Funding Approved for Pluto/Kuiper Probe 224
azpenguin writes "While we discuss the acheivements of the now-silent Pioneer 10, Congress has apporved funding for the "New Horizons" mission to send a probe to Pluto and the Kuiper Belt. Space.com has the story here. NASA had actually fought the idea, but Congress approved the money anyway. Wonder if in 12 years (when the probe is supposed to reach Pluto) the public will be as fascinated with the pictures coming back as much as with the Pioneer and Voyager spacecraft."
In related news, dalewj writes "Seems the team at JPL will
discontinue operations on
the Galileo Space probe to Jupiter after
extended the mission
three times. Galileo has been in space since 1989 and has some amazing
findings and pictures available on the
JPL website. Truly NASA and JPL's best effort to date."
Did I Read That Right (Score:5, Funny)
Re:Did I Read That Right (Score:2, Insightful)
Re:Did I Read That Right (Score:5, Insightful)
That's from the article. No mentioning on NASA's web site yet.
In the light of recent Shuttle disaster, NASA is perhaps more keen on getting money to improve safety on Shuttle missions. Just guessing...
Re:Did I Read That Right (Score:2)
Congress is probably doing this to boost morale after the shuttle disaster, and NASA has other priorities.
Yep. (Score:2, Interesting)
(Also, a lot of people in NASA and the community would rather do the mission using nuclear electric propulsion, since the mission would arrive at Pluto much more quickly. But, that technology is not expected to be mature until the end of the decade.)
Last year planetary scientists drew up their "Decadal Survey [aas.org]" which is basically a list of planetary exploration priorities for the next decade. (Congress wanted the list, and will probably consider it a "checklist" of what they should fund for the next ten years.) It's subject to changes based on new findings, but it gives a good idea of what scientists want to focus on. They did eventually decide to include this mission on the list. But, they didn't name it the "Pluto-Kuiper Belt Explorer;" they named it the "Kuiper Belt-Pluto Explorer." Kuiper Belt objects in general are considered important, and Pluto stands out merely because it's the largest of that population of objects.
If you'd like to get a feeling for what planetary scientists want to fly over the next few years, skim that documents. There's some very cool plans in there.
- A friendly neighborhood astrophysicist
Re:Did I Read That Right (Score:3, Interesting)
Or... (Score:3, Insightful)
Then again, the public might already be bored with the pics from the probe sent to Pluto in 10 years, with a vastly superior propulsion system which gets it there in one year
Re:Or... (Score:2)
I have no idea. I was purely speculating without any facts at hand... it never hurts to be optimistic, right?
Re:Or... (Score:2, Informative)
When the system is found succesful NASA plans to use it in future probes, like the Interstellar Probe [nasa.gov]. That thing would travel 200 AU (Astronomical Units) in 15 year. Much faster than the Voyager and Pioneer crafts.
Another, more controversial, propulsion system is Nuclear propulsion. Technical information can be found here [nasa.gov]
Re:Or... (Score:3, Informative)
Re:Or... (Score:2)
For sending stuff between the inner 4 planets, they're a solution that will need to be explored more in the future.
To send a probe to Pluto? You can get good speeds out of a solar probe, but then you have to drag along some other form of engine to stop somehow once you get there.
Ion propulsion is probabally a better researched/preforming choice for this mission.
-Brett
say what? (Score:2)
Re:say what? (Score:2)
I'd guess NASA has an idea for something else that they'd much rather spend money on, and they were planning on asking Congress for money, but now they can't because they've already been given this.
Re:say what? (Score:3, Interesting)
Hey, they can always ask. It's not like there's a budget anymore - what with what's being spent on the impending war, nobody's going to notice if NASA's budget gets tripled over the next two years. It'll just be a rounding error.
I bet NASA would just waste more money on ISS, anyway.
Bring back the DC-X!
Re:say what? (Score:2)
Money for science is money taken away from the Shuttle/ISS pork barrel.
NASA does damn good science, but now that the accountants are in charge instead of the engineers, the aforementioned damn good science only gets done when NASA is browbeaten into doing it.
This is good news (Score:5, Interesting)
I don't understand the line "Though NASA fought the concept, Congress wrote the money into the space agency's 2003 budget" however. Can someone explain this?
Re:This is good news (Score:2, Funny)
Basically, Congress is giving an inaugural award for outstanding achievement in the field of excellence
Re:This is good news (Score:5, Interesting)
I understand NASA was fighting the concept because they felt the money would be better spent on shuttle studies and Mars activity. Not that they did not want the money, they just did not want to earmark it onto a mission to Pluto.
Consider though the design and launch of such a thing will train another group of engineers in the art of spacecraft design. There are still many of us, now in our 50's and 60's that originally designed a lot of the missions when they were popular in the late 70's, but we are aging. We won't be around forever. And, due to budget cutbacks, a lot of us that have designed spacefaring circuitry are no longer in the industry. As I type this, I pulled a couple of old references I had, reviewing just for the heck of it an Energy Detector design for studying the Van Allen belts and the multiplexer design for the Explorer VII spacecraft launched in the 60's.
But not many of us lived through that heyday. If a new cadre of engineers are not trained on an unmanned exploratory mission, they get to train on a manned one. I would kinda like them to train and hone their skills on something like this. Back in the old days, we had very little to build our stuff with.. most of it was pre-integrated circuit... like we made them with individual transistors. And we were very concerned with how the transistors degraded with respect to radiation dosages - as nearly all circuits were linear. Today we have much better parts - lower power too- but there are other problems involved that the later parts today are far more sensitive to radiation than those big clunky ones we used. Even before that, our vacuum tubes were immune, for all practical purposes, to EMP - such as static discharges or , God forbid - nuclear artifact. I still use a vacuum-tube oscilloscope when I repair vacuum-tube guitar amps for friends because its front end is immune to the several hundred volt potentials I encounter on the plates of the vacuum tubes.
I know we just about could tell you how many electrons were in the battery, and we had to make such miserly usage of them. You would probably be surprised at all the tricks those guys went through to conserve every last electron of the flow of current.
Even our early receivers are works of art. Cryogenic tuners. By building resonators out of superconductors, we could get the "Q" sensitivity high enough to still see our birds as they transmitted on miniscule amounts of energy. The trick was in integration and probability analyses. Stuff like that takes time to learn. And it just about has to be hands-on too. Kinda like learning to walk. You fall a few times.. ( or you set a few rockets back on the ground a few feet from the launch point, launch things into useless trajectories, or launch things that don't work). The phrase that went around during that time was "launching a Maytag"... because the satellites of the day were about the size of a washing machine, and were just about as useful as one if they did not fulfill their intended function.
Re:This is good news (Score:5, Insightful)
Apart from anything else, the thinking about designes that *have* to work for 12 years and that you *can't* fix is, IMO, most healthy for NASA. Of course the jury is still out on Columbia, but if it turns out to be tile damage, that shuttle was doomed from liftoff: they had no way of fixing damaged tiles in orbit. NASA has got into the way of thinking that any componen only has to last one flight (Shuttle) or till the next resupply mission (ISS). The rest of the world doesn't work like that: woule you accept a car that needed new tires, an engine overhaul, and a massive safety check after each tankfull of fuel? The rest of the world works either on built to last the lifetime of the object, or at leas a long working life.
Prime value of manned space flight (Score:2)
The astronauts are a bait for luring kids into the science and engineering professions.
As they mature, the unmanned missions will become more interesting and motivation. Within my memory, only Sputnik and Sojourner grabbed attention near that of astronauts, with Laika and Voyager (and possibly a Lunar surveyer) following right behind.
Re:This is good news (Score:4, Informative)
I just wanted to point out that figure is HIGHLY innacurate. I seriously doubt there are any private homes in the entire state of California which go for 10% of that value. $500 million is a lot of money.
As an example, AOL Time Warner are building a fairly large mixed use development by Columbus Circle in Manhattan. This is a HIGHLY desirable area. The complex has two 55 story towers. As you can see from this story [icsc.org], the entire cost of this building is $1.7 billion, a little more than 3 times the value of this house of which you speak.
Even in Manhattan, the most expensive real estate market in the nation, I have never seen any residential property close to $500 million, unless you are referring to a while high rise. A full floor, 20,000 square foot condo on 5th avenue accross from central park might cost $50 million, maybe more. But not much.
Some oversized mansions from another age might fetch $100 million, but they are rarely on the market.
Anyway, just wanted to make that correction while the coffee has me spirited.
Re:anubi's reply (Score:2)
I don't remember quite how I got into the discussion, outside of the real estate market discussion, but I think about the same things all the time.
THe social system we have in place was created to keep people busy, primarily to prevent revolution. You have to remember that from a scientific standpoint, 90% of people have no useful reason to exist. Schools, companies, government rules, conscription, wars... It is all part of a gigantic ruse, to maintain the non-producers as you say. Its really a great substitute for slavery. Slaves know they are slaves, so they resist. Better to train them to serve and do so willingly.
Hell, people actually believe a "service" economy is the ideal form of human life! 2000 years ago, service was something slaves did for their masters.
Anyway, we can't have 8 hour work week, or god forbid, true freedom. Otherwise, people would want to really live. Instead of teenagers rebelling by listening to bad music and living hedonistic lifestyles, they might do what their ancestors did... stage an armed rebellion. Can't let that happen. 12-17 years of school gets rid of those tendencies for most. The rest go to prison.
depressing huh.
Why would NASA fight this? (Score:4, Insightful)
That being said, NASA would much rather spend this money on something that will show direct results quickly. The Pluto mission will not have any results until 2015 when the probe finally reaches the planet. I'm sure that scientifically NASA doesn't mind going forward with a Pluto mission but from a budget standpoint they would rather have used the money for something else.
Re:This is good news (Score:2)
Are you sure you don't mean, here in Southern Syria Planum, Mars? I've never heard of a $500M house, and I live in San Diego.
Gaining engineering experience (Score:2)
While I appreciate that keeping the engineering teams trained is a good thing and I'm in no way against this particular mission, I was wondering if you could please clarify what you're saying here.
Specifically, is there any reason why the engineering teams need to be trained up on a mission going to the Kuiper belt? There's hardly a lack of current [nasa.gov] and future [nasa.gov] JPL missions that involve sending probes to other bodies in the Solar System.
12 years? (Score:2, Interesting)
Personally, I'd rather see more money spent on human spaceflight, such as the necessary refitting/redesigning of the shuttles. Probes are great, but Pluto just isn't that exciting to me. It's a small, cold rock. Then again, I guess we don't know for sure until we get a better look at it.
Pluto not exciting...? (Score:5, Interesting)
Take a look at what Voyager 2 found out about Triton [arizona.edu], which it only passed by default.
Pluto [arizona.edu] is very contrasty, it would be good to find out why that is, too.
Re:12 years? (Score:3, Interesting)
--sex [slashdot.org]
Re:12 years? (Score:5, Insightful)
You need to distinguish between your objectives. Human spaceflight serves no immediate purpose. It is a long-term investment for the day where we have the resources and technology to travel to other stars and colonize the galaxy. But in the here and now, it's entertainment: money spent with no productive use. (And better spent, if I may add this, than on automobile races, or presidential campaigns, or certain wars, or any other form of TV entertainment).
The Pluto probe, on the other hand, is science, pure and simple. It's not meant to be exciting, except for scientifically minded people. I won't go on about the reasons for science...
Very exciting Re:12 years? (Score:5, Insightful)
If we have learned anything from past probes, it's that we'll always learn something we never expected. That prospect is not exciting?
The eternal quest for knowledge and to understand our history is one of the things that makes us what we are.
Re:12 years? (Score:2)
Great, pour money into keeping some old wrecks on the road for a while longer so they can kill more people...
The necessary redesign of the shuttle involves a car crusher.
I can understand people who are attached to Concorde and so why it is made to keep stagerring on. It's a beautiful aircraft and was a wonder when it was new. The shuttle was designed by politicians and bean counters, is ugly as sin and an all around embarassment to the planet. It should never have been, still less should it have been kept alive zombie-like for so long.
Probes are great, but Pluto just isn't that exciting to me. It's a small, cold rock.
A lot more interesting than anything the manned space programme has done since Apollo.
The whole project budget is of the same order as one(!) shuttle flight.
Budgets... (Score:5, Interesting)
Total mission under $504 Mil.
That really isn't bad, there are F1 teams that spend that type of money in one season, and most F1 teams will spend that type of money in two seasons.
You really can't fight any war for that kind of money.
Compared to other things this is quite cheap, if only more people would realise that the prices of space exploration aren't that bad...
I think that’s really expensive (Score:2)
The New Horizons spacecraft would be able to detect Pluto satellites down to 0.62 miles (1 kilometer)
Other satellites might have gone unnoticed and, if there, should tell a great deal about planet and comet formation in the outer solar system.
I'd rather see the money used in general R&D on the space ladder or a plane that can make low orbit. Lets get a better and cheaper system for getting things into space first. Then we can send out 1000's of _cheap_ probes to look for this worthless^H^H^H^Hfull information.
That money may not get us a space ladder, but it will get us 500 million dollars closer to it.
Space Ladders: Speculative Fiction, not sicence. (Score:2, Informative)
1, Grounding the ladder in the first place.
2. What kind of material we can use that can hold the thing together.
Space Ladders today are almost as much of the product of fiction as Ringworld. Maybe, someday, our distant ancestors will figure out ways we can't even think of right now. But that is far enough into the future that a Kuiper Express project isn't going to put a significant delay on it. Spending such money on space ladder research will do nothing but throw money down an unproductive hole.
Re:Budgets... (Score:4, Insightful)
But $504 Million dollars is a lot of money! I could brush everyone's teeth in America with that money! Twice!
--sex [slashdot.org]
Re:Budgets... (Score:3, Insightful)
F1 teams, howerver, acquire their revenue through voluntary means. The people who invest in the F1 team have personally chosen to endorse the team. When the F1 team makes a bad investment, they experience a loss. If they can't figure out how to invest their revenue wisely, they will be eliminated from the market and replaced with a better F1 team.
NASA, by contrast, aquires their revenue through the force of government. The people who pay for NASA did not personally choose to endorse the organization. They are given a choice: pay up, leave the country, or go to prison. This "choice" is hardly equivalant to the choice made by F1 investors. When NASA makes a bad investment, they experience no loss -- it wasn't their money in the first place! When a government agency makes a bad investment, more often than not they are rewarded with more revenue.
Perhaps we should be thinking about ways to privatize the space industry, instead of thinking of ways to continue funneling tax dollars into an organization which (and I'm sorry I have to say this) dramatically failed its investors at least twice and continues to recieve funding, whether the investors (taxpayers) approve of it or not.
Re:Budgets... (Score:2)
Re:Budgets... (Score:2, Funny)
Hope you're having fun with that 286 running DOS. I take it you spent all that money over the years on big macs for homeless people, instead of upgrades.
No?
Re:Budgets... (Score:2)
Easy! Just say that's where Plutonium comes from!
Given the clue level of the typical Congressdrone on any matter involving science or technology, it'd be almost impossible for this plan not to fail. *G*
Look out for Greenpeace and their ilk... (Score:5, Insightful)
Pretty much anything going to the outer system must have a radiothermoisotopic battery aboard, which powers the craft by using the warmth of decaying radioactive isotopes. It's too dark for solar cells out there.
And to get out there, probes must use slingshot trajectories around inner system planets, usually including Earth. It is conceivable, if highly improbable, that a navigation error (insert unit conversion joke) would cause the probe to impact Earth instead of passing it by.
In sum, be prepared for a repeat of the Cassini craze [animatedsoftware.com].
Re:Look out for Greenpeace and their ilk... (Score:3, Insightful)
--sex [slashdot.org]
Re:Look out for Greenpeace and their ilk... (Score:4, Insightful)
RANT
FUCK Greenpeace.
During the 50s and 60s - the era of atmospheric nuclear testing - we dumped 3300 KILOGRAMS [lanl.gov] of plutonium.
And didn't just disperse this 3300 kilos of Pu by means of Skylabbing or Columbi-izing a few hundred space probes' worth of nicely-encapsulated RTGs, we dispersed it all by vaporizing it with giant-azz atomic bombs.
If there were any risk to public health posed by the (unlikely) re-entry of a failed space probe and the (even more unlikely) disintegration of a few pounds of Pu in an RTG on re-entry, we'd already be dead, hundreds of times over, because we've already had the worst-case scenario played out, hundreds of times over.
> but that doesn't matter to the general public.
Yeah, you're right, "that doesn't matter to the general public". Scientific illiteracy among the general public is the subject for another rant, another day.
While I think the Shuttle's a waste of time and money, I lament the end of manned space exploration, because when I was growing up in public school, I could at least dream of a day when I could board a rocketship and get away from these morons, forever.
End rant.
Re:Look out for Greenpeace and their ilk... (Score:4, Insightful)
Re:You needn't worry about that... (Score:4, Informative)
1. Launch vehicles are destroyed by remote control if they stray outside of a mathematically-defined "cone" around their planned flight-path. This is always going to be at least several hundred miles away from any sizable population.
2. There's no launch vehicle destruction scenario that is anywhere near violent enough to damage an RTG casing enough to release radioactivity. Possibly striking the ground at thousands of miles per hour would do it - but no launch vehicle travels at that speed at any altitude anywhere near the ground. They get up pretty high before they accellerate to that speed, and if they turn around and point the wrong direction (down) for any reason, they're destroyed - no rocket=no thrust, no thrust=no high velocity impact. The casings for these things are tested in impact tests with rocket sleds slamming into concrete walls at hundreds, even thousands of miles per hour, and they survive intact.
Re:You needn't worry about that... (Score:2)
And that's why I'm glad that organizations like Greenpeace are holding NASA's feet to the fire, just as much as I'm going to be glad when the Kuiper express is on its way to Pluto with its--very thoroughly scrutinized--RTG.
Re:You needn't worry about that... (Score:2)
Yes, if they are designed correctly. The question is whether NASA and their contractors are capable of designing something like that correctly.
Even if that's not enough for you, they don't actually carry that much radiation. I read a report a long time ago that if a RTG vaporized directly over a large city, it would be the equivalent of everyone outside getting a tan.
Well, let's say that that is true. If everybody went outside and got a tan, then that would probably result in dozens of additional deaths. Just because it's hard to attribute those deaths to a specific action doesn't mean that they don't happen.
But that's not even true. The total dose of radiation may be low, but the problem is that you receive in places like the inside of your lung.
Dispersing Plutonium in the atmosphere does not cause instant death, and it does not empty whole city blocks. It's probably not much different from atmospheric nuclear tests. If an accident were to happen, nobody would notice. In fact, military RTGs may have blown up left and right and nobody would know. What it will do is increase cancer rates slightly and over a long period of time. But why do people have this twisted notion that if you kill thousands of people through something invisible that takes years to kill, it is any better than lining up the people against a wall and shooting them?
As I was saying: RTGs can be made safe, but I have little confidence that NASA knows how to make them safe or really cares much. In fact, I have strong suspicions that NASA's attitude towards the issue is as irrational and cavalier as yours. And that's why I hope that their designs will be carefully reviewed by others.
Re:You needn't worry about that... (Score:2)
Heat shields are incredibly simple devices as well, yet NASA managed to construct a space shuttle around them that had so many different modes of disintegrating on re-entry that we still don't know which one to pick.
(as someone pointed out, about 26 people consumed a "lethal" dose of plutonium during the Manhattan Project and yet virtually all of them lived to see old age (above the statistical average in fact)).
That is not inconsistent with the fact that plutonium is a very dangerous poison. If it causes one death in a thousand, you would expect that a group of physicists would live longer than average, while in a city of 10 million, 10000 additional people would die from the exposure. (Also, it's inhaling plutonium that you have to worry about.) If an RTG disintegrates on re-entry, it will almost certainly not kill you or me or anybody else in particular; I'm more likely to be killed by a speeding truck. But it will probably kill lots of people nonetheless.
Basically, you seem to subscribe to the notion that it's perfectly fine to kill thousands or tens of thousands of people as long as nobody knows that you did--otu of sight out of mind. I worry that NASA does the same. Of course, we already know that the DOE and the US military subscribe to that notion and act accordingly. But why add to the problem?
Re:You needn't worry about that... (Score:2)
Look, you are satisfied with the safety of a NASA design based on a NASA and DOE press release. Come on, doesn't that strike you as silly?
What I'm saying is: neither of us is qualified to determine whether these designs are safe. And given NASA's recent track record, I simply do not trust them to make the call by themselves--they have screwed up too much. I'm glad that Greenpeace and lots of other organizations scrutinize, pressure, and protest: it will hopefully get NASA to take more precautions than they seem to be capable of by themselves.
As for the general question of plutonium toxicity, don't take my word for it, look at the CDC site [cdc.gov]. Or, even take the plutonium-friendly LLNL report [llnl.gov], which, in whatever way you look at it, ultimately does argue that there can be around a thousand deaths per kilogram of plutonium released over, say, Munich. But it, like you, assumes that if the additional risk is small compared to other risks, the additional deaths just don't count.
Re:Look out for Greenpeace and their ilk... (Score:3, Funny)
Maybe we can clearcut a forrest or start a war or something right about the launch time for this probe?
Plans for a new Star Trek are already underway... (Score:3, Funny)
well...It couldn't be any worse than Star Trek V.
Nasa's revenge (Score:4, Funny)
They'll crash the probe into the planet before getting pictures.
Hmmm, maybe there is some sorta secret Nasa installation on Pluto, maybe that's why Nasa doesn't want the funding for the mission.
Re:Nasa's revenge (Score:2)
> They'll crash the probe into the planet before getting pictures.
Naw, no pork in that. (12 years of sitting around waiting for it to pancake doesn't qualify for a budget allocation.)
Instead, I'll bet they'll pull some strings so that it can only be launched on the Shuttle, and so that the probe fails a day or two after launch.
The "solution" will be another $300M to build a new probe - and another $500M for another Shuttle flight to launch it.
Stop thinking like an engineer and start thinking like an accountant :-/
This is what NASA should be about (Score:4, Insightful)
Going places where we have not been before. It makes more sense (and is more cost effective) than man marking time in the space station.
The have to do this mission soon while Pluto is in the "warm" part of of its' orbit.
Re:This is what NASA should be about (Score:2)
don't want to go? (Score:2, Interesting)
taking that statment and adding some speculation, i take it to mean that maybe something might be in the path of pluto, or maybe Nasa can't get the flight path presise enough (some little factor might put the probe on a wacky non-plutonian path). I think that the pioneer satelite just left the solar system, so i dont think that is a prolem (nothing like an atmostere on earth to slow you down, unless you belive that weird theory that photons can slow an object.)
Re:don't want to go? (Score:2)
taking that statment and adding some speculation, i take it to mean that maybe something might be in the path of pluto, or maybe Nasa can't get the flight path presise enough....
I'd bet the timing issue is political, not technical.
AOL Poll (Score:5, Interesting)
Should manned flights into space be halted?
88% No, its our duty to explore space 2,152
12% Yes, the risk of loss of life is too great 285
Total votes: 2,437
Should the funding Nasa gets (currently $14bn per year) be increased?
82% Yes, the benefits space exploration bring are massive 1,964
18% No, far too much money is spent for too little benefit 445
Total votes: 2,409
NOTE: Poll results are not scientific and reflect the opinions of only those users who chose to participate.
And Project Prometheus... (Score:5, Interesting)
That, and Bush talked about Project Prometheus [space.com] in his State of the Union Address. It seems like Bush wants to be remembered for something more than just Iraq.
--sex [slashdot.org]
Re:And Project Prometheus... (Score:4, Insightful)
We've forgotten about Afghanistan already?
Re:And Project Prometheus... (Score:2)
Re:And Project Prometheus... (Score:2)
1) Well if that's the case he wouldn't have signed it "quietly" (the article's term).
2) Knowing nothing about the "omnibus" bill, my first guess would be that the funding was just one of many "riders" on a totally unrelated bill. IANAPolitician.
Sounds political to me (Score:4, Insightful)
This is just another superiority assertion by the US government. The fact that NASA was against the mission shows how much the government cares about the opinions of those who will be actually performing the mission.
WTF are we going to find on Pluto? How about that moon that may have a liquid ocean beneath it's surface? (can't remember it's name) It's closer, it will cost lest and happen faster. There's far more potential of finding something interesting.
Re:Sounds political to me (Score:5, Informative)
Maybe. But it makes sense scientifically (look at the story for the why of it), and what is life but a series of contests? If not for the ideological dick-waving contest in the 60s, there would have been no Apollo.
How about that moon that may have a liquid ocean beneath it's surface?
You are correct that landing a probe on Europa (insert ominous Kubrick film warning) would be desirable. However, that's several more levels of technical complexity. You need to deploy a lander on the surface (no atmosphere = reaction engines = fuel = heavy = cost), then penetrating a kilometer-thick ice crust (power = radiothermic generator = heavy, also evil), then deploy an autonomous (the comm delay is measured in hours) microsubmarine equipped with all the instruments usually found in an entire university laboratory. Which in turn require bandwidth. And more power. And very good control software.
In short, it's probably doable (what isn't?), but it would cost orders of magnitude more than the Pluto/Kuiper probe.
Re:Sounds political to me (Score:2, Insightful)
Re:Sounds political to me (Score:2)
I bet this project is really funded by Disney [geocities.com]. They are hoping to extract additional profit from use of their trademark!
Question... (Score:3, Interesting)
The real reason... (Score:3, Informative)
1) To get proper pictures of pluto (it seems telescopes are not good enuff
and 2) to get a view of outer space unhindered by the space dust of the solar system
Some links
here [spaceref.com] and here [cord.edu]
Re:Question... (Score:3, Insightful)
Perhaps this is why NASA was opposed to the idea? The politicians who pushed it forward weren't necessarily thinking about the best thing for science, but rather the best thing for politics.
Why oh why? Isnt the Space Station more important? (Score:2, Insightful)
Re:Why oh why? Isnt the Space Station more importa (Score:3, Insightful)
On the other side, we *have* to make some progress and the only way we know how is "learning by doing". Research should not always be about instant gratification and sometimes solutions to our problems come from unexpected discoveries. There is a very real need to know as much about our universe as we possibly can figure out.
So, we got to remain active on the space thing or else we won't evolve technologically in that area when it would be rewarding in the long run. Now, why that doesn't mean we establish a Moon and/or Mars colony and do some actual space faring instead of sending countless billion-dollar-probes on suicide missions to return almost no useful data - THAT escapes my limited understanding completely.
Can someone enlighten me on that one?
Let's at least build an automated assembly station on the moon (or something like that) so we can launch "mass produced" probes in a more efficient manner. That's because the cost of getting something in space is still a very huge expense because we're way in the stone ages when it comes to propulsion. And in addition, custom-designing and custom-manufacturing of probes is very expensive. Let's just make more, general purpose probes and send have them start from a low gravity place! Let's go to space using a collection of standardized off-the-shelf components! Why not? (This is normally the point where pseudo-experts jump in and rant about complexity of space missions, but keep in mind that the *actual* reason may be because there is a huge industry that has nothing to gain and everything to loose if space exploration would be made cheaper and more efficient. Our civilization is paralyzed by it's inherent corruption, sometimes it seems like we can almost never get anything actually done.)
Re:Why oh why? Isnt the Space Station more importa (Score:2)
Because even though the cost of the probes is high, much of the costs are in the launch and the people manning the uplink to the probe make up the lions share of the costs (just launching can be more than half the entire budget). Since the launches are so expensive any probe launched which doesn't perform is a waste of the money spent to get it into orbit.
I don't think simply making numerous cheap probes and spending many millions of dollars to throw them into an orbit to often fail would be better on the budget than the current method.
One way to overcome this is to have NASA focus on reducing the cost/kg of launch systems by pursuing alternate launch methods. Doing this could have a significant effect on both scientific and commercial use of LEO and beyond.
Re:Why oh why? Isnt the Space Station more importa (Score:2)
Amen to that. Individual satellites are expensive, as a friend in the Canadian Space Agency told me, mainly due to the R&D and construction of one-shot fabrication equipment. Imagine introducing assembly-line style mass production and modular designs to satellite construction. Sure, each individual satellite may be less effective than the current idea of custom-building, but a thousand less-effective mass production satellites may be more effective than a single custom satellite. I'm certain the idea has crossed the minds of others, I'm not claiming it to be original. :)
And as for launches, what about Earth-based mass drivers? A google search turns up tons of concept art sketches and PhD-level papers. Does anyone have anything easier to understand for someone with a liberal-arts-undergrad level of physics knowledge, with regard to current research on them?
Offtopic, but it would be nice if there were a dumbing-down checkbox on Google. "I want searches in the range of: 1) Grade school 2) High school 3) College 4) Richard Feynman."
Re:Why oh why? Isnt the Space Station more importa (Score:2)
Oh right. So the Wright brothers shouldn't have bothered with that 'Wright Flyer' shit, they should have waited until they could build a 747.
You, sir, are a blithering idiot.
Re:Why oh why? Isnt the Space Station more importa (Score:2)
So, is this like a trick question or what?
Re:Why oh why? Isnt the Space Station more importa (Score:4, Insightful)
Yeah, because nothing [nasa.gov] useful [spacetechhalloffame.org]
has ever [amazon.com] come [astronomynv.org]
from space [luvyduvy.com] research. Jesus man, science for the sake of science is what got our civilization to the advanced state is in today. You don't know the impact space technology has had on your and my life.
Until we develop the tech to do it right, Blow it off.
Yeah, Nasa oughta just sit on their asses until one day the one true idea strikes them and they figure out how to do it right. This is how they figure out how to do it.
The reason to visit pluto.. (Score:4, Informative)
1) Find out about the planet since telescopic pictures are not good enuff..
2)Look out from the near-zero atmosphere of pluto out into space, unhindered but particles of the solar system
Some links here [cord.edu] and here [spaceref.com] about these..... (Rudimentary googling, I am no expert)
If we are even here in 12 years (Score:3, Interesting)
That aside, it sounds like a cool endeavor. And while we wont learn much that is practical, expirements just for the sake of science are still good.
Re:If we are even here in 12 years (Score:2)
Its more then just oil (Score:2)
There is a difference in being a bully, and protecting your turf.
Oil resources is a factor I admit, but its down low on the list.
APL (Score:3, Informative)
Besides the funding issue, the other main problem with New Horizons is the fact that neither of the two launch platforms (Titan 4, Atlas 5) have been certified. They both, however, did launch successfully last fall.
Re:APL (Score:2)
Furlongs per fortnight. (Score:2, Funny)
Anyone out there interested in these figures who still use miles and ciceros?
Stay away from Yuggoth! (Score:2, Funny)
Thats right, I'm here to give Pitr a run for his money.
evilmoe [blogspot.org]
A Theory (Score:4, Interesting)
The only conclusion i can come up with is that
NASA wanted money for something else. That and perhaps congress wanted to get a signal to NASA. "Hey NASA, try building something that'll last for a while, something that you don't have to strip and rebuild every time. It'll give you practice, and with that practice you can put that experience into making better, more reliable shuttles."
I read that Bush signed off on nuclear engines a bit ago, basically paving the way for a missle defense system or some such. (memory's sketchy, but i believe that's the case) I'm surprised that NASA wouldn't try to develop those engines and incorperate them into the pluto probe. It'd make the journey faster and it'd be a good way to test-drive them.
In any case, NASA needs a project like this. No doubt, the pioneer 10 misson was very exciting to see. Old tech still kicking and doing it's job way longer then it was expected to. That tells me that NASA really knew how to build things that l-a-s-t back in the day.
There's hardly any info on Pluto to begin with, and the only pictures we have are fuzzy distant images or artists' conceptions. I'd really like to see actual pictures of pluto up-close-and-personal myself.
All in all, if NASA works on this hard, and there's no hangups, this probe should last a good long time.
Space stories bring out the idiot armchair experts (Score:5, Informative)
There needs to be a mod for nonexpert-blowing-posteriorized-smoke!
Having seen the goop that was modded way up as I scanned this, I feel compelled to reply to several messages at once:
Change that to "we suspect..." and please read/internalize a quote from Werner Von Braun: "Basic research is what I'm doing when I don't know what I'm doing." Go grab a copy of Heinlein's remarks on receiving heart surgery that was a byproduct of the space age. Research incidental discoveries of every planetary fly-by we've done (every one taught us something noteworthy). Try to find the tenuous links between exploration and discoveries. And stop spouting off opinions with the wrong verb. (I deleted an extensive flame, questioning westyvw's parentage and marvelling at his ability to exist without the brains normally needed for autonomic activity)If I'm not mistaken, there aren't a lot of Al Qaeda space launches. In fact, I see a pretty strong link between hateful regimes and the utter lack of money spent on basic research in any humanitarian or scientific field. A lot has been learned in pursuit of warlike activities, admittedly, but just because we can't bend these backwaters' worldthink to our enlightened ways, doesn't mean we should sit around and wait for them to agree with us before we continue advancing.
Still, by your logic, I'd at least prioritize. TV, Brittney Spears, novels, the arts, all sports, all cuisine and restaurants, and a few dozen other pursuits are a greater waste of time than scientific research. Live an ascetic life and then come back telling me that the money can be better spent elsewhere. Oh, and your 'net connection... no, make that anything electronic you own... are all forfeit unless needed in a specific mission to combat death and despotism worldwide.
I hope the above paragraph is the stupidest, scariest thing you've ever read. Your belief has an underlying kernel of truth that can best be laid bare by just thinking of the absurdity of self-denial until everyone else in the world stops being so wrong-headed. Like communism, it's a nobel (a freudian typo?... I meant noble) idea that so far fails in every implementation.
Developing the 'tech to do it right' without practice is impossible and absurd. Heck, even in modern times, new boat designs have sunk fresh out of the drydock. We explore, we learn, and we stretch into the most unfamiliar areas first because they sometimes reveal deeper questions we didn't even know we should ask. Also we spend years dissecting the failures for lessons and improvements.
Who the FSCK modded this up (as insightful) to a 5??
--------
In a followup, thasmudyan suggests we skip the unmanned cheap exploration and instead set up a mars colony, then contradicts him/herself by suggesting that the space station is worthless in paragraph one and then suggesting that we set up a probe assembly and launch point on the moon. The space station has a shallower gravity well and a more forgiving landing/linkup point than the moon. In other words, it is an attempt to build a staging point for space research. That having been said, if it costs thousands per pound just for fuel to get away from the earth (and about half as much for fuel to land on the moon and relaunch it), how inexpensive will it be to build a semiconductor fab, ship pig-iron, build a machinist shop, have a full suite of materials testing and QA devices, etc etc etc lofted into space? For a long time to come, the most we can hope for is reusability and assembling things prebuilt and tested down here where everything's available and shipping costs are 1e5 cheaper.
As for thasmudyan's belief that there's potentially a conspiracy to keep space travel expensive, I find all the kennedy-assassination theories more plausible. The cost of escaping earth's gravity is so high, you can pay an engineer for ten years and spend less than lofting him into space. There isn't a techie alive that wouldn't love to see those numbers brought down to a level that makes a week in space affordable. It matters to most of us much more than mere money ever could. Getting thousands of geeks to remain silent about ways to drop those costs would be impossible. Space travel remains expensive not out of a conspiracy, but simply because it is that hard, that iffy, that expensive.
If you don't believe me, you don't understand the technical extremes we're talking about here. Check again the ongoing postmortem of Columbia's failed reentry, and imagine building any device (no matter how simple) that performs well under these extremes of heat and cold. If it seemed easy, find any 1 thing that performs well both immersed in liquid nitrogen and exposed to a blowtorch. Last of all, imagine building something complex enough to support life for days and still withstand those two thermal extremes, plus a thousand other issues like extreme acceleration forces, radiation, hard vacuum, repeated hot/cold cycling for anything going in/out of unfiltered sunlight, etc., etc., etc. This complexity is why we have the phrase "It isn't rocket science."
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Thankfully, the anti-nuke protest was modded down low enough I only saw responses. Hospitals and highway departments have nastier stuff than the 'nuclear batteries' used to power probes. If I were Roblimo, anyone saying 'chernyobl in space' without a new argument would immediately have all karma stripped. If I were king, they'd get flogged.
Too bloody late (Score:3, Insightful)
Am I the only one... (Score:2)
Pictures? (Score:2)
Better bring a flash. It's tough to tell the Sun from the other stars at that distance.
Will we be interested in 12 years? (Score:2)
Well, the public was fascinated by Pioneer way back in the day, then they were fascinated by Voyager in the 80s and then in the '90s we were fascinated by Sojourner/Pathfinder, so yeah, we probably will be fascinated by PFF/PKE/whatever they're calling this thing right now. There's always a large portion of the populace that thinks space pictures are cool. Especially kids and nerds, and those will always be a large segment of the populace.
Let's get a Moonbase (Score:2)
Capital costs... (Score:2)
To build a planetary probe you need to be able to build/extract/refine...
Until the cost of getting off Earth gets much lower, the capital cost of launching all the equipment and personnel necessary to run the kind of moon base you're talking about is going to be so massive as to be beyond the discretionary resources of even the US government for a while.
Pioneer did NOT interest many (Score:2)
This is coming from my astronomy professor at Cornell (who is a major NASA player, directing the Rover missions, etc). He says that Pioneer, while amazingly sucessful in terms of science, was never veyr sucessful to the public because it's camera were pretty crappy. They produced pictures that were not much better than the best ground-based telescopes of the day. Voyager capitalized on this and was given high-def cameras.
Pictures are among the less important tools on those spacecraft (again, according to a prof), where the radiation scopes, temperature, etc are much more important.
For a good example of this, look at the first probe to make it to Mars - Mariner 9 (9, right?). It finally reached Mars after years of failures, only to arrive during a global dust storm! The public interest was quickly wanned.
Re:We dont' need a CHERYNOBL in space! (Score:5, Informative)
Because we're not running a nuclear reactor, we don't need any fancy machinery around the radioactive core, and so it can be embedded in extremely tough materials. This stuff makes a black-box recorder look flimsy. The worst damage the plutonium core could do to someone if the rocket exploded on launch would be to land on their head.
Furthermore, plutonium is not the deadliest substance known. While a dangerous alpha-emitter if ingested, and an undeniably toxic heavy-metal, there are far more lethal substances. That honour AFAIK goes to VX nerve gas.
Re:We dont' need a CHERYNOBL in space! (Score:5, Interesting)
No need to compare plutonium with nerve gas. A better comparison would be caffeine. Yup, caffeine is more deadly [wisc.edu] than plutonium.
Ralph Nader made the claim that plutonium was the most toxic substance known. As the page linked to above says, "Dr. Bernard Cohen, went so far as to volunteer to eat as much plutonium as Ralph Nader would caffeine in an attempt to demonstrate the folly of the severe toxicity claims. Mr. Nader refused the challenge."
Re:We dont' need a CHERYNOBL in space! (Score:2)
Sure, that's why everyone who handles plutonium either does so wearing hazmat suits or remotely via robotic arms. 'Cause it so harmless. You are a brainless twit.
Actually, you are the brainless twit. Plutonium mostly emits alpha particles, big, heavy particles. They are blocked by most anything, including the epidermis. Therefore, holding a piece of plutonium won't do much of anything to you, unless you keep it on your person for a long time. Uranium is even less radioactive. (Uranium is less radioactive than uranium ore, which is used in fiestaware plates.)
It provides no independent references to the validity of it's claims or to the supposed challenge given to Ralph Nader. Tell you what, I'll take this "Dr." Cohen's challenge and ingest twice the amount of caffeine as his ingested plutonium. Doubt he'll take me up on the offer though.
Wow, somebody didn't check his facts before he went off. Here [wisc.edu] is the link to a web page with Dr. Cohen's Eco-Fuck Challenge. And it's a University of Wisconsin site, as well, so don't try saying it's "a half wit's pro-atomic power website."
In addition, it talks about the exposure of several workers in the 1940's to doses of Pu that are now considered above the lethal dose.
Ok, how do you explain that? These workers had cancer rates lower than average despite ingesting larger than lethal quantities of plutonium Now how exactly is it the most lethal substance in existence?
There we go, another anti-nuclear unscientific crazy debunked. Only 500 million to go.
Re:We dont' need a CHERYNOBL in space! (Score:5, Informative)
Re:We dont' need a CHERYNOBL in space! (Score:4, Informative)
This concern is understandable, but uninformed. Refer to this page [planetary.org] for a technical explanation of the problem and its solution. There is also a wealth of information here [seds.org].
I, personally, am more concerned about nuclear-powered Cold War-era spy satellites still orbiting Earth than I am about a 21th-century-technology vehicle to be launched far, far away.
Re:We dont' need a CHERYNOBL in space! (Score:4, Informative)
I was going to go into a long-winded rebuttal of your arguments, but then just did a quick search and copied and pasted the results here.
(And I would have thought that a "CHERNOBYL in space!" would have been the best place to have one, seeing as there's nobody there.)
Seeya!
"The ceramic-form plutonium fuel is heat resistant, thus making it more difficult to be vaporized in case of fire or reentry environmental exposure. The fuel is also very insoluble. It has a low chemical reactivity and breaks in large pieces, not small parts that can be inhaled or ingested. Unlike in nuclear accidents, RTGs cannot explode because no fusion or fission processes are occurring. Hence, the acute radiation sickness associated with nuclear explosions wont be witnessed in an RTG accident."
RTGs (Score:3, Insightful)
Glowing in the dark (Score:4, Funny)
Oh the horror: nuclear atoms in space! Probably those nasty hadron-based ones to boot! The entire space can be polluted forever!
This is as serious as those huge deadly pools of dihydrogen monoxide [dhmo.org]!
We must act now! Help save space! No muclear atoms in space!