I was in the inertial navigation business, but my recollection is that there should be no significant wearout mechanism for gyros. Mechanical gyros use air bearings (or possibly magnetic bearings): no contact, no wear. I suppose if they're using laser gyros they'll fail eventually due to problems with impurities or thermal stresses or something.

    Are the control electronics associated with the gyros failing? What gyro technology are they using?

    --
    Contribute to civilization: ari.aynrand.org/donate
    1. Re:Why are the gyros failing? by Anonymous Coward · · Score: 0

      They don't use gyros for inertial navigation, but instead to actually stabilize the telescope, i.e. the gryos have to transfer some momentum to the rest Hubble.

    2. Re:Why are the gyros failing? by MechBill2112 · · Score: 1

      The gyros onboard HST are the most sensitive rate sensors ever created by mankind, giving the observatory 7 milliarc-seconds of stability. The hair-like flex leads are suspended in a gel, and they cannot physically remove all the oxygen from the gel, so the flex leads oxidize. L3 makes them, formally Allied Signal, Bendix, etc.

  21. Part of the ISS? by yuriyg · · Score: 1, Interesting

    This might sound naive, but what about attaching this thing to the ISS? Sure would make maintenance a lot more easier, with all those regular flights and round-the-clock human presence.

    Is there anything fundamentally incompatible with the design of the Hubble and the ISS? (orbit, need to rotate, etc.?)

    1. Re:Part of the ISS? by QuickFox · · Score: 1

      As I understand it from the discussions here and here, it would be impossible with conventional rocketry, and possible but impractical with a solar-powered ion engine. The latter would take three years, during which the telescope would be unusable. That becomes prohibitive when you consider that the ISS orbit is unsuitable for observation, so after the repairs you'd need time to get the telescope back to a useful orbit. By that time the telescope would be too old.

      Several alternatives are considered in those discussions, and none seem to convince those who apparently understand these matters.

      Personally I'm not convinced that the telescope would be entirely unusable during an ion-engine transfer. It should be very limited in where it can point, but usable in those limited directions. And after repair you'd only need to boost it to a higher orbit. That orbit could be energetically quite close to the orbit of the ISS, and thus quickly reached. And such a plan could perhaps dramatically lengthen the lifetime of the telescope.

      But I'm no expert. I may well have overlooked or misunderstood something.

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
  22. I gotta know - what science exactly, does Hubble by AngelofDeath-02 · · Score: 1

    What Science does the space station actually advance, and how is it meaningful to us?
    From what I know of, most of our useful scientific advances from the space program have been because of trying to get out into space. I honestly don't know of a single advance made from actually being out there. We know a bit more about the planets surface, and that there aren't any living sentient beings in our region of space. However, we also know that its hugely impractical to relocate to these planets as well, and that even if we did, we wouldn't be safe from our own sun.

    Knowledge is power and I don't dispute this, but other than what we've gained in making these attempts, have we really practically applied anything we currently know? Or is it really just the practice that benefits us?

    --
    No, I am not an English major. My posts are subject to typos and incorrect grammar. Do not expect perfection.
  23. Invoice by QuickFox · · Score: 3, Funny

    I bet like all repairmen they'll charge ridiculously large travel expenses.

    --
    Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
    1. Re:Invoice by east+coast · · Score: 1

      If it's any indication, the last guy who paid to get a ride out that way paid 20 million.

      --
      Dedicated Cthulhu Cultist since 4523 BC.
  24. Not a waste by Nick+Driver · · Score: 1

    Since, you know, that money would have no better use than to get a new museum piece... I support funding science, but something like this would not be science, it would just be a tremendous waste of money.

    I disagree. If the Hubble could be brought back and put in the Smithsonian, then some child might become inspired by seeing it up close and personal, and choose to pursue science, astronomy or space exploration instead of choosing to grow up to become an advertising marketeer, scam artist or drug dealer.

    1. Re:Not a waste by QuickFox · · Score: 1

      advertising marketeer, scam artist or drug dealer Why are you repeating the same profession three times?
      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
  25. Opaque to UV? by Joce640k · · Score: 1

    Funny, last time I checked the shops were full of special creams to protect people from harmful UV radiation when they go outdoors.

    --
    No sig today...
    1. Re:Opaque to UV? by Shakrai · · Score: 1

      The parent would have been better off saying that it's opaque to UVC. UVA and UVB make it through in varying amounts.

      --
      I want peace on earth and goodwill toward man.
      We are the United States Government! We don't do that sort of thing.
  26. AMS can be saved, just like Hubble. by Shivetya · · Score: 1

    Write your Congressmen, both House and Senate, of the importance to science, prestige for America, and the space program. Feel free to list other concerns you have but give NASA and in particular the AMS high marks so that it stands out. Do not mention the war or the expenditure of the funds on it, that will only get you written off. Instead stay positive.

    Then get your friends to send emails and the like. You can use wikipedia for the links to your own Congressmen. You might try writing into the opinion section of your local paper, again focusing on the positives for us as a country and even as a species (just don't drag the war into it as people will focus on it and your real message will be lost)

    Hubble was saved because people focused on it. The AMS is not nearly known as well but if portrayed in a positive light and put on the same stage as Hubble then congress might just spend all that wasted earmark money on science instead of making monuments to living politicians

    --
    * Winners compare their achievements to their goals, losers compare theirs to that of others.
  27. Still alive! by kagaku · · Score: 2, Funny

    I'm doing science and I'm still alive.
    I feel fantastic and I'm still alive.
    While you're dying I'll be still alive.
    And when you're dead I will be still alive.

    Still alive.

    --
    everyday is another shooter.
  28. A fine example of why English is rubbish by Anonymous Coward · · Score: 0

    Don't you just adore absolutely arbitrary use of words?

  29. It goes without saying by unity100 · · Score: 1

    Hubble is the only major accomplishment that's worth its salt nasa did in the last 20 years. I get amazed even when discussions of scrapping it come up or some people actually foolishly propose it. what hubble brought to human civilization dwarfs even moon landing accomplishment. and im no astronomer.

    1. Re:It goes without saying by Sperbels · · Score: 1

      what hubble brought to human civilization dwarfs even moon landing accomplishment
      Umm, no. This statement is just asinine.
  30. Just like the car talk guys say... by FuzzyDaddy · · Score: 1
    It's always cheaper to fix an old car than to get a new one.

    (He says after getting a new radiator for my 1995 Saturn Station Wagon.)

    --
    It's not wasting time, I'm educating myself.
  31. Team effort by Anonymous Coward · · Score: 0

    Actually, most of those things you list were a team effort from a variety of observatories, and more important, the astrophysicists crunching and interpreting the data. For example, I'm pretty sure the Spitzer had a much greater role to play in verifying accellerated expansion than the Hubble did.

    But Hubble has still had some immutable contributions to astronomy, especially with regards to its ability to resolve fine structures of galaxies and star forming regions, and of the early universe. Its greatest feat has been the Hubble Ultra-deep Field exposure, which shows details from the earliest stages of the universe yet observed.

    And to answer the reply above in this same post, the Nobel prize was given to a group of researchers who used COBE, but that does not place COBE's importance over that of Hubble. COBE was built with a fairly specific set of observations in mind, and the Nobel Prize reflects that work. Hubble was built as a general purpose observatory of oustanding capability, and it continues as such.

    1. Re:Team effort by mbrother · · Score: 1

      Spitzer? No, not at all on that topic. Hubble has been critical in understanding the acclerating expansion since it's the only telescope that can find the high-redshift supernovas to see how the expansion rate has changed over a large timespan.

      It's kind of lame to be arguring about which major result in astronomy is "more signficant" than another. It depends on your own evaluation criteria and interests. COBE did a great job on one very important question. Hubble has done a great job on hundreds of other very important questions. I'd give the win to Hubble, but regard COBE results as a major discovery. It's also to be remembered that Nobel prizes have their own biases and one of them is that they are only for discoveries.

      --
      Professor of Astronomy, Author of Spider Star & Star Dragon (Tor)
  32. Don't forget STIS.... by happyjak · · Score: 1

    Full disclosure -- I work for NASA, on HST. Servicing Mission 4 is going to be pretty busy: In addition to the three things mentioned in the summary (installing COS and WFC3, and repairing ACS), we're also going to be repairing STIS, replacing some thermal blankets, installing new batteries, etc. It's going to be a busy 5 days up there. As for some of the other comments on here: John Mather (the PI for COBE) is a friend of mine, and even he wouldn't claim that COBE did better science than Hubble. They're different things, and both have done fantastic science. Further, I would point out that NASA has had a vast array of scientific successes, including the rovers on Mars, Deep Impact, the Spitzer Space Telescope, Chandra, etc. etc. Just because the media gets more interested when something goes "boom"... sheesh. Oh, and those of you inclined to give advice to NASA about how to engineer... Talk to me after you've put a telescope in space (no, seriously, after you've done that, I want to talk to you!)

    1. Re:Don't forget STIS.... by QuickFox · · Score: 1

      Thanks for the info! But that's a lot of TLAs and FLAs you have there. At least for me (and I bet I'm not alone) it would be far easier to remember the STIS if I had some inkling as to what it is. Or maybe I do know already, but need a reminder.

      And what's a PI? Is it because English isn't my first language that I don't know what a PI is?

      I don't understand COS or WFC3 either, but since you said they are in the summary, I'll trust that reading the summary gives me the same information.

      Checking both your post and the summary I do understand that the ACS is the Advanced Camera for Surveys. Ha, I did understand one! I bet you didn't expect that!

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
    2. Re:Don't forget STIS.... by mbrother · · Score: 1

      STIS = Space Telescope Imaging Spectrograph
      PI is principal investigator
      COS is Cosmic Origins Spectrograph
      WFC3 is Wide Field Camera 3

      --
      Professor of Astronomy, Author of Spider Star & Star Dragon (Tor)
    3. Re:Don't forget STIS.... by QuickFox · · Score: 1

      Thanks!

      --
      Terrorists can't threaten a country's freedom and democracy. Only lawmakers and voters can do that.
  33. Great News! by Anonymous Coward · · Score: 0

    Hurra! for the venerable Hubble. There's no replacement yet so it's only wise to keep it. In ten years there will be a replacement. Plans have existed since 10 years ago at NASA.

  34. Sentimentality by pyrr · · Score: 1
    I guess I do tend to be a bit sentimental when it comes to projects that pique the general public's interest in science, which the HST did. It's good for research, but on another level, even though most people have no idea how it works and the implications of what they're seeing, the images excite people, which is a PR coup for NASA and the fields of astronomy and cosmology. PR is nearly as important as actual research, since research is costly and someone needs to pay for it. HST keeps NASA in the headlines (this is the second round of publicity since the announcement that they were going to abandon it in space to burn).

    So let's face it: COBE is fantastic science, but it means absolutely nothing to most people. They don't know what it does, they don't understand or care about the science behind it, and probably assume it's just a waste of money. HST is fantastic science, but people are dazzled by pretty pictures and can catch a glimpse into just how it's enabling scientists to do fantastic things. It seizes the imagination, and NASA can only achieve what the public's imagination is willing to fund (to borrow a phrase from Jack Black's funny anti-piracy PSA, "No money, no rocket sauce...").

    I'd like to see the HST recovered somehow and put on display. Sure, that'd be expensive (and may be impractical to bring back down even if a replacement was deployed on the same mission), but it's an icon that panders to the public interest. That's worth every penny IMHO when the budget for space exploration is facing the ax, even if it's less-than-pragmatic from a purely scientific point of view.