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Interviews: Ask Shaun Moss About Mars and Colonizing Space

samzenpus writes: Shaun Moss is a computer scientist with a 15-year passion for Mars. While reading Red Mars by Kim Stanley Robinson in 1999 Shaun realized that people would go to Mars in his lifetime, and he decided he wanted to be part of that. Since then he has been an active member of a variety of space enthusiast groups, including the Mars Society and Mars Society Australia. Shaun is also the founder of the Mars Settlement Research Organization. His research has included how to make air and steel on Mars, Martian timekeeping systems, terraforming and more, and he has given numerous presentations at conferences in Australia and the United States. For the past 1.5 years he has been developing a robust and affordable humans-to-Mars mission architecture and a plan to establish an International Mars Research Station, which is now available as a book. Shaun has agreed to answer any questions you may have. As usual, ask as many as you'd like, but please, one per post.

99 comments

  1. Will humans or Mars abide by the law on Earth? by Anonymous Coward · · Score: 0

    I think once any of us reach Mars. We instantly start our own government there. Why would anyone work under the authority of the government on Earth?

    1. Re:Will humans or Mars abide by the law on Earth? by ZankerH · · Score: 2

      Because it's very unlikely the first expeditions will be completely independent of Earth - they're likely to rely on continued support for survival, much like the ISS needs resupply ships. Closed-loop life support probably won't be solved before we get to Mars.

  2. Government on Mars by Anonymous Coward · · Score: 0

    Who will abide by the laws on Earths once they reach Mars?

  3. Dates by Mr+D+from+63 · · Score: 1

    Do you think you'll be able to get one on Mars?

    1. Re:Dates by Anonymous Coward · · Score: 0

      Sure - dates, figs, prunes and other fruits can probably be grown under the right circumstances.

  4. One way death trip ... by gstoddart · · Score: 1

    So how do you respond to things like Mars One, which more or less seems to be a suicide mission in which people will be shipped to Mars, and assuming they make it that far will basically be on their own to survive?

    Mars One seems to be using the business model of the underpants gnomes, and leaving a lot of things unanswered.

    Apparently people dying on another planet will make for good TV.

    --
    Lost at C:>. Found at C.
    1. Re:One way death trip ... by Charliemopps · · Score: 1

      Mars One is a pyramid scheme. They aren't shipping anyone anywhere.

    2. Re:One way death trip ... by Anonymous Coward · · Score: 0

      Correction, Mars One is a hilarious pyramid scheme. Have you seen interviews with the candidates? Their heads were so far up their own asses they were practically half-way to Mars already. Then it was revealed their sole basis for selection was the accessibility of their bank accounts.

      Man, I need to watch some of those interviews again.

  5. How many planets have you explored so far? by WillAffleckUW · · Score: 1

    Also, do they have beachfront property, and can we party on them?

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    -- Tigger warning: This post may contain tiggers! --
  6. How to handle radiation exposure? by Anonymous Coward · · Score: 0

    One of my main concerns regarding a manned martian research station is that I have heard no serious consideration of the amount of radiation humans would be exposed to on the surface and in transit. How would your plan address this issue?

    1. Re:How to handle radiation exposure? by Anonymous Coward · · Score: 0

      In transit the radiation levels are somewhat high, but once you're on Mars even without any additional radiation shielding its not too bad. I think a 500 day Mars round trip (no radiation shielding) is estimated to be in the 1 Sievert area, the recommended lifetime exposure for an Astronaut (~3-5% increased cancer risk). A vast majority of that exposure is from the Earth/Mars transit. On the surface the levels are about the same as you'd experience on the International Space Station. Even putting in place basic protections (burying living modules, shielding, etc) should bring it down to more Earth-like (Airline pilot, Nuclear plant worker, etc) levels. You're never going to get it down to the levels experienced by a school teacher in Miami FL, but the risks can be brought down to levels we find statistically acceptable in a myriad of other areas (tobacco use, fisherman, Fireman, Living in tornado alley, etc).

  7. Why Do You Think Colonizing Mars Is A Good Idea? by Anonymous Coward · · Score: 0

    Mars ain't the kind of place to raise your kids. In fact, it's cold as hell!

  8. Will my martian kids grow up to rebel? by WillAffleckUW · · Score: 1

    Or will they remain a colony of Imperial Britannia forever?

    Also, do I have to send them birthday presents, cause it's really really expensive to ship there.

    --
    -- Tigger warning: This post may contain tiggers! --
  9. Mars One? by quantaman · · Score: 3, Interesting

    What's your opinion on Mars One?

    I'm extremely sceptical that they can achieve their roadmap or anything close to it, do you share this scepticism? If so do you think they're mostly finished at this point (ie the project will fade into obscurity) or do you think the Mars One group will achieve something significant in the future?

    --
    I stole this Sig
  10. Can Mars children can ever return to Earth? by Anonymous Coward · · Score: 0

    Won't Mars children grow up too tall and thin-boned to ever return to Earth?

    1. Re:Can Mars children can ever return to Earth? by Anonymous Coward · · Score: 0

      Better. We don't want those foreign freaks coming here and taking our jobs.

    2. Re:Can Mars children can ever return to Earth? by Anonymous Coward · · Score: 0

      Earth girls will be jealous

    3. Re:Can Mars children can ever return to Earth? by Applehu+Akbar · · Score: 1

      "Won't Mars children grow up too tall and thin-boned to ever return to Earth?"

      They won't be like us, but they will have a highly popular sitcom.

  11. Why? by Anonymous Coward · · Score: 0

    I've been to Nevada - it sucks. Really, Mars can't be much better.

  12. Radiation abatement by tbg58 · · Score: 3, Interesting

    Primary galactic cosmic radiation bombards the surface of Mars because its magnetic field is too feeble to turn high-energy charged particles aside, but most colonization plans envision human-constructed habitations on the surface. How much work is being directed toward finding subsurface features (lava tubes, sinkholes) which can provide radiation-hardened locations for long-term habitations? (and perhaps a word about popularizing both the risk and subsurface habitation to address it).

    1. Re:Radiation abatement by penguinoid · · Score: 1

      I thought it was just artists who envisioned martian habitations on the surface? Dirt is, after all, one of the better protections against radiation, temperature changes, micrometeorites. But underground dwellings aren't very artistic.

      --
      Don't waste your vote! Vote for whoever you want, unless you live in a swing state it won't matter anyways
  13. Turnkey Accomodations by MarkvW · · Score: 1

    How far away are we from remotely constructing a fully human-ready, self-sufficient Martian living environment (mining, farming, fabricating, energy production, etc.)?

    1. Re:Turnkey Accomodations by NoNonAlphaCharsHere · · Score: 1

      That's easy. Twenty years -- same as the Leisure Society, fusion power too cheap to meter and flying cars.

  14. Snow. by sims+2 · · Score: 1

    what will they do on mars without snow?

    --
    Minimum threshold fixed. Thanks!
    1. Re:Snow. by Anonymous Coward · · Score: 0

      Whoa, whoa whoa. No snow? Funk Dat. I'm out!

  15. Did you see "Paul"? by Anonymous Coward · · Score: 0

    Whdayathink?

  16. Moon First? by Anonymous Coward · · Score: 0

    Why not first the moon?

    1. Re:Moon First? by Anonymous Coward · · Score: 0

      Atmosphere, Temperature? Mars definitely has its share of issues but for example on Mars you could conceivable set up a greenhouse with little more than some dirt, an inflatable clear greenhouse, a compressor and a heater. The same setup on the moon would require artificial lights, tons of bottled air, micrometeorite shielding, repair equipment, a much larger heating/energy source and probably more.

    2. Re:Moon First? by Anonymous Coward · · Score: 0

      Atmosphere, Temperature? Mars definitely has its share of issues but for example on Mars you could conceivable set up a greenhouse with little more than some dirt, an inflatable clear greenhouse, a compressor and a heater. The same setup on the moon would require artificial lights, tons of bottled air, micrometeorite shielding, repair equipment, a much larger heating/energy source and probably more.

      Um, do you even know where the moon is? It's in Earth orbit, which means the moon gets about the same amount of solar radiation per unit area as the Earth - actually a bit more, because there is no atmospheric absorption. It's Mars where plants will need artificial lights. About the construction of the greenhouse, it would need to be equally air-tight on the moon and on Mars. The thin atmosphere of Mars is not going to be deflecting micrometiorites. You wouldn't be using "bottled air" on the moon, because there is water (ice in polar craters) from which we would make breathable air. Repair equipment, which would be needed in both places, is much easier to bring to the Moon.

      You know, this is a forum where we're asking questions of an expert, and it's a good thing, because in your answer, pretty much every single thing you said is wrong.

    3. Re:Moon First? by Muad'Dave · · Score: 1

      It's in Earth orbit, which means the moon gets about the same amount of solar radiation per unit area as the Earth...

      You're technically correct, which as we all know is the best sort of correct. :-)

      The issue isn't the amount of light per unit area, it's the 2 week periods of darkness that will likely kill off your plants. Plants don't really like to grow in two week on/two week off spurts.

      --
      Tiller's Rule: Never use a word in written form that you've only heard and never read. You will end up looking foolish.
  17. Teraforming by Charliemopps · · Score: 1

    I believe the most likely way we'll actually have any impact on Mars is via genetically engineered microbes, as we've recently seen Darpa has mentioned.
    http://science.slashdot.org/st...
    This, at first blush, seems harmless, Mars is already dead. But given the increasing evidence that Mars and likely many other celestial bodies have in the past and maybe even at the present microbial life on them, and that it's extremely likely all of the planets in the solar system routinely trade biological materials via asteroid impacts. It seems that logical to assume that Biological Tera-forming of Mars is also Biological Tera-forming of Earth.

    In short, the Bugs we design here, and send there, will eventually come back to haunt us.

    Do you have opinion on this? I love science, and want us to use it to our benefit. But I'm not ignorant to the fact that nature has the uncanny knack of turning our best intentions to ashes in our mouths.

    We are all . . . children of this universe. Not just Earth, or Mars, or this system, but the whole grand fireworks. And if we are interested in Mars at all, it is only because we wonder over our past and worry terribly about our possible future.

    — Ray Bradbury, Mars and the Mind of Man, 1973.

    1. Re:Teraforming by shadowrat · · Score: 1

      or.. they wouldn't be able to survive here because they like a dry dead planet with almost no oxygen and water. Assuming the universe is engaged in this large scale panspermia, aren't we getting hit by alien microbes constantly? why would the ones we make be so much more dangerous?

    2. Re:Teraforming by XxtraLarGe · · Score: 1

      or.. they wouldn't be able to survive here because they like a dry dead planet with almost no oxygen and water. Assuming the universe is engaged in this large scale panspermia, aren't we getting hit by alien microbes constantly? why would the ones we make be so much more dangerous?

      Because mundane microbes wouldn't make a very good science fiction plot.

      Seriously though, if we were constantly getting hit by alien microbes,we haven't found any yet, so constantly seems like a bit of a stretch. Panspermia on the whole seems entirely improbable. First, you need a planet on which the conditions for life exist. Next, you need some sort of cataclysmic event like a meteor impact which strikes the surface of the planet hard enough to eject a portion of the impacted planet. Then the life forms on that portion need to survive the rigors of space including radiation, lack of normal gravity, lack of food & water, etc., plus travel through gas clouds, possible impacts with other objects, and so on. The life forms would have to survive that most likely for millions of years and then the ejected portion would have to come into contact with another planet capable of supporting the same type of life forms. Then the life forms would have to survive the entry into the planet's atmosphere and impact with the planet.

      --
      Taking guns away from the 99% gives the 1% 100% of the power.
    3. Re:Teraforming by Applehu+Akbar · · Score: 1

      "In short, the Bugs we design here, and send there, will eventually come back to haunt us."

      Back contamination by meteoric spallation will take literal geologic eons. Meanwhile, Mars would be an ideal place to experiment with advanced GMO technology free of Earth's pests of the legal kind.

  18. Exports by Anonymous Coward · · Score: 1

    Is there anything that Mars could profitably export to Earth?

    1. Re:Exports by Anonymous Coward · · Score: 0

      drugs (because no DEA there)?

    2. Re:Exports by Anonymous Coward · · Score: 0

      It should be cheaper to to get to low earth orbit from Mars than from Earth surface - 6 km/s vs 9.4 km/s. It just takes a lot longer... but that's okay for a 'pipeline' of inert stuff. So anything useful in LEO that can be produced on Mars could be a profitable export. Water, Methane, & plastics seem the most likely first.

  19. How can I help? by Anonymous Coward · · Score: 0

    I'm very interested in this, but like most have limited time. What can I do to get involved and further this?

    1. Re:How can I help? by Applehu+Akbar · · Score: 1

      And never vote Democrat either, because that's where the anti-science wackos congregate. Seriously, if we're going to get anywhere, we need a new pro-science party.

    2. Re:How can I help? by surd1618 · · Score: 1

      we need a new pro-science party

      A vote for me gets the IRS the microscopes they so direly need! I don't have PACS, just millions of grad students writing grants! Whatever is leftover from the campaign, I will use to build gargantuan cannons that run on superconductors, that fire invisible stuff! Also I recently read an authortative article that subverts whatever 'fact' you happen to mention at a social function.

  20. Financial self sufficiency by currently_awake · · Score: 1

    In order to be viable, a Mars colony must pay for anything they need to import from Earth. Given that nothing on Mars will be cheaper than on Earth (economy of scale, no space suit required, third world wages, shipping costs), how can they maintain a positive trade balance with Earth?

    1. Re:Financial self sufficiency by Katatsumuri · · Score: 1

      Umm, research and development? Digital services and products? Telecommuting? Outsourcing? Entertainment? Tourism?

      What is this website again?

      Yes, it will be very expensive to bootstrap, but once most of the resources by mass can be sourced locally, it is not that hard to imagine a reasonable trade balance in our age.

  21. Lunar Space Elevator by NoImNotNineVolt · · Score: 2

    Decades ago, Jerome Pearson produced detailed plans for a lunar space elevator for NASA Institute of Advanced Concepts, seeking to enable lunar mining and lower-cost access to water in space.

    Since any human missions to Mars would benefit from (if not outright require) large amounts of water (either split into propellent and oxidizer, used as radiation shielding, or even just for life support), do you feel that construction of such a device would be a net benefit? Why or why not?

    --
    Chuuch. Preach. Tabernacle.
    1. Re:Lunar Space Elevator by Anonymous Coward · · Score: 0

      That's ridiculous. There is plenty of water on Mars, usually just below the surface. There are much more serious problems to deal with such as radiation, low-G, perchlorates, cold, no atmosphere, etc.

    2. Re:Lunar Space Elevator by Anonymous Coward · · Score: 0

      No, really, that's a great idea. Let's use the water on Mars as fuel for getting to Mars. And radiation shielding for the spacecraft that gets us there. And for life support on the spacecraft too.

      Just one question. How do we get the water from Mars into space before we actually get to Mars? I suppose we could radio ahead to the martians and ask them to launch it for us?

    3. Re:Lunar Space Elevator by solartear · · Score: 1

      The first visit of the transport to Mars will not be crewed. If a cycler is used, why not fill it from Mars, which is easier than from Earth, and the infrastructure is already going to be built up on Mars anyway.

    4. Re:Lunar Space Elevator by Anonymous Coward · · Score: 0

      Perchlorates are an oxygen source. 4 of them, in fact. I don't see what you have against oxygen. Perhaps you should try giving it up.

  22. Mars One by NoImNotNineVolt · · Score: 1

    Also, all of you idiots posting about Mars One are just that: idiots. We're supposed to be asking him about colonizing mars, not about reality TV shows.

    --
    Chuuch. Preach. Tabernacle.
  23. What's the point? by StikyPad · · Score: 3, Insightful

    I don't mean this in a cynical, "why do anything," sort of way, but what exactly is the objective? Glory? No breathable atmosphere, no native food source, little to no natural resources, high radiation, and likely a very shortened lifespan as a consequence. Not to mention social isolation. Most explorers come back, and most migrants travel for a better life, so it seems like you are doing this wrong.

    1. Re:What's the point? by Rinikusu · · Score: 2

      Because it's fucking cool.

      --
      If you were me, you'd be good lookin'. - six string samurai
    2. Re:What's the point? by Anonymous Coward · · Score: 0

      Seriously, right? Give me something to kill and eat as tasty as a cow, and I'll consider it. Porcuswine maybe.

    3. Re:What's the point? by ortholattice · · Score: 1
    4. Re:What's the point? by StikyPad · · Score: 1

      Maybe in a "hold my beer and watch this," kind of cool. Like lighting fireworks off on your head. You'll get "cool points" until you're prematurely dead, and then everyone will just shake their heads and wonder what you were thinking, and you will be dead. That's Mars.

  24. The Martian by dmaul99 · · Score: 1

    Of course you have read Andy Weir's novel "The Martian", what did you think of it? Are you excited about the upcoming movie adaptation?

  25. How long till boot on surface of Mars? by painandgreed · · Score: 1

    Given Apollo level funding and political will (from the US and other involved nations), what do you think the major steps to getting to Mars will be and how long do you think it would take to actually put a man on Mars?

    1. Re:How long till boot on surface of Mars? by Tim+the+Gecko · · Score: 1

      The last footprint (so far) on the Moon came less than four years after the first. Can Mars exploration be more resistant to budget cuts than Apollo?

  26. new technologies? by painandgreed · · Score: 2

    What do you think the needed new technologies are left to develop, test, and refine to production models before we can perform a manned Mars mission?

  27. Is Mars for cows? by Anonymous Coward · · Score: 0

    Are you a cow? Do cows say moo? MOOOOOOOOO? MOOOOOOOOO? Moooooo cows MOOOOOO? Moo say the cows? YOU COWS??

  28. Really? by Anonymous Coward · · Score: 0

    In order to be viable, the International Space Station must pay for anything they need to import from Earth. Given that nothing on the International Space Station will be cheaper than on Earth ... zzzzz.

    1. Re:Really? by WrongMonkey · · Score: 1

      As a permanent human settlement the International Space Station is NOT viable.

    2. Re:Really? by thinkwaitfast · · Score: 1

      Most scientists argue that the ISS is not viable and provides little science knowledge with respects to its costs. Money that could be better spent on other scientific pursuits. The SCSC is one example. It would have been 20x more powerful than the LHC which has produced orders of magnitude more data than the ISS, but was cancelled to give money to the military contractors who built the ISS. The whole space spinoff thing is also a fabrication by people with financial incentives in the aerospace industry.

  29. Where's the kaboom?! by NoNonAlphaCharsHere · · Score: 1

    There's supposed to be an earth-shattering kaboom!

  30. Revolution? by wbr1 · · Score: 1
    One of the more interesting aspects of Robinson's books to me are the socio-political ones. Specifically, the fact tha Mars was a new place, with initially a very intelligent population, it came to be a place to rethink society and economics, in often painful ways. Also, there were attempts due to resource pressures on earth, of using it as an escape valve for human populations, which it could never completely be.

    Assuming we ever make it to Mars, do you see it as a likely spot to foment revolution? Do you see a presence there as being able to relieve or change issues here on earth? How so?

    What do you see as the primary reason we should go to Mars? I agree we should and have my own reasoning, but I want to know yours.

    --
    Silence is a state of mime.
  31. What are your thoughts on Venus? by mann17 · · Score: 3, Interesting

    Do you think it might be easier to colonize the upper atmosphere of Venus first? It seems there are several advantages to this approach (easier access to solar power, an existing magnetic field, close to earth-normal gravity). If Venus is an easier target, why not start there first?

    1. Re:What are your thoughts on Venus? by Anonymous Coward · · Score: 0

      The Sulfuric acid clouds and LACK of a magnetic field are the major issues, but if the the nastier compounds in the atmosphere could be removed it could be a nice place to colonize. Collecting resources from the surface might be a bit of a challenge as human exploration there is virtually impossible but it is possible it could be done remotely. Water is fairly rare on the planet as well but it could be possible to extract enough out of the atmosphere for colonization.

  32. Do you interact with AIAA SCTC? by Anonymous Coward · · Score: 0

    Hi Shaun,
    I am also a colonization proponent (and have a systems engineering paper and preso on a Space Farm suitable for Mars, 100 colonists+, at SPACE 2015 @ Pasadena CA in a few months).
    Question: Have you interacted with AIAA (American Institute of Astronautics and Aeronautics) and/or its Space Colonization Technical Committee? We are actively designing and working these same things, engineering solutions for colonies of various types.

    Bryce

    1. Re:Do you interact with AIAA SCTC? by TiggertheMad · · Score: 1

      These sorts of papers and documents are really interesting. Are there places that the are being shared out for public consumption and/or comment?

      --

      HA! I just wasted some of your bandwidth with a frivolous sig!
  33. who's payin by vpness · · Score: 2

    so I love the exploring attitude. This has parallels to early colonists to America. But my sense is a) that the costs to get there , are , adjusted for inflation, way higher. b) the costs to live there are even higher: you can't grown corn there, or hunt deer (tho granted, no Indigenous Tribes) c) that a lot of the explorers, whilst marketing as 'for the crown' were doing it for profit. So costs are way higher, comparatively, and, show me the money?

  34. Mars is 20 years away by k6mfw · · Score: 2

    For past 50 years, Mars has been 20 years away. In 60s, they say people will be on Mars in the 80s. In 80s, they say people will be on Mars in the 00s. Well it's 2010s and they say people will be on Mars in 2030s. Cmon you all, don't you see a pattern here?

    --
    mfwright@batnet.com
    1. Re:Mars is 20 years away by Mal-2 · · Score: 1

      Mars has always been 20 years away, provided the money is dumped into realizing it as soon as possible.

      In the 60s, there was a Cold War fueled space race going on, but all manned missions got aimed at the moon. After that, there was very little incentive to dump the resources into it. It probably couldn't have been done in 20 years with 1960s technology anyhow, and naturally both sides wanted to pluck the low-hanging fruit first. Mars is hard. Going to the moon and back is a cakewalk by comparison.

      Now it probably is possible to accomplish within 20 years given the current state of technology, and without dumping practically all the discretionary funding into the program, but it still needs large quantities of money -- and a stomach for risk and possible failure, something most government types are averse to. (They'll blow money, but when people start dying, it's all over.)

      The reason it's always 20 years away is totally different than the reason for fusion. Fusion throws up roadblocks all its own, no matter how badly we want it or how much time and money we throw at it. Mars hasn't changed substantially in the last couple billion years, let alone the last 5 decades.

      It's all down to the money.

      --
      How is the Riemann zeta function like Trump rallies? Both have an endless number of trivial zeros.
    2. Re:Mars is 20 years away by DerekLyons · · Score: 1

      Cmon you all, don't you see a pattern here?

        Yes.

  35. Terraforming Focus by Anonymous Coward · · Score: 0

    In your opinion is Terraforming a world that does not have a strong enough magnetic field to defend it's atmosphere from solar wind really a viable option or are enclosed/pressurized living spaces the a better long term use of the limited atmospheric resources of Mars?

  36. Surfacism - why Mars and not Venus? by Luminary+Crush · · Score: 1

    There are actually some compelling reasons to go to Venus first including cost and transit time but also more human-favorable gravity, greater protection from radiation and possibly the only other place in the solar system which currently offers temperatures and atmospheric pressures close Earth norm - albeit only at a 30-mile altitude. So, why not cloud cities on Venus?

    BTW loved the Mars trilogy - have you read 2312 yet?

    1. Re:Surfacism - why Mars and not Venus? by currently_awake · · Score: 1

      The resource useage is exponentially higher in cloud city. If you are planning a self sufficient colony (or close) you really don't want a flying colony, you want it on the ground. Yes the temperature and pressure are nice, but that's all it has going for it. If you want Venus, go underground. That takes care of the pressure and 2 meters of foam insulation and heavy duty heat exchangers deal with the temperature. You could put a spaceport in the clouds though, with a high pressure blimp to get you down to the ground after your flimsy rocket arrives.

    2. Re:Surfacism - why Mars and not Venus? by Anonymous Coward · · Score: 0

      It would be cool to go down to the surface in special constructs for an hour or so at a time to get raw materials....cool story idea....

    3. Re:Surfacism - why Mars and not Venus? by Anonymous Coward · · Score: 0

      Does underground take care of the pressure? Wouldn't the external walls of the underground complex still face at least the 80 atmospheres of pressure pushing down on the rocks above?

  37. When will we get there? by Anonymous Coward · · Score: 0

    What is your best estimate of when we will have a settlement on Mars? Do you think private industry (i.e. SpaceX) or NASA will get us there?

  38. Glorified Escapism. by Anonymous Coward · · Score: 0

    How is running away going to solve anything?

  39. How much infrastructure needs to be there first? by Dr.+Spork · · Score: 1

    Some people think that we should send someone to Mars as soon as possible, even if they can't do much before they return home. Simply leaving a human bootprint would be worth it. Others think that unmanned missions should first build up enough Martian infrastructure to support human "colonists" with a reasonable level of comfort. Only then should people be sent. Where would you put yourself on this continuum? What sort of activities should Martian astronauts be able to do before you would think the expensive trip there was worth it?

  40. and I think its gonna be a long long time by rossdee · · Score: 1

    And there's no one there to raise them if you didn't
    And all this science, I don't understand
    It's just my job, five days a week

  41. What aspects are *not* addressed? by Anonymous Coward · · Score: 0

    Subject says it---referring to the phrase "Almost every aspect of establishing a foothold on Mars is addressed."

    Thanks

  42. Nitrogen by Anonymous Coward · · Score: 0

    As I understand it, the Martian atmosphere is rather thin and mainly composed by carbon dioxide. In other words there's oxygen. Nitrogen, on the other hand, seem to be pretty scarce. How will a martian colony be able to expand without access to nitrogen? Will the first colony have to import nitrogen from Earth, or is there another way?

  43. Chocolate by penguinoid · · Score: 1

    Any chance a chocolate company will sponsor one of the Mars exploration/colonization missions?

    --
    Don't waste your vote! Vote for whoever you want, unless you live in a swing state it won't matter anyways
  44. Why Mars instead of building in space? by SoftwareArtist · · Score: 2

    Why colonize Mars instead of just building colonies in space? It seems to have many disadvantages and hardly any advantages. It's incredibly far away. You still have to deal with a large gravity well every time you want to come or go. You can't create artificial gravity on Mars, so you're stuck with 38% Earth gravity. We don't even know if humans can be healthy long term living in such low gravity. Colonies in space seem as good or better in nearly every respect. About the only advantage Mars has is access to raw materials, but space colonies could mine those from asteroids or the moon.

    --
    "I'm too busy to research this and form an educated opinion, but I do have time to tell everyone my uninformed opinion."
    1. Re:Why Mars instead of building in space? by Anonymous Coward · · Score: 0

      Totally agree, no idea why people want to go to Moon or Mars. I think it is much better use of resources to build better space stations first, create a foothold so to say in orbit:

      - it should be able to generate variable gravity (through centrifugal force to test which is the limits for humans to be able to live for long durations without causing permanent problems);
      - it should provide at least a few different foods grown on the station;
      - it should demonstrate good radiation shielding (be stationed outside of Earths magnetic field or able to travel outside it for long durations (at least 1 year));
      - it should be expandable in space without just attaching new modules (brick by brick so to say);
      - it should get most or all of its water / oxygen / fuel from nearby parked asteroids or comets;
      - it should get at least some metals or other materials for its expansion from nearby parked asteroids or comets;
      - it should support at least 50-100 personal / visitors at a time;

      When all or most of this is done, only then we should think about sending explorers and maybe building permanent bases on Moon and / or Mars and / or Venus. Otherwise it will be just another Apollo type expedition. IMHO.

      What is Shaun Moss take on this?

    2. Re:Why Mars instead of building in space? by Anonymous Coward · · Score: 0

      Going to Mars is kind of like discovering Americas before building ports...

    3. Re:Why Mars instead of building in space? by Anonymous Coward · · Score: 0

      I think the main reason to go to Mars and Moon and such is not science, but rather to claim territory. Maybe today no one can own anything, but in the next few decades it all is going to change, and being there first will allow US to claim the biggest piece.

  45. Radiation abatement: Rock, lots of rock. by TiggertheMad · · Score: 1

    I also assumed that burrowing would be a early colony strategy, as several meters of rock makes great radiation shielding. Also, you are going to want to start to bring mineral extraction and fabrication technology online quickly to minimize resupply needs. So, while colonists mine resources, they can be constructing habitat space at the same time. Has any thought been given to martian mining procedures? If there is or was frozen water in sub-soil permafrost, isn't there a good chance that if you go deep enough, you might hit a water table? If we drop you off on Mars, what is your dig plan?

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  46. Q: What are your thoughts on Venus? A: hot. by TiggertheMad · · Score: 1

    the surface temperature is high enough that you aren't going to do much there until you stop the greenhouse effect and cool down the planet quite a bit. It might be a great Terraforming project, though.

    One of the speculated effects of a large meteor striking earth is throwing large amounts of dust into the atmosphere, and cooling the planet by blocking incoming solar radiation. We can land on comets and such, so it is probably possible to land an engine or solar sail on a large meteor, and steer it into Venus's gravity well. It would give us some good (real) data on the effect of a large strike on Earth, and would be a fast and relatively cheap way to take a stab at terraforming a nearby planet. More cooling == more space rocks slammed into Venus at 17k MPH....

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  47. Near Earh Orbit. by Anonymous Coward · · Score: 0

    Why is Colonizing Mars a better idea than Colonizing near Earth Orbit? Or the moon? It seems to me that it costs less to make an orbital colony than it does to make a mars colonization ship. I reject any answer that involves resources, simply based on the fact that it should be fairly easy to get resources from the moon or asteroids.

    So, why is Colonizing Mars better than Colonizing near Earth Orbit, or the Moon?

  48. Follow the Nitrogen by Yergle143 · · Score: 1

    Engineers, space physicists and tech magnates are quite talented in delta V, derivative trading and the Lambert problem but are, unfortunately, very poor biochemists. In recent times there has been much excitement concerning extraterrestrial water and very little consideration of nitrogen -- the reduced form is literally the stuff of life.
    Given that 78% of the air you breathe is nitrogen, Mars has a paucity of 2% in its already tenuous atmosphere and that the Martian soil more closely resembles Clorox (TM) than anything what is your proposed Nitrogen source/budget? Note there is yet no evidence of vast subsurface nitrate deposits.

  49. Sustainability? by Anonymous Coward · · Score: 0

    How are we supposed to sustain humanity on another planet when we have not even figured out how to build a truly sustainable society here on Earth? What I mean by this is how do we really get the energy to power this habitat? How do we really take care of the waste? How to take care of the excess carbon production problem? Etc.

    There are so many factors that go into a stable and sustainable habitat and society and while we have been living on a planet that already had a fairly good grasp on this as a whole before we showed up, we as one component of that system seem very far from having this figured out and we especially have not figured out how to transplant this to another planet. Maybe we should start by making a fully enclosed and sealed off habitat in Antarctica, totally without need of resupply ships once going and then start dreaming of living on other places besides Earth?

  50. Re:How much infrastructure needs to be there first by currently_awake · · Score: 1

    The public loses interest after the first few trips. You must make visible progress to keep the funding going, or better yet start with a colony. If you do a "wave the flag" trip, that's likely all you'll get.

  51. Martian Atmosphere by dhenrickson · · Score: 1

    What do we think should be the composition and density of a Martian atmosphere modified to accommodate human life and a reasonable greenhouse effect and how long do we think it will last (given that Mars lost its original atmosphere)?

  52. Power satellites as a way to get to Mars by Anonymous Coward · · Score: 0

    Wonder what you think of Keith Henson's proposal to send the 100th power satellite (or an equal mass) to Mars?

    If they are built at all, the cost of lifting a kg to GEO has to get down to $200/kg or less.

  53. What about the toxic soil on Mars? by frank249 · · Score: 1

    Perchlorates, a reactive chemical and toxic to human is present in the soil on Mars. This will prevent the use of the soil for agriculture and will be hard to avoid as colonists will bring the dust into habitats. How do plans to colonize Mars deal with the presence of Perchlorates in the soil?.

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    Today's vices may be tomorrow's virtues.

  54. What is the truth? by Anonymous Coward · · Score: 0

    Was Schwarzenneger dreaming or did the mutant revolt actually win?

  55. What would it take to make us move? by Last_Available_Usern · · Score: 1

    What would have happen to Earth to make Mars look more habitable? And I'm not talking Earth-ending asteroids, I'm talking slower progression changes. What is the tipping point or scenarios where this would make sense?