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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."

14 of 312 comments (clear)

  1. 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

  2. Re:Why Then Not Now? by Anonymous Coward · · Score: 1, Informative

    Didn't they stick a mirror up there for astronomers to be able to reflect off of to get a very accurate distance between the earth/moon? And the flag?

    IIRC, the evidence is visible by the naked eye with a telescope. Not that that doesn't stop trolls from blabbing about it being a fake.

  3. Perhaps this film explains why by drpimp · · Score: 2, Informative
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  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: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.
  6. 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.

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

    No, in fact the second generation of the Mercury program (Mercury Atlas) was based off of the Atlas ballistic missile. And after that, Gemini was based off of the Titan ballistic missile. Apollo of course came next, and AFAIK no major sections of the Saturn rocket were based off of any ICBM designs.

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  8. Re:It should be a lot cheaper than in the 60s. by Retric · · Score: 2, Informative

    That's some nice fuzzy logic.

    If 1$ into NASA = 9$ back from R&D and only .1$ was spent on R&D then for each 1$ of NASA R&D you get 90$.

    However, this tells you nothing of what the other .9$ ends up doing, and it says nothing about what else you could have spent the money on. I don't think that spending such money on new cars would create 90$ in economic benefit.

    PS: Most government waste = someone's profit which is why most people want to privatize government so they can profit from such waste. It costs the economy just about nothing to have the government give Bowing 1 million dollars. The only time you have economic loss is when some resource is consumed without benefit. AKA: A house burning down, someone getting sick, or an auto accident. The only things which create long term economic gain are that which increase economic efficiency such as R&D, Education or Infrastructure because they prevent waste.

  9. 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

  10. 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

  11. 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"
  12. Re:Why Then Not Now? by Iron+Sun · · Score: 2, Informative

    The crew of Soyuz 11 died while attempting to return from the Salyut 1 space station. A faulty valve led to the loss of all their air just prior to re-entry when the service module was separated from the descent module. They had fired the de-orbit burn, so they were not technically in orbit, but they died in space proper rather than the upper atmosphere like the crew of Columbia.

  13. Re:It should be a lot cheaper than in the 60s. by Rifter13 · · Score: 2, Informative

    I would like to point out, I said for every $1 paid into NASA, $9 worth of economic growth came out. That was NOT just R&D, though, I suspect, that is where the vast majority of the money came from. Sorry, I wish that I had the exact numbers, etc. It was a while ago.

    I am not a socialist, which I think the above poster made it sound. I DO think that PURE research, like this, is more likely to be government funded. Pure research is a good thing.

  14. Re:It should be a lot cheaper than in the 60s. by mdwh2 · · Score: 2, Informative

    Under currently mainstream economic theories, those things add to the economy. Rebuilding a house, needing medical care, repairing a car - that's consumption, which means production, which means a higher GDP!

    This sounds like the Broken Window Fallacy. Clearly, the economy is poorer by one house - the fallacy is in ignoring what else the money would have been spent on.

    Which also relates back to the idea of getting research out of NASA - it ignores the possibility of spending money on research directly (it's kind of like when people say wars are good for the economy because they create jobs and encourage research - although obviously I'd rather have space travel than wars).