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JoshNH4H wrote:Before I go there, though, I want to mention something that should be number one on everyone's wish list for the Moon (Or Phobos, or both): A fuel-less launcher. If we're using the Moon primarily to make fuel, it's incredibly wasteful, both in terms of energy and production capacity to burn half of it (or potentially more, depending on the fuel) just getting there. It doesn't make anything impossible or not viable as Zubrin has said, but it does make it less cost-effective. A railgun with a connection between the rails and the payload made of plasma would be very energy efficient and pretty simple to build. You could conceivably get away with one that was a kilometer long (acceleration would be very high, as would power consumption, but the potential benefits are astronomical, if you'll pardon the pun). You could make the rails out of iron or aluminium, and incorporate the plasma generator into the device.
Well, in regards to fuel-less launchers, I would say that a space elevator seems like the obvious answer. First, it's actually doable on the moon with present day materials (IIRC, kevlar would do). And maybe with a little bit of thought devoted to it, you can manage to provide most of the mass through ISRU means (Basalt fibers, off the top of my head, jump to mind). Not so much with railguns, which are quite complicated pieces of technology with very tight margins and exotic alloys all over them (if not for the rails themselves, then for the electrical stuff that goes with them). A space elevator is mostly cable (>90% by mass), so just an automated cable factory and you can import the rest.
Also, even if you have to provide the same energy to the payload, you do so over hundreds of thousands of kms instead of one, which lets you use much simpler methods like solar panels (using either sunlight or beamed lasers) driving electric motors, and subjects the payloads to pretty much zero stresses. Humans might get bored, though...
. Furthermore, unlike a railgun a space elevator is a conservative system, so you could actually pay the electric bill by importing as much mass as you export. Or turn a profit if you bring more stuff, but that seems less plausible (what do you pay it with, and where do you bring it from).
Oh, and there's also the facts that you can park things in a stable orbit without onboard propulsion systems, unlike pretty much any other method of launch. Just drop things at GLO, or the few suitable altitudes. To launch to earth or somewhere else you can't get away with such dumb payload, though, but that's a problem no matter what you use. All in all, railguns seem more suited for other applications. Like naval warships, or pitifully small gravity wells with little or no rotation (you know, 'cause then an elevator can't provide much free delta-v).
Rune. Happy "itsmybirthday" everyone!! And "nochebuena" tonight!!
Well, re lunar tourism, at a price tag of $10,000 per kg, $20 million gets you 2000kg - that's a lot of mass I think for a 14 day trip I think. Of course, I would accept there will be some big capital costs at the beginning, but once you've got your 500kw PV panel facility up there with the habs and the rovers and so on, well then that sort of price tag will generate huge revenues. I think maybe the cost per person would actually be closer to $5 million. The multi-million price tag could definitely fall once the tourism industry becomes routinised. I don't think it's unreasonable to suppose the figure might fall eventually to $1 million - you're then getting closer to "world cruise" territory.
We should remember that the tourist shuttle will also be carrying cargo. I think the Moon will be perfect as a cemetery for cremated remains and as a location for Valentine Day messages. No doubt there will be lots of other products and the lunar regolith, minerals and meteorites will also realise substantial sums, especially in the early years. There will also be luxury foodstuffs and other products produced.
http://science.howstuffworks.com/spaceshiptwo2.htm
Virgin Galactic, which I think is the best guide, claim to have 80,000 people on their waiting lists - with a price tag of $200,000 (though that is expected to fall). I think on that basis we could envisage perhaps 8,000 people per annum being able to stump up for the lunar trip at a cost of $1-$5 million. Anything between $8 billion and $40 billion.
I think space elevators are way in the future and shouldn't concern us now. Now, the way to do it, is the Musk Method: cheap and cheerful rockets.
Lunar insitu materials used to make solar cells...
http://sbir.nasa.gov/SBIR/abstracts/05/ … SBIR_05_P1
http://www.macrovu.com/image/PVT/NASA/R … lrC.v3.pdf
http://www.sspi.gatech.edu/insitu_resources.pdf
The power incident on the Moon from the Sun is 1.36 kW/m2. Even with a solar cell of
10% efficiency ( <_ typical terrestrial), significant power could be generated on the Moon
(1 square kilometer ~ 1.36 gigawatts).
Those are all proposals and they haven't got to grips yet with the key issues of deposition - which on earth seems a pretty sophisticated process requiring sterile conditions.
I am all in favour of developing automated robotic mining, but it will be a tricky business.
The moon we should not forget is very close to the Earth. If it's lunar tourist industry can pay for imported PV Panels, I am not sure the effort of ISRU is necessarily worth it. It's not the same situation as on Mars where I think the argument for ISRU is much stronger. The experience with tourism on Earth suggests that tourism centres, like say the Caribbean, simply import the more sophisticated technology.
I think for the Moon I would recommend a slower path to ISRU.
The main focus should be on getting lots of people to the Moon, building up permanent settlements.
Louis, practicality and legality are two different things. It could be profitable - but only if the government lets it, which may not be the case...
The trouble is, countries are liable for any mission launched from their territory - if a dodgy rocket from Australia hits New Zealand, Australia get's sued, rather than the company involved. This also would imply that resources appropriated by a company would be considered to have been appropriated by the country it is registered in, which isn't allowed. Possibly. I'll have to look into this.
I dealt with these objections on the other thread - Space X or whoever can register with one of the smaller signatory countries (say Panama or Liberia - places that already provide flags of convenience for ships) and idemnify them with a bond for which commercial rates would be made. The bond fee might be $100M per annum but a lunar tourism project could cover that easily. The real risk of public idemnity from conventional rocket launches (as opposed to satellites or the flawed Space Shuttle) must be close to zero I would say. It's not like the early days of rocket launchs. As long as you are launching them over the sea, the risk is very small and private insurers would be willing to take on the risk.
Appropriation of resources is quite different from a claim to ownership of the land surface.
Hmmm, but I still hope we can Munchkin away the problems without having to go to all that effort... if the treaty won't change, and so international law remains diametrically opposed to space colonisation, we may have to, ah, become "wanted fans" and colonise the universe without the backing of the homeworld (note: this means a lot of steam- and atompunk). As soon as the colonies reach an appropriate level (Lunar mining, basic spacecraft production, farms, and most importantly, families), we may need to fire our rockets, premature as they are, to survive the legs being kicked out from under us by an oppressive Terran government. We could hopefully get most of the infrastructure up their by stealth, and not just personal allowances - the University will need to be well stocked with tools to "repair" it's Lunar transports, as will the hotel, and the retirement home will need a very good hospital I'd think. The place will of course need to be self sufficient in the bare necessities. Just how much can we stretch the treaty before it snaps back?
Now, anyone know which billionaires would invest in such a venture that will probably fail from a business standpoint but hopefully prevail in it's true mission?
I have absolutely no doubt that a lunar development will be wildly profitable.
I think there is every prospect of a billionaire funding such a venture. Well Richard Branson is getting close with Virgin Galactic.
Lunar tourism will generate billions of dollars of revenue.
Certainly but it is a copy of an old new scientist from 11 years ago. The proposals have been around that long. Japanese comapnies even want to turn the whole Moon into a power station to beam microwave power back to the Earth.
The University of Houston proposed the idea and even went so far as to testing it in a vacuum chamber. We would simply ignore the first stage and put a full refinery onto the Moon as one of the first things we did.
The question is, what does our industrial seed mass in at?
That is the question we need to be able to send enough capacity to be able to tool up our operations on the Moon.
So just what will we need to send. Some form of brick maker to create structures that we can put our industrial capacity in to protect it from the massive changes in tempatures on the Moon. The ability to actually harvest regolith and to break its properties down and to then seperate metals and volatiles apart. Some means to develop more harvesting and construction capacity the list goes on.
There is no reference in your link to the rover having been built or the process having been trialled in a simulated lunar environment, which I thought was your claim. I don't think anyone has yet demonstrated this as feasible.
http://www.state.gov/www/global/arms/tr … pace1.html
How will this affect attempts to colonise space? Would a company wishing to, say, develop Lunar fuel resources have to register in a country which is not a signatory? Presumably, the treaty is only binding on countries which have signed and ratified it (and not all have). I'm certain there will be quite a few island nations that will be happy to have millions of pounds pumped into their economy, although powerful countries such as America could make trouble for any company which offers launch services from it... or any organisation which wishes to buy fuel from the Lunar Development Corporation.
Aaargh, why did the "international community" have to screw everyone over?
If it wasn't for them we'd have no nuke ban
We'd have cities on Mars and still have Project Rover
When I finally get up there I'll be a wanted fan.
This was discussed on another thread recently. I see no problem with a signatory nation authorising a corporation to exploit resources on the Moon. The main problem is that it will be difficult to create land ownership rights. But there are plenty of examples on Earth of resources being exploited in the absence of land ownership rights e.g. there used to be whaling stations on Antarctica.
You only want to base to last 5 years? We need to keep growing our power supply, and, at least in the beginning, ISRU power is going to be difficult.
BTW, here's a link about radiation damage - http://www.soton.ac.uk/~solar/cells/spacesolarcells.htm
Louis, at the poles sunlight shines almost horizontally. It's basically a sunset which never manages to set, instead moving around the horizon. The solar panels are going to have to be straight up almost, as well as rotating to catch the light. That's no show stopper, far from it - a regolith filled base and inflated framed would mass quite low and allow the solar panels to be suspended quite high off the surface, and rotate. But I don't know how much mass we'll be looking at for our power, and numbers like that are what I'm interested in.
Remember, the first export is going to be fuel. It's best to not get ahead of ourselves when it comes to developing Luna. Later missions are going to bring along what we need to industrialise (incidentally, I reckon you'd only need 4-5 flights of FH, if you had copious amounts of Lunar fuel, to set up a colony AND mine Phobos for fuel).
I'm not daunted by the technical problems. It's the OST that gets in the way... I can just imagine some greedy little country suing for a cut of the profits, and an international court awarding it to them. I suppose the only way to get around that is to do what they did in Fallen Angels, and declare independence if and when that happens, regardless of readiness.
No, I want to maximise the industrial infrastructure from day one. The way to do that is to get the most efficient energy infrastructure up there from the beginning. I don't deny there is radiation damage, but obviously one needs to balance a number of desired outcomes: efficiency, low mass, long lifetime. I don't think any of us have got all the necessary facts to hand, but clearly the greatest needed for imported energy facilities is in the early stage of the colony, so I think long lifetime is less important than efficiency and low mass.
If you are taking the equipment to track the sun with your PV panels, you are adding a huge, huge mass burden. Why bother - there will be plenty of very steep inclines which will be perfect for PV film. With enough film you can cover all angles.
What's OST??
One of the single greatest advantages of the Moon is the very strong sunlight, but without an atmosphere or strong magnetic field we will get hit by very strong flux fields. Our best solar panels also tend to have less resistance to all that they will face and a long constant life is much more preferable than a short very active life.
On the Moon we can make solar panels that though guite inefficient by what the standards we use the simple amount of energy available and the very cheap method of manufacture makes them the best choice on the Moon. It is this ability to keep growing the energy supply without needing major supply from the Earth that will develop the lunar economy.
But just laying them flat on the ground invites them to be covered in dust and also to be in shade. Simple local manufactured A frames resting boards of these solar panels makes there connection to the electrical grid and general maintenance easier.
I couldn't disagree more. Energy generation is the one great advantage we have in solar system exploration; the problem of mass is our one great disadvantage. It therefore pays in the initial stages to run with the most efficient system in terms of both conversion and energy density (as long as it delivers on reliability and flexibility of course).
I agree the aim should always be to begin developing ISRU energy asap but I am not sure manufacturing PV panels will be that easy, as opposed to manufacturing metal reflectors and steam boilers (or Sterling engines).
I never suggested laying the PV film "flat" in the shade to pick up dust kicked up by colonists!! I think we would be laying the film out on rocky hillsides using bolts to fasten the film (under tension).
What's wrong with that. There will be a huge mass saving. Doesn't matter if it only lasts 5 years.
For the same reason we don't use inflatable solar panels on space stations and the like - atmospheric dust (though I dread to think about the dust that the panels would attract elecrostatically...) isn't the only problem. There's also radiation damage, which is normally dealt with by the atmosphere...
At the poles, you can't just lay the solar cells out, you have to hang them on something to get the sunlight.
Have you got any citation for that? Radiation damage is not going to be affected by encapsulation is it? But maybe I am wrong...?
I don't see any problem with stretching the PV film between bolts drilled into the mountainsides, with tensors pulling the film tight.
There may be some loss of function from dust damage, but I think it will be slight. Or rather, I await evidence to the contrary.
Terraformer wrote:Only if it's abundant enough... bear in mind we need at least around 15MJ/kg of fuel produced, so we're already looking at 100kW of initial power to get the barebones system up and running (after which we can bootstrap the infrastructure, since nearly all payload will reach it's destination). 200kW would be good to aim for. I reckon we could get that into 10 tonnes
Hi Terraformer, Merry christmas by the way.
The Suns energy at the Moon is about 1358 watts a square metre. Our best solar panels tend to give about 25% efficiency that gives a lot of power. One other advantage on the Moon is structural stress due to gravity is a minor issue, structures there can be held up on very thin poles. So if we develop a lander weighing about 5 tonnes that once its solar panels are deployed gives us about 75KW that should be enough to start base operations. We do not need these for shading simply a mesh with attached bags of regolith will be lighter (and cheaper) to install.
If we have a base design of power lander we can simply keep sending these and increasing our bases power supply as we need it. Of course we will also be using an automated system to produce solar cells out of the regolith but these will be a lot less efficient. Still the very large farms we can make out of these and the ability to create mirrors to keep these panels in light will make up for that inefficiency.
The area where we believe there are volatiles tend to be conveniently near the peaks of constant light. These peaks may be very rough but if we can access them we will then have the ability to create constant solar power to our bases.
The PV panels used by NASA are now on about 40% efficiency. Cost is of little concern in comparison to the overall mission cost.
Another point - as there is no weather on the Moon, I see no reason why thin film just can't be laid on rocky parts of the Moon - no need to encapsulate it and add mass that way.
Yes, these are two different problem areas. For Mission 1, as I have indicated I think robot pre-landers could manufacture methane so that an ISRU resource is available when the humans arrive.
I'd say - as we see with the Mars Rovers, that PV Panels do not require a hugely complex infrastructure and can be deployed immediately. A nuclear reactor (unless placed in a mobile vehicle - in which you have more tonnage) will require a period of deployment.
In terms of what humans can manufacture on Mars, they should be able to produce polished aluminium or steel reflectors.
I think reliability can be an issue with sterling engines - well that's what I've read, which is why I tend to think in terms of steam engines. However, sterlings can be quite small scale, so I can imagine the colonists building a series of small such engines. I think with Missions 1 and 2 the colonists will be experimenting to see what they can produce and how easily. Of course they won't be doing everything by hand - they will have taken with them sophisticated furnaces and metal working equipment.
I don't know about the efficiency figures. It's probably quite complicated. For instance, as far as I know all electrical equipment produces waste heat - but that "waste" heat will be very useful inside the hab, to heat it. (The hab will likely be insulated with v. effiicent aerogel, so we won't need huge amounts of heat energy.)
I don't think photovoltaic panels would be such a good idea, at least initially for Mars because of their mass. The panels would be light enough but you would have to choose between landing at the martian poles or bringing massive fuel cells or batteries. To store enough energy for night time usage, you have to double the amount of panels you bring. The distance from the Sun means that panels have to cover far more surface area than if they were near Earth. This mass all add up.
I think a small nuclear reactor for base load power would be far more flexible. This guarantees a minimum power supply day and night. This can then be supplemented and expanded with solar panels without the need for massive batteries.
Mars can have horrible global dust storms and I think this is a greater risk to the crew using solar than the use of nuclear when you look at the odds.
By the time we actually execute a Mars mission, there may be much greater breakthroughs in batteries making them lighter and store more energy. But thats not something that can be counted on any more than the warp drive. I think a mix of nuclear and photovoltaic makes more sense overall.
So you are relying on one integrated system for the whole of your energy supply? You're not taking a spare? Just the one reactor. Have reactors never ever gone wrong? That's certainly a high risk strategy. I think you need to have at least two full size reactors - in which case your mass benefit is lost.
And aren't you going to be exploring the planet. What with? You mention solar panels, but if you are going to run a rover, power drills and keep people alive, you are going to need a lot of energy. In other words, you will have to take a lot of panels anyway.
As for chemical battery storage, I don't think we need to go over the top. Nightime heat storage doesn't require chemical batteries - rocks and water will do. You don't need to run washing machines, electric cookers or other major juice-users during the hours of darkness. For longer term storage we should use methane (produced during the day from water and the atmosphere).
The panels aren't so very different from those on Earth - it's about 40% IIRC. But remember - these panels will be absolute top of the range - far more efficient than your average panels on Earth. They will probably be comparable with the panels put on houses on Earth.
Yes there are global dust storms, but experience with the solar panels on the Rovers shows they never perform at less than 20% of clear conditions, which will be more than enough to maintain all essential systems. With methane storage (possibly beginning before the human landings, using a robot operation), there will be no lack of power.
I have two big points to make about the costs of spaceflight, manned or unmanned.
One is the impact of a small supporting logistical tail, vs the traditional gigantic one. ULA supporting the shuttle at a billion dollars (or maybe more) for 25 metric tons max per flight is the wrong approach. Spacex at $2500/lb on Falcon-9 is more like it. Atlas-5 is similar, but watch that cost rise if something happens to Spacex! That gigantic entity of Boeing plus Lockmart requires a lot of cash to feed it. Too big is just plain bloated.
The 53 metric ton Falcon-Heavy is supposed to fly next year for the first time, priced at something around $800-1000/lb. With that coming to the market, why do we need a NASA SLS at billion-dollar shuttle prices and only 100-150 tons? We know how to dock and assemble in orbit now.
The other big point is the type of lead agency and contractors that can support such endeavors without exploding overruns. We don’t have that, and it kinda shows. What we have done for half a century since Sputnik is the wrong way to do it. It’s not about flag-and-footprints, it’s about real exploration.
I gave a paper on that very topic at last August’s Mars Society convention in Dallas, Texas. You can find that paper online at the Mars Society’s site, in its electronic archive. Or you can read a version of it on my blog site http://exrocketman.blogspot.com. Scroll down to the paper at date 7-25-11 titled “Going to Mars (or anywhere else nearby)”, and see also my second thoughts about the backup scheme, in the article dated 9-6-11 titled “Mars Mission Second Thoughts Illustrated”.
The gist of the exploration definition is getting the answer to two deceptively-simple questions: (1) what all is there? and (2) where exactly is it?
That wording is not Texas slang, I meant it exactly as written, word for word.
It means you land and you dig deep and you drill very deep. Drilling kilometers down, perhaps. You have to do this in a lot of sites, too. A real planetary survey. We never even did that on the moon, so we still don’t know what is really there, even today. And none of 4 decades’ worth of robot landers has actually answered those questions for Mars.
The gist of the “right team to do it” question is that the NASA we need is not the NASA we have, and the contractor base we need is not the contractor base we have. If we had the right team, we could go to Mars at any time for under $50B, and make dozens of landings in one trip. The right contractors would look more like a Spacex, an XCOR, or a Scaled Composites. I still don’t see any credible agency or entity to lead it, not in the US, nor in Europe or Japan. Japan may come the closest, but still misses the boat by a wide margin.
It would take too long to justify all these assertions here. I suggest you look at my convention paper, or at the two cited blog site articles.
There is a third idea in the conversation thread here: reusability. Implementing reusability in one form or another is a lot less effective than reducing logistical tails, toward reducing spaceflight costs. It’s also a very tough technological nut to crack, but it can be done, at least for lower stages.
There’s a third article on my blog site, dated 12-14-11 and titled “Reusability in Launch Rockets” that addresses what might be most fruitful things to attempt.
GW
I agree with most of what you say GW and will take a look at your articles.
For me NASA should be more of a consultant and coms provider for a Mars Consortium led by Space X and including a range of Space Agencies (including perhaps a new US space agency for Mars and Lunar Exploration).
I do wonder about drilling down...we know now that the likelihood of Mars microbial life is quite high. I think we need to be careful about digging below the surface. In searching for such life forms we will probably need to proceed very slowly and carefully.
It may be a case of who's using who here.
louis wrote:I am not sure how familiar you are with commercial practice. Really what you say about the state being responsible would be no impediment to a Mars Consortium. All they have to do is indemnify the country concerned and put up a bond to back that indemnity. For example Panama would authorise the Mars Consortium to operate in Outer Space and could require the Consortium to indemnify it to the tune of say $10billion for the period of agreement - let's say 10 years. Panama requires the Consortium to get a bond for that and the Consortium has to pay say 5% for that = $500 million. The Consortium in turn borrows the $500milion over 10 years, paying off the loan at perhaps something like $100 million per annum for ten years. In the context of a Mars Mission,paying $100million per annum for effectively a licence to operate would be no problem. Panama would no doubt get various benefits from having the Consortium's offices located in its territory.
Very sure. Yes you could launch rockets from Panama but just like you can launch ESA rockets from Kourou. But what do you do with them.
Panama cannot grant you the right to mine metals in space for profit, no country can, only an international body (the UN) can. And there are costs the UN body that allows mining for minerals in the sea extracts billions from the only company willing to try and that then is put to use across the world.
I have been wanting to change the outer space treaty for many years now. It was perfect to stop the space arms race but it now is not fit for purpose. The trouble is that it still stands and there are very many organisations and countries that will stop such changes.
Can you point me to where the Outer Space Treaty says that only the UN can authorise mining in space?
That is a bit unfair, I think. When the 90 day study was prepared (and it was prepared in only 90 days!) the advantages of aerocapture, ISRU, etc, were not fully appreciated (or even properly thought through). We knew much less about Mars than we do now, and had none of the experience in long duration spaceflight or orbital assembly we have now.
Well if I was being too harsh I think possibly you are being too generous. I did go through their lists a few years ago, and however you cut it, a lot of the tonnage allowances were extravagant. I am not convinced re your point about orbital assembly - Apollo used orbital assembly for the return leg. It wasn't a technology beyond the technology of the 1970s.
I think that costing was well and truly put to bed here several years ago. No one I know has taken it seriously for a long time. Probably $50 billion as an upper limit is closer for Mission 1(including one time development costs).
When you hear how it was put together, it beggars belief. Essentially they went to each department and asked "How much money do you want for your bit of a Mars mission?" and then added up all the figures. That might have been appropriate for the Apollo era, but it was absurd to do that in the 70s/80s.
This reference seems to support Josh's view:
louis wrote:Grypd - I wasn't arguing that the Moon Treaty will NEVER become part of international law - I was simply pointing out you were factually wrong to claim that most states, including the USA, had signed the treaty. You haven't admitted your error, but that's your affair.
As we know from flags of convenience at sea, state registration can mean very little in practice. It wouldn't of itself be a brake on commercial development.
Sorry Louis we are at crossed purposes here. I was stating that most countries have signed the Law of the sea and yes i agree that they have not signed the Moon treaty. What im trying to show is that in international law the precedent has been set (They signed the similar law of the sea treaty and of course the outer space treaty) and since there is no treaty currently standing that repudiates the Moon treaty its has a lot of weight in international law. It is classed as common heritage status and as such only for use for the benefit of all mankind.
I honestly hope the Moon treaty does not become international law. The other thing is that you have to note about flags of convenience is that it will not apply to space. Any accident etc will not be the private company that gets the bill to fix it but the country. All missions even if from a private source are designated as belonging to the country that sent the mission. It is the countries responsibility to register that mission with the UN and it is the country that has the fiscal liability. The normal flags of opportunity states cannot afford that liability. That is article VI of the outer space treaty.
OK - your grammar was at fault then!: "The Moon treaty is by its nature more or less a law of the sea for space. Most countries including the USA have at least signed that treaty ."
Now you've clear up the "treaty" in the second sentence did not refer to the "treaty" in the first, I fully understand what you are saying but don't agree with you since that is a leap that I don't think has ever been attempted. The moon is land not sea. Any precedence would relate to land on Earth,not sea on Earth. I'd like to see your citation for your interpretation.
I am not sure how familiar you are with commercial practice. Really what you say about the state being responsible would be no impediment to a Mars Consortium. All they have to do is indemnify the country concerned and put up a bond to back that indemnity. For example Panama would authorise the Mars Consortium to operate in Outer Space and could require the Consortium to indemnify it to the tune of say $10billion for the period of agreement - let's say 10 years. Panama requires the Consortium to get a bond for that and the Consortium has to pay say 5% for that = $500 million. The Consortium in turn borrows the $500milion over 10 years, paying off the loan at perhaps something like $100 million per annum for ten years. In the context of a Mars Mission,paying $100million per annum for effectively a licence to operate would be no problem. Panama would no doubt get various benefits from having the Consortium's offices located in its territory.
If regolith from Mars can make so much money, why haven't we had a sample return mission yet? If they retail for $1k/g ($1 billion/tonne), a Mars Sample Return Mission should pay for itself easily.
Perhaps the market isn't there?
NASA have never formally abandoned the "free for humanity" approach to space missions and only NASA up until now have the wherewithal to get to Mars. ESA also appears to follow a "free for humanity" approach. Very laudable, but possibly this approach is holding up development.
I never claimed that a Mission could realise a billion per tonne ( I was illustrating what a $1000 per gram would be worth, so people understood). I think $200 million per tonne for two tonnes is more likely for regolith/meteorites/precious metals and stones ($400 million in total). But of course one can add on: commercial sponsorship ($300million?), sale of TV and film rights ($300million?), sale of first mission artefacts ($50-100 million?), sale of TV appearances, exclusive books etc ($100 million?).
You've got to remember individual art works have sold for hundreds of millions of dollars; Liz Taylor's jewels went for over a hundred million.
How much do you think it costs a university to mount a geological or botanical expedition? How much to build a new telescope? Remember, also, most universities get public funding as well - they have the money to spend on science-related projects. The idea that regolith won't seel is I think preposterous.
I don't think Missions will be able to pay for the initial capital cost. However you cut it, I think you are probably in for $10billion -$40 billion for the overall project spread over maybe 10 years. However, I think they could cover operating costs thereafter.
GW Johnson wrote:Once somebody has actually been to Mars the first time and brought some rocks back, I kind of doubt that Mars minerals will remain as valuable commodities. It's a perception thing.
I would say just like moon rocks have been...government owned and not in private collectors property vaults as they did not go and get them....So how did any become sold?
The up front cost to send men to mars, keep them alive all comes out of the collected sums for any return ore or refined metals.
How do you know some slivers - like the Luna 17 specimens weren't given to some notables on retirement?
Anyway, we certainly have reliable costing for Mars meteorites - their value is indeniably stratospheric.
Not sure what you mean by "collected sums". Obviously if you have revenue, then you can use that to fund capital developments such as building MTVs.
louis wrote:From the Space Review article:
"The United States, the Russian Federation (former Soviet Union), and the People’s Republic of China have neither signed, acceded, nor ratified the Moon Treaty, which has led to the conclusion that it is a failure from the standpoint of international law.2 "
But that is the first part of the article and it goes on to show just why the belief that the moon treaty is failed is wrong.
I think the key point that everyone understands is that none of the states on Earth should claim parts or the whole of celestial bodies as their own. That says nothing of course about companies operating there or indeed colonies establishing their own effective statehood.
And no private company is treated as anything but as an agency of the Goverment it is registered to. Certainly the PRC and Russia have stated as such.
Grypd - I wasn't arguing that the Moon Treaty will NEVER become part of international law - I was simply pointing out you were factually wrong to claim that most states, including the USA, had signed the treaty. You haven't admitted your error, but that's your affair.
As we know from flags of convenience at sea, state registration can mean very little in practice. It wouldn't of itself be a brake on commercial development.
actually - I do feel we are in a post-Zubrin era, even though he had plenty of good ideas. I think we are now in the Musk era of the human to Mars effort. I hope and trust it is the final era before we begin the story of men and women on Mars.
I guess it went Von Braun, Mars underground, Zubrin, Musk historically.
A new edition - I couldn't get it at a major London bookshop back in 2009, and that surprised me.
You know - I've had another thought about this. I believe we are about to move from an era when space travel seemed incredibly difficult to one where colonisation of our distant cousin planet begins to seem quite straightforward. Wherever I look I see the problems falling away. I really think we have cause to be very optimistic about this. Things are going to look very, very different in ten years' time one Space X have shown they can get to Mars robotically - and pretty cheaply as well.