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The Moon's Magnetic Umbrellas

eldavojohn writes "When it comes to space exploration, there are things that are good for humans (water) and things that are bad for humans (radiation). In order for exploration of the moon to occur, its lack of a global magnetic shield to block solar radiation must be addressed. Luckily, scientists have discovered that there are highly magnetized areas of the moon's crust that could shield settlements." From the article: "Current evidence suggests that impact-basin ejecta materials [material blasted out by huge asteroid or comet impacts] are the most likely sources of many or all of the magnetic fields ... These ejecta contain microscopic metallic iron particles that are the carriers of the magnetization."

16 of 125 comments (clear)

  1. hmmm... by operato · · Score: 3, Funny

    can't we just hide underneath some rocks? or can radiation get through moon rock since it's made of cheese?

  2. This is ridiculous by Timesprout · · Score: 5, Funny

    How the fuck can cheese possibly be magnetic!

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  3. TMA-1 by $RANDOMLUSER · · Score: 5, Funny

    I understand there's a large magnetic anomoly in the Tycho crater...

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    1. Re:TMA-1 by Speare · · Score: 4, Informative

      The parent was a reference to the "Tycho Magnetic Anomaly 1," the discovery of the second Monolith in the novel and movie, "2001: A Space Odyssey."

      The first monolith was temporarily positioned near the early homo erectus tribes, giving them a sort of gift of wonder and exploration, which immediately translated to tool usage and subsequent dominance over their competing tribes for resources.

      The second monolith was a simple beacon to indicate when mankind was ready to travel away from its home planet. It was buried under the crust of the moon, and the ONLY indication it gave to humanity was that it disturbed the natural magnetic flux of an inert rocky ball. Tycho itself may have even been shaped to help lead mankind to it. Once exposed to the vacuum of space, it sent a loud radio signal that would be heard by the likely discoverers as well as lead them to the next monolith breadcrumb.

      Of course, Dave Bowman found the third monolith despite the psychotic interference of a computer with competing secret directives.

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  4. Short List by richdun · · Score: 5, Funny

    Other things that are bad for humans in space:

    Vaccuum
    Lack of hospitable worlds within a light-lifetime of Earth
    Space junk in LEO
    Lack of food/flora/fauna
    Lack of easy return trips
    Metric/English conversions
    Klingons
    Frakking toasters
    Pod bay doors
    Random ion storms which give superhuman powers
    Maniacal dictators who for some reason want to use their newest Deus Ex Machina on Earth ...

    1. Re:Short List by Matimus · · Score: 5, Funny

      ...superhuman powers

      ...I'll take one for the team

      I don't think giving superhuman powers to a guy named Apocalypse111 is the best move.

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    2. Re:Short List by cruff · · Score: 3, Informative

      You also forgot:

      Self-aware planet destroying bombs
      Aliens that look like beach balls with funny feet

  5. Re:Three words by 2nd+Post! · · Score: 4, Funny

    It's a good thing you can't spell ridiculous, or we would have to take you siriusly.

  6. Great settlement idea. by hal2814 · · Score: 5, Funny

    Let's build our moon colony in the areas where there are strange magnetic readings. And when those colonists disappear mysteriously, we can send in a crack commando team to investigate. This would lead to entertaining action, some mild humor, and perhaps even a little romance.

  7. See current Analog magazine by Beryllium+Sphere(tm) · · Score: 3, Informative

    Artificial magnetic shielding is surprisingly economical. Big weak fields do a fine job deflecting charged particles, and you can generate them with a superconducting cable around the rim of a crater. Polar craters (where the ice might be) are plenty cold enough for today's high temperature superconductors.

  8. Re:Never going to happen by Tx · · Score: 3, Insightful


    1) The moon is too ugly


    I guess one man's ugly is another man's beautiful
     
    ...and the gravity too light.

    A plus for most Americans - instantly lose 5/6 of your weight just by relocating

    2) Mars is ugly too, but even beyond that, it won't be allowed because we won't want to screw up the natural environment for study.

    Can't study it properly if we don't go there. Studying Mars will likely be the justification for any first settlement.

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  9. Are the sites ideal for other necessities? by Scothoser · · Score: 4, Interesting

    The article is great, because it does outline the major problem facing permanent settlement on the Moon: radiation. But there are some other necessities that need to be addressed, like reinforcing of the magnetic field during solar flares, the crater's proximity to other elements for the production of power and water, and the need for solar power.

    While it's a great start, it doesn't answer all the questions, which leaves scientists and future lunar explorers with a great question: Do they build up a complex network of sites, or continue to try to find the ideal spot?

    With increasing pressure from other countries to get to the Moon first, as well as additional programs to settle the moon as a research outpost, the pressure is on. So while this is a great find, and will augment any magnetic solution that mankind could come up with, it's only part of the puzzle. That being said, it is an important part of the puzzle.

  10. Re:Terraforming by Apocalypse111 · · Score: 4, Interesting

    Pretty much. The Earth is habitable primarily because of its strong magnetosphere. This magnetic field deflect a large amount of the harmful radiation (and other particles in the solar wind) that would otherwise blow away our atmosphere and fry us all. Now, the whole domed-city concept is still possible, if impractical, and there's always the possibility of building underground and using the lunar surface as a radiation shield - but terraforming? Not really.

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  11. I must be a freak then... by nick_davison · · Score: 3, Insightful

    there are things that are good for humans (water) and things that are bad for humans (radiation)

    Being a fan of light and heat but not drowning, does that make me a weird human?

    As the old saying goes: all things in moderation. Radiation's pretty useful, just as water is. Overwhelm my body with either though and things start to go wrong. In the history of humanity though, I'm guessing more people have died from too much water than too much radiation - if only due to the convenience of access to excess of one and not the other.

  12. Magnetic Anomalies on the Moon by ettlz · · Score: 3, Funny
    To: Lightspeed Traveller <lbt@astro-bio.uorion.ac>
    From: Ascended Super Thingy <ast@astro-bio.uorion.ac>

    I still maintain the point that designing a black monolith in 2001 is
    a fundamental error. Be thankful you are not my student. You would not
    get a high grade for such a design :-)

    AST
    Head of Alien Protosocietal Development

  13. Magnetic umbrellas? by smittyoneeach · · Score: 3, Funny

    Magnetic umbrellas?
    Listen, fellas.
    Stop the rays
    Or so they tell us:
    Burma Shave

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