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Galileo Amalthea Flyby Threatened
vince writes "The Galileo spacecraft will fly by Jupiter's moon Amalthea on November 5th. This is the *only* close flyby of this moon Galileo will make, but (as currently planned) it will not return any images, in order to save a paltry $1m - $1.5m. Looks like a grassroots campaign is going to be necessary to save the flyby."
Last time it tried to take pictures it shut down in failsafe, now there is a high probability it will do so again, in which case 1.5mil would be wasted, which NASA can't really afford.
"I don't know that atheists should be considered citizens, nor should they be considered patriots." George HW Bush
The probe cost over a billion to build and launch. Here we're talking maybe 1/1000 of that. All that money to build the thing, and now they don't want to shell out a little money to use it for what it was designed to do. And don't get me started on the price tags on ISS, shuttle flights, etc. -- it's outrageous.
Why are we building the International Space Station?
Good question. Personally, I think all current official justifications of the space program are pretty weak. The only long term goal of the space program is should be very simple. The eventual self-sufficient colonization of the rest of the solar system, and subsequently extra-solar planets.
The current justification for the space station is weak, it should be called what it is and the majority of the work should be focused on the end goal. Any additional science is gravy. The space station is a stepping stone, the next step is the moon. Which requires thorough robotic exploration in order to locate materials suitable for use in developing human habitation (food, water), spacecraft fuel, and building material.
From the moon you build and launch additional spacecraft for shuttling between the space station and the moon. You also build the craft for exploring, exploiting, and eventually colonizing other locations in the solar system.
Once we can self sufficiently colonize locations in this solar system, the next (and much more difficult) step is to find other solar systems to colonize. The first job will be finding systems with the raw materials for human colonization. Then, barring discovery of FTL, we will need to turn a large asteroid, or conglomeration of asteroids (i.e. icy, rocky, metallic) into a colonyship with a nuclear(fission or fusion) energy source, machines and equipment, and enough people to maintain a population for the lifetimes it will take to get to another system, and begin exploiting the resources available to do the same things we did in our solar system.
Can this happen soon? Not a chance, it is the project of multiple lifetimes. But, each step is simply an evolution of what was done before, and is definitely possible. The key to everything is the moon, it is a nearby source of raw materials with low gravity, launching stuff form the moon is a hell of a lot easier than from earth. Eventually, the only thing you would want launched from earth are people and light stuff.
Dastardly
Actually, small moons aren't interesting. Well, not in the same way and to the same degree as the Galilean moons. The Galilean moons are large enough to be spherical and to show geological processes and to hold on to trace atmospheres. That means there is probably much more to study with them than with the smaller moons, which have little geology aside from impact cratering. This is not meant to be a value judgement, merely an unfortunate pragmatic fact.
Mission planners also undoubted considered some basic orbital facts, here. The small moons of Jupiter are all either quite a bit outside the Gailean orbits or within Io's orbit. You might think you could sneak visits to the former as the probe swings out from or in to Jupiter on its very elliptical orbit. But ALL of the outer moons have signficant inclinations. The odds of meeting one of them near the equator of Jupiter is slight, given the number of coincidences you'd need. As for the inner moons (Amalthea, Phoebe, Adrestea and Metis), they're all interior to Io. This is actually very bad for Galileo. You'll recall that getting in as close to Jupiter as Io has causes problems, thanks to the magnetosphereic plasma. The farther in you go, the worse it gets. They're only doing this now because Galileo is well past its life expectency and beginning to fail anyway.
I find it ironic that you're plugging your anti-spam company in an off-topic post.
If it's for-profit but free, you're not the customer -- you're the product (e.g., the Slashdot Beta's "audience").
I agree!
I am sick of that space station sucking up all the science money.
It is the first black hole ever witnessed up close by humans. A money-hole that is.
Table-ized A.I.
Could someone please explain why it costs to 1.5mil for a satelite that's there already to send back pictures? This just isn't making sense to me... All they have to do is TELL it to take them, and I'm not sure how telling it to do so costs 1.5mil? I'm not doubting the accuracy of this, I would just really like to know WHY it costs so much...
One can't help thinking that it is a great pity that the question of one million dollars is going to block a 'photo opportunity' that might be otherwise be decades off.
It is true that Amalthea probably is a quite boring, small rock and there isn't much of scientific interest there but if we don't take the chance and get the data while we have a space probe out there then we mis opportunity to be surprised. Science involves a fair amount of "stamp collection" or "botany". A set of photos from Amalthea would fit in nicely here.
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virve
Imagine a time, possibly in the near future, when humanity is able to overcome our petty differences, savage warfare, and all that which keeps us from truly growing as a species. When you're done laughing, take a minute to clean the Dr. Pepper off your monitor, and think about what would happen if, in a state of relative world peace, humanity embarked upon a mission to colonize our solar system and beyond.
We already know that we live on one of the best sources of heavy metals in our region of the solar system, at least until mining operations on Luna (or possibly Mercury) can be established. We've already sent out many satellites to explore the inner and outer solar system, with sizes varying from a small car to a large school bus. Think about the amount of heavy and precious metals used for the construction of these satellites. Think about how much gold, silver, silicon, iron, and other rare metals were bought by our tax dollars and shot into space. (Don't be outraged just yet -- the satellites served their intended purpose, and gave us good science and some really cool pictures.)
Now, let's list some of the most likely places where humanity can colonize and expand:
As the list goes on, none of these places are known to have any serious deposits of heavy or rare metals. Given that most of the colonists' heavy and rare metals would probably have to come from Earth (and be pushed out of our deep gravity well at enormous expense) and be carried to their eventual destination, shouldn't we at least try to re-use an existing object of heavy and rare metals in the area? Wouldn't it make sense to save Galileo for this future colonization time, with the intent that we humans could scavenge it for its valuable parts and heavy metals?
Perhaps the imaging devices and optics, though old, could still work and serve as a near-field camera or for some other purpose. The computer circuits could be saved for their silicon, gold, and other elements. The nuclear power plant would probably not be too radioactive by the time we got to it, so there's some nice lead and uranium/plutonium for the taking. Even the frame of the spacecraft could be melted down and reformed into something useful. I'm sure there isn't much refined steel, titanium or aluminum just floating around, waiting to be picked up by us humans. Sure, we could start mining the asteroids, but that'd take time and lots of work.
Just because Galileo has surpassed its original mission lifetime and survived for additional scientific purposes doesn't mean that we should waste it completely by dropping it into Jupiter. The giant planet already has 317 Earth-masses, and it really doesn't need any more. Plus, if we drop anything in there, there isn't any way we are going to get it back.
My suggestion is to put Galileo into a comfortable parking orbit around Ganymede or Callisto, and maybe let it continue to operate, snap a few random pictures once in a while, and report on the Jovian system. Then, after it stops functioning and we can get out there to colonize, we'll have a nice starting point towards a space station, or raw materials to help build a Jovian moon colony.
Thoughts?
Super ninja monkeys will one day rule the world!
The parent of this is Insightful? That's pretty funny as all he does is launch an adhominem attack.
Dude, I mentioned my company (which if you check the website isn't even fsck'ing open for business yet) to establish "context". You'll probably learn about it when you get into high school. (see, adhominems are fun!).
My original comment may not have been interesting, but it certainly was *not* offtopic. The article was about money for christs sake.