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Billionaires and Polymaths Expected To Unveil a Plan To Mine Asteroids

dumuzi writes "A team including Larry Page, Ram Shriram and Eric Schmidt of Google, director James Cameron, Charles Simonyi (Microsoft executive and astronaut), Ross Perot Jr. (son of Ross Perot), Chris Lewicki (NASA Mars mission manager), and Peter Diamandis (X-Prize) have formed a new company called Planetary Resources, and are expected to announce plans on April 24th to mine asteroids. A study by NASA released April 2nd claims a robotic mission could capture a 500 ton asteroid and bring it to orbit the moon for $2.6 billion. The additional cost to mine the asteroid and return the ores to Earth would make profit unlikely even if the asteriod was 20% gold."

54 of 531 comments (clear)

  1. A bad idea that "sounds good". by suso · · Score: 4, Insightful

    A study by NASA released April 2nd claims a robotic mission could capture a 500 ton asteroid and bring it to orbit the moon for $2.6 billion. The additional cost to mine the asteroid and return the ores to Earth would make profit unlikely even if the asteriod was 20% gold."

    And when the mission makes a mistake and an asteroid goes plummiting into a major city it will cause trillions of dollars in damage and massive loss of life and potentially create a cloud of dust that will cause an ice age.

    I'm sorry, but no, this isn't a good idea. If you don't even have the technology to completely destroy an asteroid yet, then you can't fully control it and shouldn't be trying to "bring it to orbit". Maybe the first team will succeed because they have the smarts, but then when its shown to be profitable, the morons will get involved with fresh VC, etc.

    1. Re:A bad idea that "sounds good". by 0123456 · · Score: 4, Informative

      The space shuttle has a mass of around 100 tons and is very fragile. A 500 ton asteroid would have a much better chance of surviving re-entry, but then you'd just have a 500 ton rock. We've got plenty of those already.

  2. "Even if the Asteroid was 20% gold." by olsmeister · · Score: 5, Insightful

    Do they understand what this would do to the price of gold (not to mention platinum and palladium)? Most of the gold bugs make themselves feel good about their investment with the mantra 'you can't print gold.' It's trading in the stratosphere as it is, and the Wolfram Alpha link in TFS uses the current commodity price of gold.

    1. Re:"Even if the Asteroid was 20% gold." by Larson2042 · · Score: 4, Informative

      They're not going to have the 20% gold problem, anyways. If you had bothered to read the study, you would have known that the asteroids targeted would be C-type, which are full of useful volatiles and organics that can be turned into handy things like water, and hydrogen, and oxygen (which also happen to be pretty good rocket fuels). Any asteroid mining isn't going to be returning stuff to earth. It's going to be using it for other purposes IN ORBIT. That's where the profit comes in: you don't have to launch 500 tons into lunar orbit at today's launch prices.

      Plus, that 2.6 billion cost estimate was for a "Prime contractor design, test & build based on NASA-provided specs" with NASA insight/oversight. I'd be willing to bet that a wholly private effort could do a similar mission at a cost quite a bit less than that. (I would also point you to the NASA study that stated the cost difference between SpaceX's Falcon 9 and a NASA developed Falcon 9 was more than half.)

    2. Re:"Even if the Asteroid was 20% gold." by netsavior · · Score: 3, Interesting

      Horribly inflated? By what measure?

      It seems to me that gold is sitting at the intersection of the supply and demand curves.

      The primary driver of the high gold demand is artificial (Man made/imaginary role as a parking space for power/wealth). In this case the LACK of supply is what drives demand, and for that reason any large influx of gold would have a much larger influence on price than a simple supply/demand market. Gold is not "used up" in that we have far too much gold on Earth for the current prices if only aesthetic and industrial applications are taken into account. It is rare and it sits there, take away either of those properties and it is not useful anymore.

  3. Asteroid Defense? Orbital Construction? by Fippy+Darkpaw · · Score: 3, Insightful

    First, there are other uses for an asteroid in orbit with thrusters on it. Namely, ramming comets or asteroids on a collision course with earth. Second, why bring the resources to earth? They can be used for orbital construction.

  4. Re:It's even dumber than that. by gl4ss · · Score: 5, Insightful

    the point of the plan is that it is possible.

    not that it is profitable right now, but that it is a possible backup plan to get resources(ore) should we need them in the future.

    why does that matter? to shut the fuck up people complaining that we will run out of mineral X in 20 years and all civilization will be doomed because of that.

    overly right wing? I think my opinion on this is left wing, actually.

    another thing is that we wouldn't necessarily want the resources to be dumped back to earth just to shoot them up to space again, but use them in space.

    --
    world was created 5 seconds before this post as it is.
  5. Ohhhhhh! by mbadolato · · Score: 5, Funny

    Ross Perot Jr. (son of Ross Perot)

    Thanks for explaining that; we would have never figured it out on our own!

    1. Re:Ohhhhhh! by immaterial · · Score: 3, Funny

      Having the same name doesn't automatically mean you're related. Just ask my friend Michael Bolton...

  6. Awesome by chuckymonkey · · Score: 5, Insightful

    If this does nothing else but push the science of rocketry and space travel further then I'm all for it. If they succeed though, I can't wait to see what comes next. Haters be damned, I love that people still want to explore and see what's out there. You can't move the species forward by taking no risk at all.

    --
    "Some books contain the machinery required to create and sustain universes."-Tycho
  7. Scientists are naive by daemonenwind · · Score: 4, Insightful

    You only make a small part of the money involved in capturing an asteroid on commercially-viable minerals/metals like gold.

    What people will pay for a space rock is way more important than what people will pay for gold. A 500 ton asteroid could be 500 tons of rock. But that would make millions of lumps of Space Rock that could be sold by The Franklin Mint in a special collectors set.

  8. "Even if the asteroid was 20% gold" by Larson2042 · · Score: 4, Interesting

    The study wasn't talking about mining the asteroid to return the material to Earth! The asteroid mass would be used to generate water, hydrogen, and oxygen (primarily) for use IN ORBIT, where it is far more valuable than returning x amount of minerals back to earth. It would also be used as a test bed for advancing mining tech, becoming more efficient, and driving down the cost of the next operation.
    However, long term, it could very well end up being economical to return materials to earth. If any initial effort at mining of materials that are useful in orbit succeeds, then there will be an existing industrial base for mining asteroids, and the incremental cost of the next one will be less. As mining methods are refined and become more efficient and the industrial capacity in orbit expands, it becomes possible to create more and more of what you need in orbit instead of launching it from earth (which is where much of the expense comes from). Then, when all you have to do is turn the less valuable parts of an asteroid into shipping containers, load it with the more valuable stuff, add an electric propulsion system, then it might be worth returning stuff to earth.
    But the bottom line is that mining asteroids is going to be most useful for getting lots of useful material in orbit (be it lunar or Lagrange points or whatnot) without having to go through the process of getting out of earth's gravity well.

  9. Re:It's even dumber than that. by shiftless · · Score: 5, Insightful

    What are they going to find on a rock in space that is not already available on THIS rock in space?

    I dunno, maybe........resources that are not on this rock? i.e. in its gravity well?

    Why does the bulk of humanity always have to be dragged kicking and screaming into the future?

  10. Compared to the moon by Beryllium+Sphere(tm) · · Score: 5, Informative

    To use lunar resources you have to land and take off in a gravity well. Distance matters much less than delta-V for space operations.

    Asteroids are differentiated. Some are mostly pure nickel-iron. Never heard of that being available on the moon.

    1. Re:Compared to the moon by poly_pusher · · Score: 4, Informative

      The moon has been shown to be composed of materials that are very similar to the earths crust and the moon has not experienced nearly the same level of volcanic activity of the earth. The earths crust does not contain very many resources. What resources is does contain comes from that volcanic activity. In other words the moon is not a good candidate for the resources we desire.

    2. Re:Compared to the moon by rednip · · Score: 3, Interesting

      Never heard of that being available on the moon.

      We barely know anything about what's available on the moon. However, as the moon has millions of years of asteroid strikes and as it doesn't have an atmosphere to burn things up, more of their material is likely concentrated where they landed, I suspect that the riches are just waiting to be stumbled upon.

      It might take years of exploration to find a great asteroid as we know even less about them and how to get to them than the moon. Gravity on the moon is very, very weak and launching is fairly easy in terms of fuel and as 'step 2' of their plan is move the target to orbit the moon, it might even be 'cheaper'. The fact that it has gravity is a bonus as everything that we know about mining and processing minerals is rooted by a gravity well, and a moon colony could produce fuel and cargo containers.

      That being said, the effort to find and move asteroids is certainly a worthwhile skill, but it'd be far more likely profitable to mine the moon.

      --
      The force that blew the Big Bang continues to accelerate.
    3. Re:Compared to the moon by poly_pusher · · Score: 5, Interesting

      We know quite a bit about the moon. It's composition is eerily similar to the earths crust. This discovery lead to a recent theory that the moon is the result of a planetary collision that blasted crust material off the early earth. The moon also is believed to have had a somewhat active core early in it's development. Remember that with a body of significant mass such as the moon, heavy elements are going to be pulled towards the core and be frozen there as the core cools. As for asteroids that have struck the moon, their materials have been reduced by impact. There will not likely be as concentrated of a source do to material being lost/scattered by the intensity of the impact. The moon is not likely a very resource rich rock.

      However, a concentrated Nickel-Iron asteroid as one other poster mentioned could be very lucrative.

    4. Re:Compared to the moon by symbolset · · Score: 5, Insightful

      You want to mine the moon? Fine. Gather up some money and go mine the moon. These guys, they want to go get an asteroid. It's their money. It's not like they're asking you to pay for it.

      --
      Help stamp out iliturcy.
    5. Re:Compared to the moon by russotto · · Score: 5, Funny

      What resources is does contain comes from that volcanic activity. In other words the moon is not a good candidate for the resources we desire.

      Unless we crack the sucker open like an egg and suck out all the goodness from the center.

    6. Re:Compared to the moon by Enigma2175 · · Score: 4, Insightful

      Why wouldn't there be a vein of iron ore on the Moon? There are veins of it on the Earth.

      The moon doesn't have veins of iron ore because it doesn't have an atmosphere that contains oxygen and never experienced the Great Oxygen Catastrophe, and thus does not have the banded iron formations which is the source of almost all the minable iron on the earth's surface.

      --

      Enigma

    7. Re:Compared to the moon by ceoyoyo · · Score: 4, Interesting

      Actually, a lot of Earth's resource rich areas are... ancient large asteroid impact craters.

    8. Re:Compared to the moon by Confusador · · Score: 5, Insightful

      I think a lot of people are used to space being a government endeavour. When it's NASA/ESA/JAXA/etc it's perfectly natural for the public to have an opinion, since it's their money being spent. It'll be interesting to see what happens as more private ventures move into space, and don't have to answer to a majority.

      Not that it will stop the comments, of course. We certainly hear enough opinions about what Apple and Google should do.

  11. Re:Third: threaten to bring the whole thing to ear by shiftless · · Score: 3, Funny

    Great, now we're going to have an asteroid arms race. The U.S. and India will be threatening to crush Germany with a huge rock if it doesn't capitulate to their demands and cease "construction" of its own "weapon of mass destruction" aka their own huge orbiting rock.

    Welcome to the brave new world of tomorrow....

  12. Re:It's even dumber than that. by jamstar7 · · Score: 5, Insightful

    Well, you know what they say in real estate: Location, location, LOCATION.

    I'm thinking they don't want to bring 'Mineral X' down to Earth unless it's in ton lots. What they want is, the materials right where they are, in space, where they will provide materials to work with in space. Yes, it could take $2.6 billion to bring a random 500 ton asteroid to lunar orbit. It would cost over 10 billion to launch that 500 tons into orbit at the current guestimated going rate of $10,000 per pound. What can you do with 500 tons of materials in orbit? Lots of things. 500 tons of very high grade iron ore, the purity of which we haven't seen on Earth in almost a millenium, would make the basis for the frame of a decent sized space station. For comparison, the ISS at full buildout is about 37 billion plus overruns and weighs in approximately 450 tons plus about 13 billion so far in supplies etc to date. Grabbing a carbonaceous asteroid could offset some of that 13 billion on the 'next-gen' space stations, when we learn to 'convert' that carbon into foodstuffs in space.

    Sure, we'd need to put a smelter assembly in orbit to refine the metals & scavange the carbon/etc from any asteroid, but add a machine shop as well, adn we can duplicate the factory complex and build out from there, at ZERO boost from Earth costs. Again, why would we want to send asteroidal material to Earth when we need it so badly in space?

    --
    Understanding the scope of the problem is the first step on the path to true panic.
  13. Re:It's even dumber than that. by Chris+Mattern · · Score: 5, Insightful

    What are they going to find on a rock in space that is not already available on THIS rock in space?

    Raw materials that aren't at the bottom of a gravity well.

  14. Meanwhile by skipkent · · Score: 3, Funny

    A committee has asked Michael Bay to make a film depicting the worst case scenario of this project.

    1. Re:Meanwhile by robably · · Score: 5, Funny

      Michael Bay making a film IS the worst case scenario.

  15. Re:Ownership Rights by artfulshrapnel · · Score: 4, Interesting

    Even under the most strict (and asinine) interpretation of international property claim laws, this would fall under salvage rights. The rocks are unowned and set adrift, and nobody can make a decent claim to ownership. Therefore any person who reaches them first is entitled to collect whatever salvageable goods they wish.

    The real question will be whether they're allowed to make a claim to the asteroid to keep someone ELSE from mining it once they do the gruntwork of getting it in orbit. That could become a real barrier to growth in this area, given that current international laws prohibit any nation from laying claim to an astral body.

    I suspect without a change in laws we'll start seeing wild-west style ownership take place in space, in the form of jammers and guns. "It's ours, because if you send a spacecraft here to take it we will shoot you down or disable your probe."

  16. Re:It's even dumber than that. by poly_pusher · · Score: 5, Insightful

    Actually that is completely incorrect. Many asteroids in the solar system have been shown to contain as much iron ore as has been mined in the history of human industrialization as well as many other exotic and precious metals that are very rare on earth. There are many reasons to consider mining asteroids. It is actually a very important step in the progress of our society. When we stop stripping the earth of resources and move both extraction and manufacturing off our own planet we have a huge opportunity to sustain the quality of our environment, develop lower cost means of transporting materials on and off this planet because there is a financial incentive, and access exotic materials that are increasingly part of electronics.

    Remember, most the metal in this planet is below the crust. The metals we do have in the crust is from the lower levels of the earth squirting little bits out every now and then. An asteroid does not have that problem.

  17. No no, they got it all wrong by Dogbertius · · Score: 4, Funny

    This is to prevent a new ice age. We simply mine big chunks of ice off of Halley's comet and drop it into the ocean every 75.3 years. That should keep us going until 3003.

  18. Re:It's even dumber than that. by Ihmhi · · Score: 3, Insightful

    Exactly.

    First, on the marketing side... let's say that gold from an asteroid has a slightly different chemical composition than gold from planet Earth. IANA geologist, but you can tell (chemically) where a diamond came from, so wouldn't you be able to tell whether gold came from an Asteroid or from Terra Firma? Either way (chemical signature or not), they can bring down a few hundred tons of "Space Gold" and Debeers can tell husbands that only the men who really love their women will buy space gold at a 500% markup.

    Secondly, what if they can pull in materials that are a bitch to find here? It is possible that it might be easier to dump something from orbit rather than try to hunt it down and dig it up on Earth.

    Lastly, this is necessary prep for the future. As the parent post said, it's kind of necessary for eventually working in space. It'd be way easier to mine and refine metals out in space for a moon base or space station than it would to bring everything up from Earth.

  19. Re:It's even dumber than that. by jamstar7 · · Score: 5, Insightful

    I cordially invite you to do the math on transporting raw materials in space versus boosting said raw materials from Earth. Two of the people most interested in investing in this venture each have probably more smarts than the two of us together, and they think it's a good idea, or they would have blown it off,

    The 'We Only Need Earth' religion DEMANDS we do everything from Earth, that there are no exploitable resources offworld. They would have had each and every settler from Europe to San Francisco to pack every single gram they needed in supplies and tools plus the entire vehicle used to get across the ocean, all the way from Europe to San Francisco. At those kind of costs, nobody would have ever left, which suits the 'We Only Need Earth' crowd just fine, thank you.

    I've been told a famous man once said 'The meek shall inherit the Earth'. That man was spot on. The rest of us are going to figure out a way to go to space and make it pay.

    --
    Understanding the scope of the problem is the first step on the path to true panic.
  20. Re:It's even dumber than that. by Sperbels · · Score: 5, Insightful

    We fear change. It's a survival characteristic.

    It's also a survival instinct to move on to new territory when your tribe has grown too large and you cannot distinguish yourself from the other males as a suitable mating partner.

  21. Re:It's even dumber than that. by symbolset · · Score: 3, Insightful

    I'm just going to go with the idea that the people involved didn't come to be some of the most successful people on Earth through being crazy or stupid.

    --
    Help stamp out iliturcy.
  22. Re:It's even dumber than that. by artfulshrapnel · · Score: 5, Informative

    Don't forget about real-estate. A 500 ton asteroid would have nearly as much interior space as the ISS, so all you have to do is hollow the thing out (selling the resulting materials of course) then seal it, brace it, and bolt on some air tanks and maneuvering thrusters. You've constructed the world's roomiest space station!

    Also, the water content of those meteors is worth a fortune in and of itself. Ice chunks + solar powered electrolysis = rocket fuel worth a minimum of $10,000 per pound by virtue of not needing to be launched with the ship.

    What do you want to bet this asteroid retrieval system will be configured to use a hydrogen/oxygen engine of some kind? They could refill and relaunch it off the first asteroid for a fraction of the original launch costs!

  23. Re:It's even dumber than that. by Sperbels · · Score: 3, Insightful

    Large, impractical, grandiose, ridiculously expensive symbolic gestures?

    It's a better idea than invading other countries for resources. Probably less expensive too.

  24. Re:It's even dumber than that. by blubadger · · Score: 4, Insightful

    Why does the bulk of humanity always have to be dragged kicking and screaming into the future?

    Your "future" seems to be somewhere around 1970. Today's challenge is not how to find and use ever more resources, it is how to use and re-use the existing ones without making the planet unliveable. Given the current context of impending climatic and ecosystem breakdown, mining asteroids is nothing but an outrageous red herring.

    I continue to be astounded by the number of "technologists" in this forum who appear stuck in an almost Soviet mindset of science, where the future is all mining and flying cars and space exploration. It's as if you haven't noticed the last 30 years of scientific advance and all the new constraints that humanity must now work within.

  25. Re:Huh? by Snausagez · · Score: 3, Funny

    Haven't you seen the movie where we mine the moon and it ends up breaking apart and crashing down on our heads?

  26. Re:It's even dumber than that. by russotto · · Score: 5, Insightful

    Your "future" seems to be somewhere around 1970. Today's challenge is not how to find and use ever more resources, it is how to use and re-use the existing ones without making the planet unliveable.

    This is an impoverished view which will lead to nothing but stagnation, decline, and ultimately extinction.

  27. it's the constraints of the world by mbkennel · · Score: 4, Insightful

    that lead to stagnation, decline and extinction if humans don't get sufficiently wise and active about mitigating them.

    _Wish upon A Star_ works in Disney movies. Mother Nature is unimpressed.

    1. Re:it's the constraints of the world by rtb61 · · Score: 3, Insightful

      If we don't get off this rock, we will follow the path of the dinosaurs or even worse. Whether by interplanetary impact or a hugely destructive solar storm or a disastrous disease mutation etc.

      On this world we live in borrowed time and probability will catch up to use sooner or later, suck it up, extinction is inevitable when you are bound to a planet, it is just the way of things.

      So reality, why worry about the abstract notion of an asteroid they capture crashing into the planet. They have got so much else to do before they even get there, leaving basically decades to discuss the issues. Getting into orbit cheaply being the first issue. Low cost space stations next (obviously capable of far more than just asteroid mining). Accurately mapping and scanning surrounding asteroids, your doing far more than scanning suitable for mining ones, that level of scanning could map every single high risk of impact asteroid. Then there is the non-nuclear shifting of the orbit of the asteroid, that some propulsion method would get as cheaply around the solar system.

      You know what really pisses me off, narcissistic fuckwits wasting the planets resources on supercars, mansions, mega yachts, jewellry etc. etc. etc. all those wasted resources, all that pollution for what. Seriously what the fuck are those morons proving, how big a pollution pushog they can be or being the winner in the race to be the most wastefully useless arsehole on the planet.

      Those resources being spent on expanding the future of humanity seems a whole lot wiser than using to try to feed the insatiable ego of psychopathic arse holes.

      --
      Chaos - everything, everywhere, everywhen
    2. Re:it's the constraints of the world by rtb61 · · Score: 4, Interesting

      Long way off, seriously where were we in 1912, where were we in 1812. The leaps humanity has made in two hundreds years have been enormous. Just look at computing in the last 25 years, in fact if it wasn't for computers you could say the last thirty years were wasted in bloated stagnation of adulation of psuedo celebrities and the rich and greedy or own little utterly pathetic and pointless dark ages. A mini dark age that the internet is lifting us out of by spreading the truth and exposing the lies.

      --
      Chaos - everything, everywhere, everywhen
  28. Cart before the horse by blubadger · · Score: 4, Insightful

    Well, I see that I'm outvoted by incurable, irrational techno-utopians.

    I too am optimistic, as it happens. But only cautiously so – not recklessly, like you people are. Given humanity's past, there is no reason to believe that we can't rise to the current environmental challenge. But we're taking our time seeing the problem, as evidenced by this frivolous chat about mining asteroids. Right now the world a half-century hence is looking a scary place, and even in the best-case scenario a lot of permanent damage is going to be done to the biosphere. If and when we solve this problem – mitigating the effects of consumption rather than finding resources for more of it – then we can perhaps start thinking about mining asteroids. Until that point, you are putting the cart before the horse.

    I have a strange feeling you don't even know what I'm talking about, that we're not even on the same page here. That's sad, because I'm talking hard science, and the solutions will come largely from hard science too. They include energy tech, biotech and all kinds of innovation in farming, town-planning and architecture. They don't include mining asteroids.

  29. Not that easy unfortunately by sjbe · · Score: 3, Informative

    Also, the water content of those meteors is worth a fortune in and of itself. Ice chunks + solar powered electrolysis = rocket fuel worth a minimum of $10,000 per pound by virtue of not needing to be launched with the ship.

    The economics are nowhere near that simple. Let's say you have a big store of rocket fuel up there and ignore (for a moment) the cost of obtaining it. Then what? You still need payload which mostly has to come from Earth and the key processing equipment which also has to come from Earth. You haven't escaped the cost of the launch, you've simply added to the complexity and thus the cost.

    Then there is the problem of actually developing the technology to mine and process these resources. We don't have industrial scale factories that are space worthy. Even if we did, they still have to be launched into space. We don't even have anyone working on them because there is no reasonable prospect of a return on investment. To get financing you have to have a product you can sell back here on earth and there is very little prospect of an economic return in the reasonably near future. Most of the economic benefits to the private sector are indirect ones (spinoff technologies, etc) for the foreseeable future.

  30. Re:It's even dumber than that. by dbIII · · Score: 4, Informative

    let's say that gold from an asteroid has a slightly different chemical composition than gold from planet Earth

    It looks like US science education has jumped the shark. Notice he didn't write isotope so there's no excuse there, and there's nothing wrong with his written English which indicates at least a high school graduate if not more. Maybe we need to get bands to wear those periodic table t-shirts on MTV or something.

  31. Re:Huh? by ceoyoyo · · Score: 3, Funny

    The problem with the Earth and moon is that yes, they're big and there are lots of resources in them, but all the ones we're really interested in are heavy and thus concentrated at their cores. It's tough to get down there.

    Asteroids, on the other hand, are small and their cores are readily accessible, not that you need to do that because they're not differentiated like planets and big moons are. Although if you do mine one from the inside out, when you're done you have an awesome space castle.

  32. Re:It's even dumber than that. by symbolset · · Score: 5, Interesting

    You're right about the water. But a 500 ton asteroid is about 7 meters in diameter. The linked pdf is really neat - it's got a lot of interesting details. Once you build it into a space station, yeah, then it'll be as big as the ISS.

    You are correct about the hydrox fuel also, sort of. The first one has to be Xenon, but they did figure they'd need about 40 tons of LH2/LO2 to bring back 1000 tons of asteroid that is about 40% water. So successive trips can be done with LH2/LO2 once you've got a boat and some fuel, and of course if you can use part of the asteroid itself for fuel.... With LH2/LO2 you can also bring back much larger asteroids. Or you can go down to the moon and get unlimited water from the moon's poles at that point. It becomes an energy problem only, rather than both a materials and energy problem.

    I've been thinking about Ceres. That one is entirely covered in ice (more water than all the Earth's oceans). If you're refining water into rocket fuel all you have to do is get your gear out there and Ceres has the fuel for the return trip. The upside is that we don't have to find it. We know where that one is. The DAWN mission is about to go out that way. (am not talking about bringing back the whole minor planet, just some water). Surface gravity is just .03g, so landing and blasting off is no big deal. The downside is that it's not a near-earth asteroid so travel time is a drag. But there's no limit to how much water you can bring back.

    Once you have an unlimited fuel depot in orbit around the moon though you can do some really neat things. Manned craft only have to get to LEO, and can be met with the rest of the fuel they need to go anywhere in the Solar system. Things like habitat modules could be lifted to LEO, where they're met by robot rockets that can move them into whatever place we want them. Not having to launch with all the fuel, water and air for the whole trip opens up everything. Maybe some robotic gardens or something could be arranged as well. That would be really cool.

    I'm getting very excited about this project. I am told that the project is for real, though the other stuff above is speculation.

    --
    Help stamp out iliturcy.
  33. Re:Typical 1% Bullshit by ceoyoyo · · Score: 3, Insightful

    Stupid.

    Ask the 1% what they would do with $2.6 billion and they'd say "invest in some hedge funds, HFT companies, etc." These guys want to do something that a) generates more actual wealth and b) advances our capabilities as a species.

  34. Re:Steel mills are rather heavy by thomst · · Score: 3, Interesting

    sjbe sneered:

    No, instead you have to lift all the (non-existent) processing equipment instead. Are you under the impression that a steel mill is somehow not very heavy? Of course none of this technology is being developed because even if you did get it into orbit, you need a product to return to earth to make the financing possible.

    Man, do you think small.

    First off, judging from the composition of meteors found here on Earth, iron asteroids should mostly be composed of nickel-iron alloys. The percentage of nickel in the two most common components, kamacite and taenite, is MUCH higher than that found in most steel manufactured on Earth. Meteoric iron is highly corrosion-resistant and extremely durable, and it needs NO smelting to turn it into construction materials - it's pure enough to build stuff with straight from the sky.

    It WILL need to be MELTED, so that it can be formed into girders, sheets, pipes, and so on, but that's actually trivial. The Earth/Moon orbit receives more than enough sunlight to use as a heat source. Simple parabolic mirrors made out of aluminized Mylar will do the trick. Yes, presses, rolling mills, stampers, and crucibles designed to work in microgravity environments will be necessary, but the hardest part of the task is the Bessemer process - and that's a skippable step.

    As for needing to deliver a product to Earth to make a profit - nonsense! Why send it to Earth, which already has lots and lots of iron, when you can use it in space to construct stuff like an orbital shipyard and drydock facility, true SPACE ships (i.e. - ships designed to operate only in space, and never to touch down on a planetary surface at all), orbital habitats, factories, and labs, and so on? How much do you think Planetary Resources can charge for building a spacecraft capable of reaching Mars?

    Finally, everyone in this discussion seems to have fastened onto NASA's 500-ton asteroid thought experiment as the size of the rock PR will attempt to lasso. I think you're all thinking too small, again. If they can capture a 500-ton asteroid, why can't they grab a 5,000-ton asteroid? It'd take a little longer to coax it into a useful orbit, but the same technology that would allow capture of a 500-tonner should be scalable to one 10X that size - and that would provide a helluva lot more raw material for in-space construction purposes.

    PR is a MAJOR braintrust with some extremely big bucks behind it. I suspect they've thought this through a lot better than you or I have.

    Regardless, we'll find out exactly what they're proposing to do on Tuesday.

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    Check out my novel.
  35. Re:It's even dumber than that. by bryan1945 · · Score: 5, Informative

    Or we could, you know, do both. Radical idea, I know.

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    Vote monkeys into Congress. They are cheaper and more trustworthy.
  36. SpaceX's costs by WindBourne · · Score: 4, Insightful

    Just 6 years ago, many 'experts' claimed that SpaceX would never get off the ground. Likewise, if they DID get off the ground, they would have higher launch costs than all of the other subsidized nation's launch systems.

    Yet, here we are.

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  37. Re:It's even dumber than that. by TheRaven64 · · Score: 3, Interesting

    Less government regulation on mine safety and pollution? Probably going to be a problem once they start trying to deliver tons of rock from orbit, although possibly people trying to deliver tons of rock from orbit are in a strong negotiating position...

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    I am TheRaven on Soylent News
  38. Re:It's even dumber than that. by TheRaven64 · · Score: 3, Informative
    Plutonium is rare because it is the heaviest vaguely stable element (meaning that only trace amounts were created in the star exploded to create the elements that form our solar system and because its most stable form has a half life of 80 million years. The latter means that around 57 plutonium half lives have elapsed since the sun formed. That means that about 7x10^-16% of what was formed initially still exists. To put that in perspective, if an amount of plutonium equal to the total biomass on the Earth had been formed, there would be 1g left.

    Or, to put it another way, if there had originally been a quantity of plutonium equal to the mass of jupiter formed, then there would now be somewhere around double the mass of the great pyramid in Giza left, scattered all over the solar system. That amount is a pretty optimistic estimate, especially if you exclude any that ended up in the Sun as irrelevant.

    In fact, if you assume that all of the matter in the solar system except the Sun was originally plutonium, then that still only gives you three times the mass of the great pyramid in Giza (about 1.8x10^7 metric tons) of plutonium left, scattered all over the solar system. Imagine if you took the great pyramid, ground it up, and scattered it just over the Earth's surface - even if it had the energy density of antimatter it probably wouldn't be worthwhile to find and collect it. If it's scattered all over the solar system (meaning most of it will be inside large masses, and most of it inside Jupiter), it's not going to be even remotely energy positive to find it.

    Or, for the TLDR version, even assuming that there is vastly more plutonium around than there is actually likely to be, it's still not even remotely worth harvesting.

    In future, please try not to assume that just because people have an understanding of the workings of science and the limitations of (current) technology, and don't treat it as a magical solution to all possible problems, that they're anti-technology.

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    I am TheRaven on Soylent News
  39. Re:Hardcore math time. by FatLittleMonkey · · Score: 3, Insightful

    then you do not have a grasp of how far away the asteroids are.

    If you: a) Think that all asteroids are in the belt between Mars & Jupiter. And b) think of space in terms of distance, not fuel/velocity/energy. Then you don't understand enough to comment.

    --
    Science is all about firing a drunk pig out of a cannon just to see what happens.