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Manned exploration of Jupiter has been theorized in the HOPE mission to Callisto, from which Europa would be probed tele-robotically. This would avoid the worst of Jupiters magnetoshpere.
I haven't seen much data on the radiation environment of Saturn, or the rest of the gas giants for that matter. The radiation may make exploiting Enceladus more difficult. Really, one of the larger outer moons, like Iapetus would be just as good. It really doesn't make a difference fuel gathering wise if the water is frozen or not.
Jupiter is closer, thus more likely. And it would speed of developement of active radiation shielding.
Its not dimming, it just has way too much baggage and way too little funding and Presidential support. I know Bush has lots on his plate, but would it kill him to make more that one speech on it? The public would support it.
No one is out sourcing NASA. Was Huygens outsourcing?
I think that given how close they are, and the value of this mission, it will fly.
This is really our first trip to the asteroid belt, and once inside it we'll learn alot more about it as a whole on top of Ceres and Vista, which are really gateways to the outer solar system.
$1Billion would go a long way towards "lunarizing" the full range of regolithmoving, refining, and milling equipment needed to properly exploit all local resources. The sooner we can establish the full range of ISRU, the cheaper bases will be to build and expand.
This wasn't even outsourcing, all the people working there would still be American. The only thing that would change is the name on the paycheck.
I'd like to see American companies owning every step of the process as much as every other American. But the opposition, at least on capital hill, was the worst kind of hypocritical, policically motivated xenophobia.
As for outsourcing in general, the fact of the matter is our standard of living makes it impossible for us to competitively produce cheap plastic crap, and any other product that requires mindnumbingly boring repetetive tasks. If we want to compete, we have to fight back with technology, and beat cheap chinese labor with robots that don't need pensions.
I can believe these people would honestly rather be a little less securely employed than very securely unemployed.
Their more spoiled than the US auto unions.
Ports on the west coasts are own by China.
Its all election year politics.
Well the most effected foam would be well below the shuttle, but given our luck as of late it wouldn't surprize me if there wasn't an effect.
On timelines, 2033 is probably a bit optomistic even for Mars. Then again I envision an extensive lunar program and a series of NEO missions leading to a much more extentive series of missions to Mars in the 2040's range than the DRM. Foothold missions to the gas giants would follow.
I'm not sure how much mass your going to save by prepositionong, because your going to need every bit of whats on your transit craft on the surface, and then some. Your likely to need two or even three 500-600 ton craft to support all your surface habs, labs, farms and workshops. Plus IRSU equipment, and finally science packages for the other moons.
Disapproval ratings are a joke because they don't tell you want the country wants.
Remember the sole purpose of the CEV is a cheap, safe way to get 6 people in and out of LEO. The since the Moon is only 3 days away, it can also support 4 people for the 6 total days it takes to get there and back. To get from LEO to LMO, they have a transit craft.
Larger capsules will likely follow before we have a full blown space liner. But the CEV does what we need it to do for the immediate future.
I too want to see more long term planning. But the more pretty pictures you show the Congresscritters, the more dollar signs they see, and the more they balk. Perhapes there is a method to NASA apparent shortsided madness.
The real question is how far should the NASA program go, and when commercial interests takes over. No NASA program will ever answer all the questions we are going to have on a particular body. That would take decades.
I think we need to decide before we start exactly were we stop. Failure to do so could result in the situation we are in now: spending far too much money to accomplish nothing in particular. As much as loath the term, we need an exit strategy, so that we can move on to other places. That list of worthy targets seems to be growing by the day.
I think that level should be something I call global surface access. Basically, to build up the surface and orbital installations to the point were we only have to land people at one or two central locations, and from there can get to any location via surface transportation. On the Moon, these locations would of course be the poles, at the most likely locations for rocket fuel to send people home. From there we'd have to decide the best range we can get out of a pressurized rover, and place additional locations accordingly at particualarly useful sites. These secondary sites don't have to terribly complex, just the equipment needed to top off volitiles and power reserves.
Lets send John Young.
Hes not dead yet is he?
How about Hillary Clinton? Asumming it's a one way trip with insufficent life support and a nuclear thermal upper stage which is actually a mislabled thermonuclear device. (in the 20mt range)
Gee Purdue, why don't you tell us how you really feel?
Seriously, we should compare notes.
Well, its really just a painfull transition period. Were going (trying) from a noneffective and unsustainable manned flight program to an affordable, flexable, and outword looking one. I'm sure that people would rather go to places themselves than send a probe.
But the engineering on a manned program is a lot more complicated and takes longer to net returns. When it does of course the returns are so much greater.
And round the bend it goes... right on target!
Great job!
Radio black out...
Were all slewwed up and burning...
Here we go...
Fuel tanks pressurized, reorentating for burn, switch to low gain antenna.
So far so good.
If you can find the development money then by all means. But nothing I've seen indicates we can just park the shuttles in a hanger untill the CaLV is ready to fly.
Oh and I intended the cradle to be disposable. They are custom built for the modules.
Untill you have some place to go the number of boots you can put on the ground in one shot is more important than how fast you can get them there.
Concerning Titan vs Venus as a nitrogen source...
While it might require less energy to go from Venus to Mars, we can't readily access the surface, making construction of any large atmospheric structure a difficult floating import operation.
Titan doesn't have this problem. There’s everything needed to support on site construction and the population to run it. Any extra juice needed to escape the Saturian gravity well is readily available from several other moons that are more than half water ice, were we’ll probably set up shop as well anyway.
Please explain why "less energy to go from Venus to Mars"? The figures tell us other thing! Saturnian gravity well at Titan`s orbit is shallower than the Earth`s LEO( with ~4.5 km/s or more than 50% less) !!! To go out in heliocentric orbit from Titan`s surface needs less than 8 km/s. From Venus - ~ 10 km/s
From Venus to Mars you need extra ~15 km/s
From Titan to Mars you GAIN ~15 km/s
I was refering more to the idea that someone mentioned to use solar sails, which would get there from much less energy.
Just saying that the Saturnian system is much more furtile overall.
Yeah but its still only a matter of time untill some pretext is used to jack up the price because they are the only game in town.
As much of a waste of payload volume it might be, I think double barreling it would just over complicate things. First off, the CaLV is a non starter with the shuttle still flying. You won't have a shuttle to help. I think the best way to do it is to build a cartridge with as many of the modules and their shuttle like cradle that will fit, and to drive the whole thing right up to the port and dock. Any other connections can be done via space walk from the station. Then the cradle releases the module, backs off, and releases the cradle. Rinse and repeat untill your out of modules.
The big question is what peices can be deployed like that. The 4 truss segments are the only ones that I think still need the shuttle. The rest are cylindrical and should be perfect for the above method.
You really can't compare a cycler shuttle to even the most meager transit craft. A shuttle doesn't need to be anymore than a bigelow and tug for CEVs, which once lifted to the right orbit the CEVs can do the "last mile" easier. Over time its the best way to get large crews to Mars in fighting form. Sure, in time we'll have the engines to send people in 4 months in zero g in a 50ton craft, but they'll need help once they get there. Once that help is there then by all means. But in the mean time were better of taking our time.