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Back to the Moon

starexplorer2001 writes "Space.com is reporting that NASA's planned trip back to the Moon isn't without a significant amount of science and technological innovation. Simply 'sponging off Apollo' won't do it. Among the issues: safer human spaceflight, lunar ice, sustainability, robotic scouting missions and more. This won't be easy."

32 of 312 comments (clear)

  1. Say what? by Anonymous+Crowhead · · Score: 5, Funny

    We can't just use 60s technology to get there? I'm shocked!

    1. Re:Say what? by Tackhead · · Score: 3, Funny
      > We can't just use 60s technology to get there? I'm shocked!

      60s technology you want, 60s technology you shall get!

      You're going to the moon, Alice!
      (POW! Right in the kisser!) Hamana-hamana-hamana-hamana...

    2. Re:Say what? by Rei · · Score: 4, Informative

      Well... the thing is, yes, technology has advanced. It hasn't advanced by the leaps and bounds that we would like it to have advanced by, however, and that is the crux of the problem. The Apollo program cost $135B in modern dollars. Even if we consider the overall effect of technology advancements to have doubled our access to space for the same dollar, the concept of a lunar base will require at least double the landing and liftoff payload (in addition to regular trips). Probably much more. It'll take serious money.

      The public tolerates out of control spending on wars because the rhetoric is so heated on it - it's either an abomination or essential to the survival of our way of life, depending on which side you listen to. The level of discourse for space missions just isn't that extreme, and so people look a lot closer at the financial aspect. Apollo-level funding just isn't politically realistic. That's why they're stretching this out over the long run. The longer it takes, the less blatant it is that we're spending as much money as we are on this single program.

      Lastly, something that I should mention: CEV design is not going well 2. I agree with Jeff Bell, who's been very critical of the whole proposal.

      --
      I tore these out of your symbol, and they turned into paper.
  2. Why Then Not Now? by foundme · · Score: 4, Interesting

    I bet this question has been asked many times, but here goes:

    Why was it possible to go to the moon in '69 but not possible now even using the same old technology? Has the moon/earth/atmostphere/space changed?

    --
    Please stop entering code 2,2,7,6,6,4
    1. Re:Why Then Not Now? by masklinn · · Score: 5, Insightful

      From the top of my head:

      • Safety, in '69 it was an adventure, costs didn't really matter, it was a first, and lives and comfort could be somewhat disregarded. Not so today, especially with the recent Space Shuttle issues.
      • Public drive, in the 60s it was Being On The Moon Before The Red Plague. Doesn't sell anymore, unless you can sell Go Back On The Moon Before China Goes There For The First Time. And you won't sell that one.
      • Return on Investment. The initial Apollo yielded very interresting scientific results, but not much else, it's main point was beating the soviets in the space race and putting the USA at the top. Future lunar missions will have to bring much more, and not only to scientists.

      In a word, it's not that it's impossible to go to the moon now, but that it's inacceptable.

      --
      "The way we can tell it's C# instead of Haskell is because it's nine lines instead of two." -- wadler
    2. Re:Why Then Not Now? by monkaduck · · Score: 4, Insightful

      In short, it's all about politics. The actual physics have never changed; it's just a matter of the government giving NASA the money (which IIRC was only .04 cents/federal tax dollar for Apollo)and the clearance to do a moon shot. Back then Vietnam killed off the last two Apollo missions, and now it'll be The War On Terror and Balanced Budgets that has made it hard for us to do any realistic shot at the Moon or Mars. Quite sad, really.

      --
      Napalm is nature's toothpaste
    3. Re:Why Then Not Now? by masklinn · · Score: 4, Funny

      BTW - this is NOT a troll.

      Maybe this isn't, but since there isn't any "-1 Terminal Stupidity" mod it's the closest /. has.

      --
      "The way we can tell it's C# instead of Haskell is because it's nine lines instead of two." -- wadler
    4. Re:Why Then Not Now? by masklinn · · Score: 4, Informative

      They actually put 3 reflective mirrors for the LLRE (Laser Lunar Ranging Experiment), during Apollo 11, 14 and 15. The mirrors are still in use today.

      --
      "The way we can tell it's C# instead of Haskell is because it's nine lines instead of two." -- wadler
    5. Re:Why Then Not Now? by dmp123 · · Score: 5, Funny

      > In a word, it's not that it's impossible to go to the moon now, but that it's inacceptable.

      Me fail english? That's unpossible!

    6. Re:Why Then Not Now? by Deadstick · · Score: 3, Informative

      It's called a corner reflector: three mirror surfaces mutually perpendicular. It has the interesting property that light striking it from any direction will wind up going back exactly the way it came -- after reflecting off one, two or three surfaces depending on where it hits first.

      Make it from sheet metal and it works for radio waves...hang one from the mast of your sailboat and vessels with radar will see you as easily as they can see the Love Boat.

      rj

    7. Re:Why Then Not Now? by BlueStraggler · · Score: 3, Insightful

      Why was it possible to go to the moon in '69 but not possible now even using the same old technology? Has the moon/earth/atmostphere/space changed?

      A little thing called "lost technologies". It is entirely possible to forget how to do things.

      A goodly portion of the knowledge encapsulated in any serious technological endeavour cannot be captured in blueprints and technical documents. It exists in the heads of the engineers, scientists, and astronauts who actually do the stuff. Going back to the original documents will give us a head start in re-learning how to do it, but not much more than that. If you don't have a teacher that actually knows how to do it, you are in the same position as someone learning how to speak Ancient Egyptian, given nothing but walls of hieroglyphics. It is possible to deduce some semblance of meaning, but it's frightfully hard to actually learn how to do it.

      The primary problem is that the senior NASA engineers in 1969 are mostly dead now. They did not have any apprentices whom they could mentor in the arcane business of placing men on celestial bodies, and no young masters in that art grew up in their footsteps applying their own clever insights to refine the art further. The entire business was pretty much forgotten, and now we are back where we started, albeit with some hieroglyphics that we could spend some time trying to decode if we had to.

      At Cape Canaveral, there is a complete Saturn V launcher on display at the Visitor's Centre. This is like the Great Pyramid of space missions -- a complete, working example of a device to put men on the moon. Unfortunately, they chose to lay the rocket on its side, which it was never designed to do. So structurally, the device was completely destroyed and is now useless, having even lost much of its value as an engineering archive.

      So in many respects, we simply have to start over, and re-learn what we already knew.

    8. Re:Why Then Not Now? by rhendershot · · Score: 3, Insightful
      They did not have any apprentices whom they could mentor in the arcane business of placing men on celestial bodies

      We still know how to put a complicated technological device into orbit and how to include humans in that. We still know how to find the point of breakaway orbit to accomplish putting that object in places outside of Earth orbit. We still know how to manage the health of those humans and how to return them to Earth.

      I get your point, but I don't think the situation is as dire as you present.

      We will have to redesign the systems. Newer composites and materials that are lighter, more resiliant and possibly, thought not probably, less expensive. But in any case, much different. Faster computers, better robotics, more intelligent software... the possibilities astound me.

      I really don't think that circa 1969 expertise, even having been maintained these several decades, would be all that relevent today. I see it as a positive thing actually since we're now forced into a redesign that, had those entrenched interests persisted, we might not.
  3. It wasn't easy for Apollo either by anim8 · · Score: 5, Informative


    "The Apollo program cost $25 billion, equivalent to about $125 billion in today's dollars."

    [Source: http://www.waltercunningham.com/op_ed_0204.htm%5D

  4. Tech for Sustained Human Space Colonization by Stanistani · · Score: 3, Insightful

    We're doing this to lay down a sustainable infrastructure for continued unmanned and manned spaceflight.

    We don't have the industrial setup to make new 60's gear - and doing so would be unsafe and unwise.

    This is like building shipyards - so we can build ships.

    Properly done - and I have some doubts about the CEVs basis in design - this will allow for much more access to space.

  5. The real reason Bush wants to go back to the moon by Quick+Sick+Nick · · Score: 4, Funny

    You guys are COMPLETELY forgetting about space oil!

  6. Why we don't use Apollo Hardware by trout007 · · Score: 5, Insightful

    The reason we won't use Apollo Hardware is because we want to do much more then land 2 guys on the moon for more then a week. The ultimate goal is to build a moon base and use that as practice for a Mars base. In order to do that you need to bring more stuff to the moon and be able to keep your service module in orbit unmanned for up to 6 months at a time. This isn't all that hard. But currently NASA is working with its current budget so things won't get really rolling until Space Station is built and shuttle retires. Those two programs ending will free up almost $10B a year for NASA. That is plenty of money to do a slow gradual build up to a moon base.

    --
    I love Jesus, except for his foreign policy.
  7. Re:Moon Base Bush is pie in the sky by prisoner-of-enigma · · Score: 5, Insightful

    The whole "back to the Moon" thing is a load of garbage.

    Your short-sightedness is amazing here. "There's nothing more to learn on the Moon"? Where do you get that from? We've sent precisely six manned missions to the moon in all of human history. Only twelve humans have actually walked on it. Almost none of them had a strong scientific background (although many learned it in order to be more effective). Yet we know everything there is to know about the moon according to you. Your hubris is absolutely mind-boggling.

    Experts have long admitted that launching a mission to Mars from the Moon is far more difficult than doing it from here.

    Umm...exactly who is proposing we launch a Mars mission from the Moon? Bush sure isn't, and neither is any other sane person. To build up a launch infrastructure on the Moon would be a multi-decade endeavor and would likely eclipse a Mars mission for sheer complexity and cost.

    No, the Moon is a beta test site, if you will. No human has left low Earth orbit for almost four decades! All the engineers who made Apollo work are either dead or retired. Our heavy lift capacity is completely moribund. With but few exceptions, we're going to have to learn a bunch of things all over again. Which is a better place to learn these things, a spot that's only a couple of days away from the Earth via free-return trajectory, or a spot that's months away with no such option? It doesn't take much more intelligence than a turnip to understand the former is far more advantageous than the latter. It's safer, it'll cost less, and we'll get quicker "knowledge returns".

    Once we rediscover how to get to the Moon, setting up a moonbase will essentially be a "dry run" for setting up a Mars habitat. True, the lunar surface and Martian surface don't have a lot in common, but they're both immensely rugged and challenging environments to construct even a sand castle. Learning how to build a moonbase will teach us in no small part how to build a Mars base. Or would you rather we get to Mars first then try to figure all this out then, when astronauts are beyond any easy help from Earth?

    NASA has become the "Santa Claus" of the U.S. Government. Keep the children excited and maybe they'll think there really is a future, after all.

    While I'll freely admit NASA is merely a vast sinkhole for funds and functioning solely as a reason to have a space station right now, the return to the Moon does not fit that category. There is a future if ostriches like yourself would only see it. Instead, your cynicism and politcal bias appears to be clouding what might otherwise be a capability for sound judgement on your part.

    --
    In the end they will lay their freedom at our feet and say to us, Make us your slaves, but feed us. - Fyodor Dostoyevsky
  8. Bout Time by truckaxle · · Score: 3, Insightful

    Life needs to find a way off this gravity well before the next "great extinction". For better or worse that burden falls on us, homo sapiens sapiens. People view earth as some permantent hospitable sustaining womb and that "we should just solve our problems here on earth first" before venturing out.

    The truth is we will never solve our problems here and geological and life history tells a story with several instances of wide spread extinction of species. Life has come a long long long way and if our puny existance has any meaning at all it is spread self-aware intelligent life beyond our little neighborhood.

    There's a whisper on the night-wind, there's a star agleam to guide us, And the Wild is calling, calling...let us go....

    1. Re:Bout Time by Larthallor · · Score: 3, Interesting

      In the last 500 million years of life, not one of the "great extinctions" even came close to turning the Earth into a dry, frozen world with little or no atmosphere. And yet, you seem to think that putting people on just such worlds (the Moon, Mars) are going to help? That makes zero sense.

      First things first, the liklihood of a catastrophe large enough to wipe out humanity is geologically small. The most likely forms for such catastrophe would be man-made, such as nuclear or biological war and even these aren't likely to wipe out humanity by themselves. We can afford to wait a very long time for technology to make colonies cheaper and more practical.

      Second, for the forseeable future, any Lunar or Martian colonies will be dependent on a healthy Earth to supply them. If Earth gets wiped out, these colonies are all dead within a generation. It will take a great while before we have the technological and financial ability to create truly self-sufficient colonies on Mars and even longer to do so on the Moon. In the meantime, you're wasting your survival money.

      Third, any disaster that could threaten an unprotected humanity here on Earth could be better (and much more cheaply) survived by building self-contained shelters/cities here on Earth. If you really want to prevent a calamity from wiping out humanity, it is much easier and cheaper to build Terran colonies than Martian ones.

      Here on Earth, a Terran colony would only have to be self-contained until the conditions improved enough to go outside again. Even if that is 50-100 years, it's much better than on Mars or the Moon, where it is never going to get better. A more realistic scenario would have a staged recovery on Earth, with full self-containment only necessary for a short period of time, if at all. Maybe you would only have to be entirely self-contained for 5 years, after which you could start to pull in filtered air and water from the surface while you continue to shelter in the colony. That's not possible anywhere else in the Solar System.

      Let's review what Earth would offer would-be survivalists only months after an asteroid strike of the proportions that wiped out the dinosaurs:

      1. Ideal gravity
      2. Ideal atmosphere
      3. Abundant liquid water
      4. Ideal soil conditions
      5. Ideal temperature
      6. Ideal Solar flux
      7. Zero travel costs

      The rest of the Solar System is a very inhospitible place to live, let alone raise children and flourish. Even an Earth ruined by war, global warming, or impact is literally a "hospitable sustaining womb" relative to any other place in the Solar System and can not be beat. It may not help you get to see Mars in your lifetime, but the best place to escape a catastrophe on Earth is Earth.

    2. Re:Bout Time by khallow · · Score: 3, Interesting
      While you have the best form of this argument I've seen, it still sucks. First things first, the liklihood of a catastrophe large enough to wipe out humanity is geologically small. The most likely forms for such catastrophe would be man-made, such as nuclear or biological war and even these aren't likely to wipe out humanity by themselves. We can afford to wait a very long time for technology to make colonies cheaper and more practical.

      I don't see why we should gamble that nuclear or biological war won't wipe out the human race. Your assurances are after all worthless. And even if humanity can survive any such event doesn't mean that all cultures will.

      Also, there are other types of human catastrophes. For example, a stagnant global government (particularly something along the lines of a "hydraulic empire" might be stable on geological time scales. Runaway global warming is another potential threat.

      Second, for the forseeable future, any Lunar or Martian colonies will be dependent on a healthy Earth to supply them. If Earth gets wiped out, these colonies are all dead within a generation. It will take a great while before we have the technological and financial ability to create truly self-sufficient colonies on Mars and even longer to do so on the Moon. In the meantime, you're wasting your survival money.

      As I see it, you seem to think now is not a good time, but some hypothetical future will be a good time. What's the criteria you're using here?

      There will be a period of dependency no matter when the colony is started. We don't even know how much gravity a human needs, Mars and the Moon might not be inhabitable by us in our current forms. But we won't know until we try. Therefore, it isn't a good reason to *delay* the creation of a colony. After all, the sooner we get started, the sooner we understand just what is needed, the sooner a colony is established, and the sooner it will become self-reliant.

      And once a colony is self-reliant, your whole argument is irrelevant.

      Third, any disaster that could threaten an unprotected humanity here on Earth could be better (and much more cheaply) survived by building self-contained shelters/cities here on Earth. If you really want to prevent a calamity from wiping out humanity, it is much easier and cheaper to build Terran colonies than Martian ones.

      As I noted before, there are disasters (like stagnant world governments stable on geological time scales) that can only be avoided by not being on Earth.

      Here on Earth, a Terran colony would only have to be self-contained until the conditions improved enough to go outside again. Even if that is 50-100 years, it's much better than on Mars or the Moon, where it is never going to get better. A more realistic scenario would have a staged recovery on Earth, with full self-containment only necessary for a short period of time, if at all. Maybe you would only have to be entirely self-contained for 5 years, after which you could start to pull in filtered air and water from the surface while you continue to shelter in the colony. That's not possible anywhere else in the Solar System.

      But it doesn't need to be anywhere near as good as Earth on Mars or the Moon. Let me add that an Earth-based self-contained colony has little value outside of disaster insurance while space colonies will be able to provide a considerable supply of scientific data and adaptation to extreme environments even if nothing else. Frankly, I think most industry will end up in space. There's no ecology to destroy there and plenty of mass, energy, and space for making things.

      Earth will likely remain a better place for humans to live than anywhere else in the Solar System, but it need not stay that way.

      The rest of the Solar System is a very inhospitible place to live, let alone raise children and flourish. Even an Earth ruined by war, global warming, or impact is literally a "hospitable s

  9. Re:Moon Base Bush is pie in the sky by trout007 · · Score: 5, Interesting

    NASA is hiring many Apollo engineers back as consultants to help with this. These guys did a lot with basic engineering skills and great common sence and a WHOLE lot of testing. Many are alive and in their late 60's.

    --
    I love Jesus, except for his foreign policy.
  10. Them thar terrists cain't beat us, George! by ystar · · Score: 3, Funny

    We have to beat the terrorists to the moon!

  11. Re:One more irreverent comment by jlowery · · Score: 3, Funny

    You support him. Q.E.D.

    --
    If you post it, they will read.
  12. Re:Overclocker's wet dream! by masklinn · · Score: 3, Informative

    Sadly not, while space is "considered" quite cold the only way to cool is through heat radiation, which is pretty fucking inefficient, especially in near-vacuum. That's why satellites are usually shielded against heat: they can't dissipate it.

    --
    "The way we can tell it's C# instead of Haskell is because it's nine lines instead of two." -- wadler
  13. Re:Top Heavy by Jim_Callahan · · Score: 3, Insightful

    Um, they're commited to over-engineering and risk avoidance because if the astronauts die or the spacecraft fail, then a bunch of money and lives have just been wasted. The whole point of exploration is that you don't know what conditions are going to be like, exactly, in the places you explore. Over-engineering in such cases isn't even really over-engineering. It's just "not being a complete fucking moron".

    That said, NASA is still a government organization (worse, it's now become a sort of international government organization), and as a result it suffers from the $1000000 toilet-seat effect you see in any government organization.

    --
    ...it's really a sad day for America when we require a goddamn ACT OF CONGRESS to make our DVD players work properly. ~
  14. Re:It should be a lot cheaper than in the 60s. by Grishnakh · · Score: 4, Insightful

    Are you nuts or just stupid? As a previous poster said, the Apollo program cost $135 Billion. What private entity has that kind of capital lying around to spend doing something as extremely risky and dangerous as sending humans to another celestial body?

    Even worse, what private company would spend ANY money on a purely scientific mission such as the Mars landers or Titan probe?

    If there were ANY instances of private companies doing anything successful like this, you'd have a point. But you're just trolling.

  15. Sponging?!? by gardyloo · · Score: 3, Funny

    "sponging off Apollo"

    Damn you, Slashdot! Now I'm picturing some strange Greek Hentai stuff. *goes to stab out eyes*

  16. Re:PPC by mrhartwig · · Score: 3, Informative

    Last I heard they'd only use 486s. But this was in 2000.

    No, not 486s. The CPUs in the 5 shuttle computers are AP-101S, which are upgrades from the AP-101B. iirc, the upgrades were circa 1991.

    This CPU has its lineage in IBM 360 mainframes. See http://www.hq.nasa.gov/office/pao/History/computer s/Ch4-3.html or http://spaceflight.nasa.gov/shuttle/reference/shut ref/orbiter/avionics/dps/gpc.html or even

  17. Some monetary reasons to return to the moon by Ex-MislTech · · Score: 5, Informative

    Helium-3 is a good reason to return to the moon .

    It is theorized that there are over 1 million cubic tons,
    with oil over $50 a barrel, and helium-3 then being worth
    about 8 billion USD a ton, the total worth equalling 8,000 trillion USD .

    It could smash the US deficit with 7,991 trillion USD to spare .

    http://www.brillig.com/debt_clock/

    Also keep in mind most of the "other" moons have this as well .

    Here are some photos of the reactor at the University of Wisconsin :

    http://fti.neep.wisc.edu/iec/GeneralOpPics.htm

    http://fti.neep.wisc.edu/iec/GeneralOpPicsII.htm

    25 tons could power the US electrical needs for a year :

    http://www.space.com/scienceastronomy/helium3_0006 30.html

    I don't need to tell anyone that the US is the largest user of electricity on
    the planet at present, and slated for massive growth .

    The current immmigration bill sets aside for 100 - 200 million new citizens .

    Kulcinski adds that, if it sold for $4 billion a metric ton, helium-3 would still be a
    good energy value: "That's the equivalent of paying $28 a barrel for oil."

    It will be a cold day in hell before we see oil at $28 a barrel again .....

    So adjust the math accordingly ...

    It becomes more viable with every passing day .

    If we can make solar mining robots for the moon to process the soil, and
    then use a mass driver to fling a projectile canister into lunar orbit for pick up.
    Then a lunar orbit robotic satellite mass driver to fire it into earth geo-sync orbit .

    Then have either a new space station, shuttle, or satellite prep it for re-entry
    into the ocean for pick up much like the apollo capsules .

    The robotic equipment could be tested here on earth prior to deployment on the moon .

    It might be possible to make robots that could build it all via remote control, but
    most likely we would initially need ppl to go to the moon to build the mass driver
    and support facilities .

    Building some or all of the support facilities underground would protect it to some
    degree versus leaving it exposed on the surface .

    At some future point 3HE+3HE fusion will be achieved and it will have zero nuetron emissions
    and thus be truly clean as per the following link .

    http://en.wikipedia.org/wiki/Nuclear_fusion#Criter ia_and_candidates_for_terrestrial_reactions

    Hope for the future ...

    Ex-MislTech

    --
    google "32 trillion offshore needs IRS attention"
    1. Re:Some monetary reasons to return to the moon by rbanffy · · Score: 3, Insightful

      Do you have any idea of how much regolith you would have to process in order to get a ton of He3?

      And by "process" I mean "extract it, transport it to H3 extraction facilities, grind it, bake it and get rid of the waste". Those facilities will need to be huge (because they have to process a huge amount of rock), built there with local materials (which, in turn, will have to be made there in factories built here), supplied with power, and, unless we advance robotics substantially, manned.

      All that assuming we can do He3 fusion on industrial scale at all.

  18. Re:finance and exploration by Grishnakh · · Score: 3, Insightful

    This is retarded.

    Private interests were able to fund and develop cars, electrical power, and telecommunications because the advances there had immediate and obvious commercial benefits. People were all too happy to buy Model Ts and stop riding horses, and they were happy to have electric lights. Telecom's a little different: a lot of the development of infrastructure for telecoms has been government subsidized because of the enormous capital expense.

    Where's the commercial benefit to space exploration? Especially in the 1950s-1970s when it was at its peak? If you really think private interests could have had a man on the moon in 1969 you're a complete fool. Even today, private interests (which are only funded by 1) wealthy individuals like John Carmack, and 2) the incentive of big prizes from government money) haven't managed to get a man out of the atmosphere.

    In today's economic environment, if there's no profit to be gained by something within 5 years, it's simply not going to be done.

    I'm sorry if the reality of the necessity of government-funded research goes against your Randian ideals, but that's reality.