Slashdot Mirror


Funding Approved for Pluto/Kuiper Probe

azpenguin writes "While we discuss the acheivements of the now-silent Pioneer 10, Congress has apporved funding for the "New Horizons" mission to send a probe to Pluto and the Kuiper Belt. Space.com has the story here. NASA had actually fought the idea, but Congress approved the money anyway. Wonder if in 12 years (when the probe is supposed to reach Pluto) the public will be as fascinated with the pictures coming back as much as with the Pioneer and Voyager spacecraft." In related news, dalewj writes "Seems the team at JPL will discontinue operations on the Galileo Space probe to Jupiter after extended the mission three times. Galileo has been in space since 1989 and has some amazing findings and pictures available on the JPL website. Truly NASA and JPL's best effort to date."

38 of 224 comments (clear)

  1. Did I Read That Right by jade42 · · Score: 5, Funny

    Did Congress have to force money on NASA? It must be the last sign. I'm going to the bomb shelter.

    --

    Brought to you by the Artificial Idea Factory.
    1. Re:Did I Read That Right by hdparm · · Score: 4, Insightful
      NASA had argued it was not time to go to the distant, tiny world, but members of the planet science community felt it is important to go soon, while Pluto is favorably positioned and before it enters an even deeper freeze in its long, elongated orbit.

      That's from the article. No mentioning on NASA's web site yet.

      In the light of recent Shuttle disaster, NASA is perhaps more keen on getting money to improve safety on Shuttle missions. Just guessing...

  2. Or... by Max+Romantschuk · · Score: 3, Insightful

    Wonder if in 12 years (when the probe is supposed to reach Pluto) the public will be as fascinated with the pictures coming back as much as with the Pioneer and Voyager spacecraft."

    Then again, the public might already be bored with the pics from the probe sent to Pluto in 10 years, with a vastly superior propulsion system which gets it there in one year ;)

    --
    .: Max Romantschuk :: http://max.romantschuk.fi/
  3. This is good news by ODD97 · · Score: 5, Interesting

    Although I certainly won't have first post (having broken the unwritten "don't read the article first" rule), I would like to state that this seems like a good idea to me. I hope they put communications systems in it that will work for another 30 years, as a gift to the future $people_like_me that weren't alive while Pioneer 10 completed its stated mission, yet enjoyed reading about the communications with the spacecraft.
    I don't understand the line "Though NASA fought the concept, Congress wrote the money into the space agency's 2003 budget" however. Can someone explain this?

    --
    The emperor is naked.
    1. Re:This is good news by anubi · · Score: 5, Interesting
      When you are looking at something as incredibly complex as a space flight - 500 million sure isn't much.. over here in Southern California, USA, it is not surprising to see something like a high class home go for something like that.

      I understand NASA was fighting the concept because they felt the money would be better spent on shuttle studies and Mars activity. Not that they did not want the money, they just did not want to earmark it onto a mission to Pluto.

      Consider though the design and launch of such a thing will train another group of engineers in the art of spacecraft design. There are still many of us, now in our 50's and 60's that originally designed a lot of the missions when they were popular in the late 70's, but we are aging. We won't be around forever. And, due to budget cutbacks, a lot of us that have designed spacefaring circuitry are no longer in the industry. As I type this, I pulled a couple of old references I had, reviewing just for the heck of it an Energy Detector design for studying the Van Allen belts and the multiplexer design for the Explorer VII spacecraft launched in the 60's.

      But not many of us lived through that heyday. If a new cadre of engineers are not trained on an unmanned exploratory mission, they get to train on a manned one. I would kinda like them to train and hone their skills on something like this. Back in the old days, we had very little to build our stuff with.. most of it was pre-integrated circuit... like we made them with individual transistors. And we were very concerned with how the transistors degraded with respect to radiation dosages - as nearly all circuits were linear. Today we have much better parts - lower power too- but there are other problems involved that the later parts today are far more sensitive to radiation than those big clunky ones we used. Even before that, our vacuum tubes were immune, for all practical purposes, to EMP - such as static discharges or , God forbid - nuclear artifact. I still use a vacuum-tube oscilloscope when I repair vacuum-tube guitar amps for friends because its front end is immune to the several hundred volt potentials I encounter on the plates of the vacuum tubes.

      I know we just about could tell you how many electrons were in the battery, and we had to make such miserly usage of them. You would probably be surprised at all the tricks those guys went through to conserve every last electron of the flow of current.

      Even our early receivers are works of art. Cryogenic tuners. By building resonators out of superconductors, we could get the "Q" sensitivity high enough to still see our birds as they transmitted on miniscule amounts of energy. The trick was in integration and probability analyses. Stuff like that takes time to learn. And it just about has to be hands-on too. Kinda like learning to walk. You fall a few times.. ( or you set a few rockets back on the ground a few feet from the launch point, launch things into useless trajectories, or launch things that don't work). The phrase that went around during that time was "launching a Maytag"... because the satellites of the day were about the size of a washing machine, and were just about as useful as one if they did not fulfill their intended function.

      --
      "Prove all things; hold fast that which is good." [KJV: I Thessalonians 5:21]

    2. Re:This is good news by AlecC · · Score: 4, Insightful

      I agree with you. While I want, and will support if I can, manned space flight, I think that the unmanned deep space probes are a second strand which actully delivers more value for money. We need to keep that second strand alive. And $300m expected total cost of the mission ($504m cap) is tiny compared to the spending on Shuttle/ISS.

      Apart from anything else, the thinking about designes that *have* to work for 12 years and that you *can't* fix is, IMO, most healthy for NASA. Of course the jury is still out on Columbia, but if it turns out to be tile damage, that shuttle was doomed from liftoff: they had no way of fixing damaged tiles in orbit. NASA has got into the way of thinking that any componen only has to last one flight (Shuttle) or till the next resupply mission (ISS). The rest of the world doesn't work like that: woule you accept a car that needed new tires, an engine overhaul, and a massive safety check after each tankfull of fuel? The rest of the world works either on built to last the lifetime of the object, or at leas a long working life.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    3. Re:This is good news by benzapp · · Score: 3, Informative

      500 million sure isn't much.. over here in Southern California, USA, it is not surprising to see something like a high class home go for something like that.

      I just wanted to point out that figure is HIGHLY innacurate. I seriously doubt there are any private homes in the entire state of California which go for 10% of that value. $500 million is a lot of money.

      As an example, AOL Time Warner are building a fairly large mixed use development by Columbus Circle in Manhattan. This is a HIGHLY desirable area. The complex has two 55 story towers. As you can see from this story, the entire cost of this building is $1.7 billion, a little more than 3 times the value of this house of which you speak.

      Even in Manhattan, the most expensive real estate market in the nation, I have never seen any residential property close to $500 million, unless you are referring to a while high rise. A full floor, 20,000 square foot condo on 5th avenue accross from central park might cost $50 million, maybe more. But not much.

      Some oversized mansions from another age might fetch $100 million, but they are rarely on the market.

      Anyway, just wanted to make that correction while the coffee has me spirited.

      --
      I don't read or respond to AC posts
  4. Budgets... by Anonymous+MadCoe · · Score: 5, Interesting

    What really strikes me is the money needed to do this...

    Total mission under $504 Mil.

    That really isn't bad, there are F1 teams that spend that type of money in one season, and most F1 teams will spend that type of money in two seasons.

    You really can't fight any war for that kind of money.

    Compared to other things this is quite cheap, if only more people would realise that the prices of space exploration aren't that bad...

    1. Re:Budgets... by $$$$$exyGal · · Score: 3, Insightful
      Now you've done it. Never say that hundreds of millions of dollars is not very much money. Regardless of the context, you'll start a flame war.

      But $504 Million dollars is a lot of money! I could brush everyone's teeth in America with that money! Twice!

      --sex

      --
      Very popular slashdot journal for adul
  5. Look out for Greenpeace and their ilk... by de+la+mettrie · · Score: 4, Insightful

    Unfortunately, the problems haven't even started yet for this mission.

    Pretty much anything going to the outer system must have a radiothermoisotopic battery aboard, which powers the craft by using the warmth of decaying radioactive isotopes. It's too dark for solar cells out there.
    And to get out there, probes must use slingshot trajectories around inner system planets, usually including Earth. It is conceivable, if highly improbable, that a navigation error (insert unit conversion joke) would cause the probe to impact Earth instead of passing it by.

    In sum, be prepared for a repeat of the Cassini craze.

    1. Re:Look out for Greenpeace and their ilk... by g4dget · · Score: 3, Insightful

      At issue is not whether RTGs can be made safe in principle--they can. But after the spectacular failures of NASA over the last couple of decades, as well as getting more insight into the kinds of stupid safety and engineering decisions NASA and their contractors seem to be making, I am not convinced that NASA can put together a reasonably safe RTG. A scenario where the probe blows up some time during launch and a poorly designed RTG just vaporizes seems quite possible given NASA's other failures. I hope NASA's designs will be very carefully reviewed and audited by outsiders because this is a matter that affects everybody.

    2. Re:Look out for Greenpeace and their ilk... by Tackhead · · Score: 3, Insightful
      > Unfortunately, due to the Columbia disaster, they will have even more ammunition. Obviously, Columbia and the Pluto-Rocket (Plutocket ;-)) wouldn't have the same types of probabilities of hitting a populated area, but that doesn't matter to the general public.

      RANT

      FUCK Greenpeace.

      During the 50s and 60s - the era of atmospheric nuclear testing - we dumped 3300 KILOGRAMS of plutonium.

      And didn't just disperse this 3300 kilos of Pu by means of Skylabbing or Columbi-izing a few hundred space probes' worth of nicely-encapsulated RTGs, we dispersed it all by vaporizing it with giant-azz atomic bombs.

      If there were any risk to public health posed by the (unlikely) re-entry of a failed space probe and the (even more unlikely) disintegration of a few pounds of Pu in an RTG on re-entry, we'd already be dead, hundreds of times over, because we've already had the worst-case scenario played out, hundreds of times over.

      > but that doesn't matter to the general public.

      Yeah, you're right, "that doesn't matter to the general public". Scientific illiteracy among the general public is the subject for another rant, another day.

      While I think the Shuttle's a waste of time and money, I lament the end of manned space exploration, because when I was growing up in public school, I could at least dream of a day when I could board a rocketship and get away from these morons, forever.

      End rant.

  6. Plans for a new Star Trek are already underway... by MrFreshly · · Score: 3, Funny

    Featuring a long lost outer solar system probe calling itself "Ne zon"...Due to budget cut backs arising from failing public interests, this film will be funded by automobile company "Nissan" in exchange for exclusive rights of the Star Trek logo which will replace the Nissan logos on all 2005+ vehicles.

    well...It couldn't be any worse than Star Trek V.

  7. Nasa's revenge by garbs · · Score: 4, Funny

    Nasa's revenge for getting funding forced for the mission.

    They'll crash the probe into the planet before getting pictures.

    Hmmm, maybe there is some sorta secret Nasa installation on Pluto, maybe that's why Nasa doesn't want the funding for the mission.

  8. This is what NASA should be about by eclectro · · Score: 3, Insightful


    Going places where we have not been before. It makes more sense (and is more cost effective) than man marking time in the space station.

    The have to do this mission soon while Pluto is in the "warm" part of of its' orbit.

    --
    Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
  9. AOL Poll by Anonymous Coward · · Score: 5, Interesting

    A poll I was just reading on AOL. Remember this is voted on by AOL members. The results might surprise you.

    Should manned flights into space be halted?

    88% No, its our duty to explore space 2,152
    12% Yes, the risk of loss of life is too great 285
    Total votes: 2,437

    Should the funding Nasa gets (currently $14bn per year) be increased?

    82% Yes, the benefits space exploration bring are massive 1,964
    18% No, far too much money is spent for too little benefit 445
    Total votes: 2,409

    NOTE: Poll results are not scientific and reflect the opinions of only those users who chose to participate.

  10. And Project Prometheus... by $$$$$exyGal · · Score: 4, Interesting
    Bush quietly signed an omnibus bill last week, SPACE.com has learned.

    That, and Bush talked about Project Prometheus in his State of the Union Address. It seems like Bush wants to be remembered for something more than just Iraq.

    --sex

    --
    Very popular slashdot journal for adul
    1. Re:And Project Prometheus... by Phroggy · · Score: 3, Insightful

      It seems like Bush wants to be remembered for something more than just Iraq.

      We've forgotten about Afghanistan already?

      --
      $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
      $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
  11. Re:We dont' need a CHERYNOBL in space! by meringuoid · · Score: 5, Informative
    This is not a nuclear reactor. It's a radioisotope thermal generator. No chain reaction is taking place; all that happens is that power is derived from the temperature difference between the radioactive core and space.

    Because we're not running a nuclear reactor, we don't need any fancy machinery around the radioactive core, and so it can be embedded in extremely tough materials. This stuff makes a black-box recorder look flimsy. The worst damage the plutonium core could do to someone if the rocket exploded on launch would be to land on their head.

    Furthermore, plutonium is not the deadliest substance known. While a dangerous alpha-emitter if ingested, and an undeniably toxic heavy-metal, there are far more lethal substances. That honour AFAIK goes to VX nerve gas.

    --
    Real Daleks don't climb stairs - they level the building.
  12. Sounds political to me by vandan · · Score: 3, Insightful

    What do politicians care about exploring Pluto?
    This is just another superiority assertion by the US government. The fact that NASA was against the mission shows how much the government cares about the opinions of those who will be actually performing the mission.
    WTF are we going to find on Pluto? How about that moon that may have a liquid ocean beneath it's surface? (can't remember it's name) It's closer, it will cost lest and happen faster. There's far more potential of finding something interesting.

    1. Re:Sounds political to me by de+la+mettrie · · Score: 4, Informative

      What do politicians care about exploring Pluto? This is just another superiority assertion by the US government.

      Maybe. But it makes sense scientifically (look at the story for the why of it), and what is life but a series of contests? If not for the ideological dick-waving contest in the 60s, there would have been no Apollo.

      How about that moon that may have a liquid ocean beneath it's surface?

      You are correct that landing a probe on Europa (insert ominous Kubrick film warning) would be desirable. However, that's several more levels of technical complexity. You need to deploy a lander on the surface (no atmosphere = reaction engines = fuel = heavy = cost), then penetrating a kilometer-thick ice crust (power = radiothermic generator = heavy, also evil), then deploy an autonomous (the comm delay is measured in hours) microsubmarine equipped with all the instruments usually found in an entire university laboratory. Which in turn require bandwidth. And more power. And very good control software.

      In short, it's probably doable (what isn't?), but it would cost orders of magnitude more than the Pluto/Kuiper probe.

  13. Re:We dont' need a CHERYNOBL in space! by eclectro · · Score: 4, Informative

    If you study the engineering behind the radiation sources that the spacecraft use you would see that the darkest of scenarios have been accounted for. Even if the launch vehicle were to explode high in the atmosphere, nothing would happen to the power supply.

    --
    Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
  14. Re:We dont' need a CHERYNOBL in space! by de+la+mettrie · · Score: 3, Informative

    This mission should be shut down through peaceful protests before we all end up glowing green.

    This concern is understandable, but uninformed. Refer to this page for a technical explanation of the problem and its solution. There is also a wealth of information here.

    I, personally, am more concerned about nuclear-powered Cold War-era spy satellites still orbiting Earth than I am about a 21th-century-technology vehicle to be launched far, far away.

  15. Re:We dont' need a CHERYNOBL in space! by ColaMan · · Score: 3, Informative

    Hello , troll :-)

    I was going to go into a long-winded rebuttal of your arguments, but then just did a quick search and copied and pasted the results here.
    (And I would have thought that a "CHERNOBYL in space!" would have been the best place to have one, seeing as there's nobody there.)

    Seeya!

    "The ceramic-form plutonium fuel is heat resistant, thus making it more difficult to be vaporized in case of fire or reentry environmental exposure. The fuel is also very insoluble. It has a low chemical reactivity and breaks in large pieces, not small parts that can be inhaled or ingested. Unlike in nuclear accidents, RTGs cannot explode because no fusion or fission processes are occurring. Hence, the acute radiation sickness associated with nuclear explosions wont be witnessed in an RTG accident."

    --

    You are in a twisty maze of processor lines, all alike.
    There is a lot of hype here.
  16. Glowing in the dark by Anonymous Coward · · Score: 4, Funny
    So that's why all the little green man are green!

    Oh the horror: nuclear atoms in space! Probably those nasty hadron-based ones to boot! The entire space can be polluted forever!

    This is as serious as those huge deadly pools of dihydrogen monoxide!

    We must act now! Help save space! No muclear atoms in space!

  17. Pluto not exciting...? by Anonymous Coward · · Score: 5, Interesting

    Take a look at what Voyager 2 found out about Triton, which it only passed by default.

    Pluto is very contrasty, it would be good to find out why that is, too.

  18. The reason to visit pluto.. by Anonymous Coward · · Score: 4, Informative

    Apparently the idea of the mission is not just ot go where no man has gone before , but

    1) Find out about the planet since telescopic pictures are not good enuff..

    2)Look out from the near-zero atmosphere of pluto out into space, unhindered but particles of the solar system

    Some links here and here about these..... (Rudimentary googling, I am no expert)

  19. Re:12 years? by de+la+mettrie · · Score: 4, Insightful

    Personally, I'd rather see more money spent on human spaceflight, such as the necessary refitting/redesigning of the shuttles. Probes are great, but Pluto just isn't that exciting to me.

    You need to distinguish between your objectives. Human spaceflight serves no immediate purpose. It is a long-term investment for the day where we have the resources and technology to travel to other stars and colonize the galaxy. But in the here and now, it's entertainment: money spent with no productive use. (And better spent, if I may add this, than on automobile races, or presidential campaigns, or certain wars, or any other form of TV entertainment).

    The Pluto probe, on the other hand, is science, pure and simple. It's not meant to be exciting, except for scientifically minded people. I won't go on about the reasons for science...

  20. The real reason... by watzinaneihm · · Score: 3, Informative

    It seems is not to go where no man has gone before but

    1) To get proper pictures of pluto (it seems telescopes are not good enuff
    and 2) to get a view of outer space unhindered by the space dust of the solar system ....
    Some links
    here and here

    --
    .ACMD setaloiv siht gnidaeR
  21. Re:We dont' need a CHERYNOBL in space! by FTL · · Score: 5, Interesting
    > Furthermore, plutonium is not the deadliest substance known. While a dangerous alpha-emitter if ingested, and an undeniably toxic heavy-metal, there are far more lethal substances. That honour AFAIK goes to VX nerve gas.

    No need to compare plutonium with nerve gas. A better comparison would be caffeine. Yup, caffeine is more deadly than plutonium.

    Ralph Nader made the claim that plutonium was the most toxic substance known. As the page linked to above says, "Dr. Bernard Cohen, went so far as to volunteer to eat as much plutonium as Ralph Nader would caffeine in an attempt to demonstrate the folly of the severe toxicity claims. Mr. Nader refused the challenge."

    --
    Slashdot monitor for your Mozilla sidebar or Active Desktop.
  22. RTGs by 0123456 · · Score: 3, Insightful

    Not to mention that we've already had an RTG hit the atmosphere at 25,000 mph when the Apollo 13 LEM re-entered, resulting in millions of deaths and global radioactive contamination. Oh sorry, I forgot, it didn't, did it?

  23. APL by Merk00 · · Score: 3, Informative
    For those who think NASA is no longer up to the task of building a deep space probe, they should be happy to know that New Horizons is being designed, built, and run by the Johns Hopkins University Applied Physics Laboratory. APL has a fifty year history of building space craft with exactly one catastrophic failure. New Horizons happens to be the only space craft going to the outer planets that has not been built by NASA.


    Besides the funding issue, the other main problem with New Horizons is the fact that neither of the two launch platforms (Titan 4, Atlas 5) have been certified. They both, however, did launch successfully last fall.

  24. Very exciting Re:12 years? by dreamchaser · · Score: 4, Insightful

    Pluto and other Kuiper belt objects are made out of the stuff that the entire Solar System was formed of. Personally, I find the 'archaeology' of our home star system to be quite interesting, and this could indeed turn up some exciting results.

    If we have learned anything from past probes, it's that we'll always learn something we never expected. That prospect is not exciting?

    The eternal quest for knowledge and to understand our history is one of the things that makes us what we are.

  25. A Theory by NetGyver · · Score: 3, Interesting

    It strikes me kind of odd that NASA fought congress about the Pluto/Kuiper Probe. Science is science, space is space, Their giving NASA the money, what's the problem?

    The only conclusion i can come up with is that
    NASA wanted money for something else. That and perhaps congress wanted to get a signal to NASA. "Hey NASA, try building something that'll last for a while, something that you don't have to strip and rebuild every time. It'll give you practice, and with that practice you can put that experience into making better, more reliable shuttles."

    I read that Bush signed off on nuclear engines a bit ago, basically paving the way for a missle defense system or some such. (memory's sketchy, but i believe that's the case) I'm surprised that NASA wouldn't try to develop those engines and incorperate them into the pluto probe. It'd make the journey faster and it'd be a good way to test-drive them.

    In any case, NASA needs a project like this. No doubt, the pioneer 10 misson was very exciting to see. Old tech still kicking and doing it's job way longer then it was expected to. That tells me that NASA really knew how to build things that l-a-s-t back in the day.

    There's hardly any info on Pluto to begin with, and the only pictures we have are fuzzy distant images or artists' conceptions. I'd really like to see actual pictures of pluto up-close-and-personal myself.

    All in all, if NASA works on this hard, and there's no hangups, this probe should last a good long time.

    --
    A Penny for my thoughts? Here's my two cents. I got ripped off!
  26. Space stories bring out the idiot armchair experts by ediron2 · · Score: 4, Informative
    OMFG!

    There needs to be a mod for nonexpert-blowing-posteriorized-smoke!

    Having seen the goop that was modded way up as I scanned this, I feel compelled to reply to several messages at once:

    Natron 2.0: Why do we need to send one all the way to Pluto? Is it that much of a concern to us? We know it is a barren icy wasteland, what more do we need?
    Change that to "we suspect..." and please read/internalize a quote from Werner Von Braun: "Basic research is what I'm doing when I don't know what I'm doing." Go grab a copy of Heinlein's remarks on receiving heart surgery that was a byproduct of the space age. Research incidental discoveries of every planetary fly-by we've done (every one taught us something noteworthy). Try to find the tenuous links between exploration and discoveries. And stop spouting off opinions with the wrong verb.
    westyvw: That aside, I hate space exploration. I want our problems solved first. Why go out there when we are so busy trying to kill ourselves here? I do not understand the point of exploring space at all, its such a waste of money, time, and resources. I am a geek, and that makes me realize the folly all the more. Until we develop the tech to do it right, Blow it off.
    (I deleted an extensive flame, questioning westyvw's parentage and marvelling at his ability to exist without the brains normally needed for autonomic activity)

    If I'm not mistaken, there aren't a lot of Al Qaeda space launches. In fact, I see a pretty strong link between hateful regimes and the utter lack of money spent on basic research in any humanitarian or scientific field. A lot has been learned in pursuit of warlike activities, admittedly, but just because we can't bend these backwaters' worldthink to our enlightened ways, doesn't mean we should sit around and wait for them to agree with us before we continue advancing.

    Still, by your logic, I'd at least prioritize. TV, Brittney Spears, novels, the arts, all sports, all cuisine and restaurants, and a few dozen other pursuits are a greater waste of time than scientific research. Live an ascetic life and then come back telling me that the money can be better spent elsewhere. Oh, and your 'net connection... no, make that anything electronic you own... are all forfeit unless needed in a specific mission to combat death and despotism worldwide.

    I hope the above paragraph is the stupidest, scariest thing you've ever read. Your belief has an underlying kernel of truth that can best be laid bare by just thinking of the absurdity of self-denial until everyone else in the world stops being so wrong-headed. Like communism, it's a nobel (a freudian typo?... I meant noble) idea that so far fails in every implementation.

    Developing the 'tech to do it right' without practice is impossible and absurd. Heck, even in modern times, new boat designs have sunk fresh out of the drydock. We explore, we learn, and we stretch into the most unfamiliar areas first because they sometimes reveal deeper questions we didn't even know we should ask. Also we spend years dissecting the failures for lessons and improvements.

    Who the FSCK modded this up (as insightful) to a 5??

    --------

    In a followup, thasmudyan suggests we skip the unmanned cheap exploration and instead set up a mars colony, then contradicts him/herself by suggesting that the space station is worthless in paragraph one and then suggesting that we set up a probe assembly and launch point on the moon. The space station has a shallower gravity well and a more forgiving landing/linkup point than the moon. In other words, it is an attempt to build a staging point for space research. That having been said, if it costs thousands per pound just for fuel to get away from the earth (and about half as much for fuel to land on the moon and relaunch it), how inexpensive will it be to build a semiconductor fab, ship pig-iron, build a machinist shop, have a full suite of materials testing and QA devices, etc etc etc lofted into space? For a long time to come, the most we can hope for is reusability and assembling things prebuilt and tested down here where everything's available and shipping costs are 1e5 cheaper.

    As for thasmudyan's belief that there's potentially a conspiracy to keep space travel expensive, I find all the kennedy-assassination theories more plausible. The cost of escaping earth's gravity is so high, you can pay an engineer for ten years and spend less than lofting him into space. There isn't a techie alive that wouldn't love to see those numbers brought down to a level that makes a week in space affordable. It matters to most of us much more than mere money ever could. Getting thousands of geeks to remain silent about ways to drop those costs would be impossible. Space travel remains expensive not out of a conspiracy, but simply because it is that hard, that iffy, that expensive.

    If you don't believe me, you don't understand the technical extremes we're talking about here. Check again the ongoing postmortem of Columbia's failed reentry, and imagine building any device (no matter how simple) that performs well under these extremes of heat and cold. If it seemed easy, find any 1 thing that performs well both immersed in liquid nitrogen and exposed to a blowtorch. Last of all, imagine building something complex enough to support life for days and still withstand those two thermal extremes, plus a thousand other issues like extreme acceleration forces, radiation, hard vacuum, repeated hot/cold cycling for anything going in/out of unfiltered sunlight, etc., etc., etc. This complexity is why we have the phrase "It isn't rocket science."

    -----

    Thankfully, the anti-nuke protest was modded down low enough I only saw responses. Hospitals and highway departments have nastier stuff than the 'nuclear batteries' used to power probes. If I were Roblimo, anyone saying 'chernyobl in space' without a new argument would immediately have all karma stripped. If I were king, they'd get flogged.

  27. Re:Why oh why? Isnt the Space Station more importa by DemiKnute · · Score: 4, Insightful

    That aside, I hate space exploration. I want our problems solved first.

    Yeah, because nothing useful
    has ever come
    from space research. Jesus man, science for the sake of science is what got our civilization to the advanced state is in today. You don't know the impact space technology has had on your and my life.

    Until we develop the tech to do it right, Blow it off.

    Yeah, Nasa oughta just sit on their asses until one day the one true idea strikes them and they figure out how to do it right. This is how they figure out how to do it.

    --
    .
  28. Why would NASA fight this? by slugfro · · Score: 3, Insightful
    I understand NASA was fighting the concept because they felt the money would be better spent on shuttle studies and Mars activity. Not that they did not want the money, they just did not want to earmark it onto a mission to Pluto.
    Good point and I would like to expand a little more. Right now NASA is very concerned with public image. If the public and government views NASA as beneficial then funding will continue to come. Likewise, if NASA is seen as wasting money then future budgets may get cut.

    That being said, NASA would much rather spend this money on something that will show direct results quickly. The Pluto mission will not have any results until 2015 when the probe finally reaches the planet. I'm sure that scientifically NASA doesn't mind going forward with a Pluto mission but from a budget standpoint they would rather have used the money for something else.
    --

    -- Find the Truth...
  29. Re:You needn't worry about that... by jafac · · Score: 3, Informative

    Even so, the chances of the generator vaporizing over a city are zero.

    1. Launch vehicles are destroyed by remote control if they stray outside of a mathematically-defined "cone" around their planned flight-path. This is always going to be at least several hundred miles away from any sizable population.

    2. There's no launch vehicle destruction scenario that is anywhere near violent enough to damage an RTG casing enough to release radioactivity. Possibly striking the ground at thousands of miles per hour would do it - but no launch vehicle travels at that speed at any altitude anywhere near the ground. They get up pretty high before they accellerate to that speed, and if they turn around and point the wrong direction (down) for any reason, they're destroyed - no rocket=no thrust, no thrust=no high velocity impact. The casings for these things are tested in impact tests with rocket sleds slamming into concrete walls at hundreds, even thousands of miles per hour, and they survive intact.

    --

    These are my friends, See how they glisten. See this one shine, how he smiles in the light.