NASA Gives Up On Pioneer 10 610
Soft writes "Another Energizer Bunny has finally given out: Pioneer 10's generators have decayed to the point that DSN can no longer detect the probe's signals. It was the first spacecraft to penetrate the asteroid belt (1972) and fly by Jupiter (1973). So long and thanks for all the pic's..."
The Real Reason: (Score:5, Funny)
Wow! (Score:2)
An online Starcraft RPG? Only at [netnexus.com]
Re:Wow! (Score:5, Insightful)
If you think you feel old now, wait until you start getting old, my son.
America's oldest man died on Monday. He was actually born in a log cabin and of high school age when the Wright Bros. first flew at Kitty Hawk.
Think about that one the next time you feel "old." Your world has hardly moved at all compared to his.
KFG
Re:Wow! (Score:5, Insightful)
When he was born he had no *electricity* and no one in his family had ever seen an automobile. Geronimo had only been captured three years previously and was not only still alive, but a comparitively young man.
The world he was born in to was one someone born 500 years before would have recongnized. The world you were born into is one that that hypothetical person couldn't possibly even have conceived of.
You are talking differences in quantity. I am talking differences in quality.
There is no essential difference in type or quality of life today than there was 40 years ago when I first entered school. We live the same way now, with mostly the same things, as we did then. Electricity, phones, central heating, planes, automobiles, movies, TV, hydrogen bombs, etc.
The cars have become a bit more refined, the planes a bit faster, the phones cordless, the movies, well, they havn't changed much at all really. These are just the things we already had becoming better.
I'm not saying we don't live in interesting times, or that I'm not glad to be here, but the two cases are *damned* different.
By the way, the commercial sail record from Sandy Point N.J. at the entrance of NY harbor to Lands End England was only 11 days. It stood for 100 years.
And I'm *damned* glad the internet hasn't come up with one single reason for me not to go to London. That would suck.
KFG
Re:Wow! (Score:5, Insightful)
We need a new space race. In the 1950s and 1960s the U.S. was in competition with the Soviet Union for the exploration of space. The race began with Sputnik and ended with the Moon landing in 1969. Since then, the Soviets/Russians have concentrated on the space station (Salyuts and Mir) and the U.S. has concentrated on the Space Shuttles. This has lead to the current International Space Station.
What we need is a new space race to get us (Humankind) off of our duffs. If China gets their space program off the ground the way they want to, we may see one. Then things will really start to move again. Man back on the Moon, missions to Mars, and more (and better) automated spacecraft exploring the solar system. Pioneer 10 was a well built, wonderful space craft. I'd love to see new ones of that calibur made with today's technology. We just need the incentive.
Sorry slashdot.. (Score:5, Funny)
But I won't believe Pioneer 10 is dying until Netcraft confirms it..
So long old friend (Score:5, Insightful)
Re:So long old friend (Score:5, Funny)
Re:So long old friend (Score:5, Funny)
Shooting space garbage is no test of a warrior's mettle!
Re:Klingon target practice (Score:3, Funny)
Re:So long old friend (Score:5, Insightful)
There were no slackers then. There were dedicated young engineers with buzz cuts and and a slide rule. They didn't listen to "Hip Hop" or "Heavy Metal". They didn't wear baggy pants. They weren't interested in fashion or political correctness. Their uniform was a crisp white dress shirt, a string tie, and a pair of drip-dry Hagar slacks, accessorized with a leather holster--which held an 18 inch slide rule. Bang.
These men were focused on quality and greatness. They were patriotic, dedicated men who strove each day to make America first with the best engineering the human mind could conceive.
Today NASA is run by "professional" managers and bureaucrats. They cow-tow not to quality but to politically motivated "quotas" and false "diversity". Slackers abound. "Getting over" takes precedence over "getting it right".
The saddest thing of all is not the failures of the current space program, as disturbing as they might be. The saddest thing is that we have lost the spirit and the system and methodology which yielded our greatest triumphs.
Re:So long old friend (Score:5, Funny)
Only those people who continue to live in the 50's can possibly bring our great civilization forward. Right?
The thing that hobbles NASA is the politicians and their demand for big results combined with the huge cuts in budget.
I can't stand closed minded people. I'm sure you can work dilligently and continuously, you must be a blast to have as a friend.
Re:So long old friend (Score:5, Informative)
And there is no way you are going to tell me the space program was anything but politically motivated. It was a platform for Kennedy, Johnson, and Nixon to show up the Russians. Johnson particularly used it to keep the nations mind off Vietnam.
If anything, the lackluster movement of our space program can be attributed to a LACK of political motivation.
Failure is part of the process. The success of Pioneer's 3-11 came as a result of the failures of pioneer 0-2. The ones where they didn't "get it right"
It's also not like those engineers in the good old days never killed anybody [rochester.edu]. We've had three major disasters exploring space in 67, 86, and 03. All about 15 years apart or so. Not bad considering this is easily the toughest and most dangerous job in the world.
Re:So long old friend (Score:3, Informative)
Well, no disrespect to anymone working in space programs, but there are a lot more dangerous jobs in the world. Just making the news now are the apparently attrocious conditions in China's mines [guardian.co.uk]: "More than 5,000 people were killed in coal mine accidents last year, according to the government."
Re:So long old friend (Score:3, Insightful)
NASA was always run by politicians (remember what the space race was about?). It is mostly the difference in funding that makes current spaces program look miserable when compared to the glory past.
Re:Notice there were no black people or women... (Score:3, Interesting)
Well, for one the first compiler was designed by a woman: Grace Hopper. If that is not a big contribution to the field of computing I don't know what it is.
African Americans have also had great impact in our society, wether you like it or not, and they are not just in the fields of humanities. And given the background of opression and lack of incentives that some of these people (minorities and women) had to endure just a few years ago, it is even more impressive.
BTW, what is your contribution to humanity TROLL?
Re:So long old friend (Score:4, Interesting)
If you look at history, the first voyages to the New World were all politically funded and motivated. Columbus sailed to the New World (actually it funded as a trip to find a quicker route to India and China) with ships and crew funded by Queen Isabella of Spain. Once gold was found, Spain sent ships and men to go get it (the fact that the gold belonged to someone else was a minor point to the Spanish). Once word of gold and land got out, other European nations started sending ships to the New World, funded by their Governments. Later, as new profit opportunities were found, Corporations (Hudson Trading Company) started getting involved.
The political agenda with space is nothing new. We are still at the stage where Politicans are funding space exploration. We are just beginning to see the beginning of Corporate interest -- mostly in satellites right now.
That said -- the main difference (other than technology and location) is we haven't (yet) found anyone out there. Pioneer 10 was a well built spacecraft that has given us (and the Gov't) much more than asked for. It has traveled over 11 light-minutes in 31 years before giving up the ghost, not bad for 1972 technology!
Thats one old satelite (Score:2, Interesting)
Any one have any really really good pics its taken?
Re:Thats one old satelite (Score:3, Interesting)
Rest in peace (Score:5, Insightful)
Re:Rest in peace (Score:5, Interesting)
You know what I've always been looking for in the NASA site but could never get? Animated clips of its voyage (or that of Voyager's) and its fly-bys of the other planets. I always thought they would make really great looking screensavers to match my wallpapers of the shuttle. Anybody know where I can get them?
Keep on flyin Pioneer
Re:Rest in peace (Score:5, Interesting)
Quite a collector's item, eh? The 22nd Century equivalent of finding the Titanic. (Except that Pioneer 10 is an example of *good* engineering.)
Re:Rest in peace (Score:5, Interesting)
am I the only one (Score:5, Interesting)
Re:am I the only one (Score:5, Interesting)
Moreover, many think it's profoundly unlikely any alien races would be interested in conquering us. Even assuming others out there are hostile, the effort and expenditure of resources to get from there to here would probably mean the payoff for attacking us wouldn't be worth the trip.
It's also been argued that any extraterrestrial civilizations capable of detecting us will almost certainly be much older and more advanced (the thinking being that on the cosmic timescale, we're just starting off, and any civilization even a little younger than ours wouldn't have the tech to detect us, and the odds are high against another civ reaching this stage of development against the exact same time we do, so if they can hear us they've probably been around a while), and that (presumably, anyway) anyone so advanced wouldn't be warlike, so we'd probably have a lot more to gain than to lose from others finding out about us. I'm certainly no expert, but this does strike me as a fairly reasonable line of thought.
it's doubtfull that anyone far away will hear (Score:3, Insightful)
Re:it's doubtfull that anyone far away will hear (Score:3, Insightful)
The Earth emits almost as much RF radiation as a star. Anyone ET who has been watching our system for the last century would have noticed the massive climb. Anyone ET who is just starting to look at us would notice the anomaly. This would be visible anywhere in the appropriate radius, (about 70 light years), AND that radius is limited by lightspeed, not signal strength.
Re:am I the only one (Score:5, Funny)
I'm more worried about them seeing stuff like "American Idol," "Survivor," and "Joe Millionaire," and deciding we should all be exterminated, not subjugated.
We can only hope that their positive perception of our race from the 13 years of Simpsons episodes we've pumped out can withstand the damage the later shows will do to it.
~Philly
Re:am I the only one (Score:4, Funny)
Especially if they're a race of ultra-violent beings who can't stand to miss a single episode?
Re:am I the only one (Score:5, Funny)
If they can fly at FTL speeds, not missing a single episode is trivial. Just fly to the point to where the broadcast you want has traveled.
Woudn't be worth the trip?? (Score:3, Funny)
My friend, you seem to be forgetting our [geocities.com] vast amounts of stable Energon [geocities.com]!
Re:am I the only one (Score:3)
Not so. While the total amount of RF power we are emitting may be increasing, it is becoming progressively less comprehensible. Most signals are now compressed, and the function of compression is to remove from any signal the redundant information that says "this is a signal" when you don't know how it is coded. Essentially, compression makes a signal resemble noise, and the better the compression the closer it is to noise. Sure, you need some kind of sync mark to lock onto the stream, which could in principle be detected, but that is a very small fraction of the signal.
And we are tranmitting many more, much smaller signals. Instead of broadcasting tens or even hundreds of kilowatts from a hilltop to the universe at large, we are broadcasting a few tens of watts from orbit aimed straight at the earth, or sending it over cable, or broadcasting a few watts from cellphone masts or milliwatts from cellphones. The earths's RF output is raidly becoming indistinguishable from white noise, and from any reasonable distance will be swamped by the much bigger white noise generator nearby (the Sun).
There is therefore a shell, perhaps a hundred light years thick, of "detectable" transmissions expanding out from the earth, which is already trailing off. To put it another way, any aliens out there will have a hundred year window to look in in the right direction if they are to detect us by our unintentional transmissions.
Agree with the rest of your comment, though. The ides of aggressive/invasive aliens is purely to make good films/tv. You can't make a good drama out of civilisations getting in contact and just having a pleasant, though rather long drawn out, chat. But that is a far more likely outcome. Even if the cost is not orders of magnitude greater than any plausible benefit (the overwhelming likelihood, IMO), the likelihood of tehir being biologically compatible with us, our environment and our biological products is tiny. And if they don't want out biological products - there is a lot of rock out there to mine for mineral resources. Why try to mine the one bit that someone is sitting on?
They don't have to be advanced not to want to attack us, they just have to be sensible enough to know what is in their own best interests. And a species which failed that test is unlikely to have space-faring civilisation.
No need to worry (Score:5, Funny)
KFG
Re:No need to worry (Score:2, Informative)
+1 funny, tho.
DON'T MAKE ME RE-LIVE BATTLEFIELD EARTH! (Score:5, Funny)
Aaaaaaaaaaaaaaaaaaaaagh! No, make the pain stop! You are causing me a Battlefield Earth flashback! Not only did I watch that evil movie, I've read the damned book years before.
Don't you know that's exactly how Psychlo's found Earth in the first place?
Can I believe that I actually know that? Please, shoot me now before the Hubbard cultists get me!
Such pessimism.. (Score:4, Funny)
Re:Such pessimism.. (Score:2)
Pioneer when you see (Score:4, Funny)
Re:Pioneer when you see (Score:2)
Another article (Score:3, Informative)
So Long So Long Sorry to See you Go (Score:4, Interesting)
So Long
I'm Sorry to See You Go
I'm So Sad You Are Gone
I Dearly Miss Your Feeble Little Signal
You May Be Gone
But You Are In My Heart Forever
My Tears Will Follow You Wherever You Go
Haiku (Score:4, Insightful)
A little spacecraft
Far away among the stars
Rest well, Pioneer
Another Space Era comes to a close (Score:4, Insightful)
Here's to a long and steady life to the remaining deep space missions out there.
It's Done For? (Score:3, Funny)
So, using rice_web's ingenious stupidity, I've come up with:
(1) Send a new probe to follow our dying probes and act as a relay for the information.
(2) Just completely start over and get new probes up and running, and moving more quickly than our dying probes.
"relay" for deep space (Score:2)
Is there a "radio" hubble or one in planing that tries to duplicate the hubble's mission of getting to orbit to try and avoid earthbound interference. Imagine a listening array on the far side of the moon to try and listen in on even fainter signals than we can pick up with the VLA or Aracebio[sp]
Pioneer 10 isn't dead.... (Score:5, Funny)
Watch, in 5 years, someone will hear from it again.
Lifespan? (Score:4, Interesting)
Re:Lifespan? (Score:3, Interesting)
Re:Lifespan? (Score:5, Interesting)
It's when you start getting near things, like planets and stars, that things get dicey.
Pioneer is heading the other way, and there isn't any reason that it shouldn't drift on for millions of years, God willing and the crick don't rise none.
That's why they affixed the infamous plaque to it.
KFG
Distance. (Score:5, Insightful)
Incomprehensible space...it's incredibly daunting, yet unbelievably appealing. Pioneer 10 was sent out in the same spirit as the pioneers of early America: the lure of seemingly boundless space and undiscovered wonders.
This pioneer is blazing a trail we all hope to follow someday. Goodbye Pioneer 10, you have served us well.
Re:Distance. (Score:5, Interesting)
ObHHGTG (Score:5, Funny)
Just time for another bath! Pass me the sponge, would you?
Re:Distance. (Score:2)
Plenty of room for Matrix plotline expansion if the dodging-bullets-in-the-Matrix thing gets old: let's see how far the AI has gone in terms of space research. Would make it pretty interesting if an alien race began attacking Earth because they viewed it as a hostile Borg-like planet. Perhaps some of the less hostile AI, which we get to see in some of the upcoming sequels, would join forces with the humans to defend the planet.
Anyway...it's not my job to come up with plot devices and make Hollywood any more money!
Re:Distance. (Score:3, Funny)
Of course this will disrupt earths weather pattersn and the AI will send someone back in time to 1980s San Fransisco in order to capture two completely sentient members of the human race.
This is getting confusing. I wonder if they'll run into Sara Conner.
Re:Distance. (Score:5, Informative)
Very good chance, though i think by pass you mean go farther out. I just can't see one pulling up and going by it in the passing lane. Make for fun video though.
Anyways. This is the problem with earth ship ideas and such. You build a huge ship and start leaving earth today, then 10 years later another group does. They by then have developed a faster earth ship, and soon pass you by. Thus you wasted years in space you could have been on earth.
We have much faster probes today. Ion engine powered one could probably catch up to it fast. I remember a TLC episode or similar talking about them and how fast they go. They don't start fast but they just keap accelarating forever (pretty much) so they hit insane speeds. The thing we sent to that astoroid and landed on had an ion engine. It traveled way faster then anything else we ever put out there.
Re:Distance. (Score:3, Interesting)
You have to have the ability to manufacture anything that Earth can simply to stay alive during the trip, so all you then need are the plans/templates, which is simple communication.
So you start, improve your ship and speed up. No time wasted, and you still get there first.
Unless of course someone invents FTL, in which case, you can't get the plans before they show up and say "hi".
It's the same with hard computer problems. Sure, it may get faster later, but you start now and improve the hardware as you go. Don't assume a closed system!
Jason Pollock
Re:Distance. (Score:5, Insightful)
I think you mean Deep Space 1 [nasa.gov], which has an ion engine and flew within 1,400 miles of comet Borelly. A little extra duty for that spacecraft, not unlike Pioneer greatly exceeding expectations. The one that landed on an asteroid was NEAR Shoemaker [jhuapl.edu], but it has normal thrusters. Both where extraordinary missions.
Re:Distance. (Score:3, Funny)
I wonder if someday we will pick Pioneer up again, or just let it drift forever. Were all probes sent with the "mankind peace" plaque? (the one that depicts a man and women and some other stuff that I can't remember)
Voyager had a disc. (Score:5, Informative)
The Voyager probes were sent out with a gold disc which contains, amongst other things, greetings from Kurt Waldheim (former Secretary-General of the UN) amongst ones in a bunch of languages, the "sounds of Earth", including Beethoven and Chuck Berry, the sound of waves against the shore, and various other things, and a bunch of images of Earth life, as well as some instructions as to how to play the disc. It was Carl Sagan's project, IIRC.
Of course, the odds of the probes ever being detected by extra-terrestrial intelligence is virtually zero, given their slow speed, tiny size, and the fact that they don't emit any signals (or more precisely won't by the time ET is in a position to spot them).
Re:Voyager had a disc. (Score:5, Funny)
I imagine the first interstellar war will start when an alien civilization "pirates" that copyrighted Chuck Berry recording and the MPAA comes to collect royalties.
Re:Distance. (Score:2)
It was the armies that came later that wiped out/corraled up the Indians.
Perhaps there are things we have learned from our history, that we will remember not to repeat.
Also, I was talking about the spirit of exploration, not the effects of civilization.
If you take offense at my use of the word civilization, what I mean by it is building farms, houses, and cities.
Re:Distance. (Score:2)
Paraphrase from "Apollo 13" (Score:3, Insightful)
Farewell, Pioneer. And we thank you.
-Mr. Fusion
DSN (Score:2)
We should retrieve it someday (Score:5, Insightful)
Of course, my other half tells me, for the same reasons, let it alone, in space, quietly, where its home is.
Re:We should retrieve it someday (Score:5, Insightful)
Re:We should retrieve it someday (Score:3)
Not too shocking... (Score:5, Interesting)
Has SETI given up on it, too? I know they would do an informal test on their equipment by looking for the Pioneer 10 signal. SETI has been having problems tracking it for a few years at least... here's something Jill Tarter wrote about it. [msn.com]
If a nuclear war or asteroid or other event destroys all of humanity, probes like this will be our only legacy...
Re:Not too shocking... (Score:4, Funny)
Radioisotopes (Score:2)
It would be great if we could roll radioactive waste into similar devices to power cars, remote buildings, or even laptops--if we could effectively shield the power source with a small light enclosure.
Re:Radioisotopes (Score:5, Interesting)
You dont have a clue. A nuclear submarine has 1 battery compartment. This battery is your 50 gallon drum nuclear battery. Those types of batteries have a lifespan (in the submarine) of about 20 years. For that 20 years, it takes care of propulsion, air bladders, CO2 scrubbers, and the 90V AC (I cant remember the freq offhand).
For disposal, they seal these drums in bigger drums with the bottom of the bigger drum a lead/concrete mesh. They proceed to pour the similar mixture all around the barrel, sealing it totally. Then they lift it 2 miles down a hole in a mountain (Nevada). Once a floor is done, it's sealed by concrete and then a hatch is rivited and then soldered on.
For what it's worth, ALL the nuclear waste in the US would fit in the dimensions of the football field 6 feet deep. Compare that to COx, NOx, SOx and other organic crap floating from tailpipes. After what I've seen, nuclear is the safest fuel, given non-idiots tending the reactor. You've never heard of a US nuclear powered sub go critical and meltdown. You wonder why? They arent the dumbasses like 3MI. Island.
From somebody who knows a little too much.
Re:Radioisotopes (Score:3)
You're definitely right about nuclear is by far the safest energy available today. Its problem is that the word "nuclear" scares the bajesus out of folks who don't know any better.
Re:Radioisotopes (Score:3, Funny)
Re:Radioisotopes (Score:5, Informative)
Its a Lie (Score:2, Funny)
Verizon Commercials (Score:5, Funny)
"Can you hear me NOW?!?"
Amateur time (Score:5, Interesting)
Perhaps all you amateurs with radio telescopes out there should ask NASA nicely (through whatever an organisation preferably) for the frequency and lcoation data that is not publicly available and do a big combined search.
Do you have procedures/software for doing VLBI? It would be a good project to do build it around if you do not already.
A few hours a day or days a month and you might still get some useful data from it.
Re:Amateur time (Score:5, Informative)
" The antennas must capture Voyager information from a signal so weak that the power striking the antenna is only 10 exponent -16 watts (1 part in 10 quadrillion). A modern-day electronic digital watch operates at a power level 20 billion times greater than this feeble level. "
Then again I am no radio expert so maybe what you describe is feasible.
Re:Amateur time (Score:5, Informative)
Am I missing something here? (Score:5, Insightful)
Re:Am I missing something here? (Score:3, Insightful)
On the cover of the book is a photo of two humans against a field of stars, mimicing the plaque that Dr. Sagan designed to be affixed to Pioneer 10.
This book was a personal gift from Carl to me. We "lost contact" with Dr. Sagan some years ago.
So, Carl, ya done good, and I miss the bloody hell out of you. Goodnight and God bless.
KFG
Ha! (Score:5, Interesting)
Re:Ha! (Score:5, Informative)
Apples and oranges. More like apples and rocks. First off, your metaphor breaks down as soon as you describe Pioneer 10 as a "satellite." It is most definately not a satellite.
Communications satellites are put into earth-orbit with more transponders than you'd care to shake a stick at, its intention being to relay as many communications signals as it can back and forth between ground-based stations. Pioneer was built with one transmitter to beam back periodic signals.
Communications satellites aren't built to last much longer than a few years to begin with. There is no reason to design one to last more than a dozen years or so when communications technology will outstrip the capabilities of the satellite in that time, requiring a replacement. It took Pioneer over a year just to get anywhere.
Communications satellites are only 8.5 light-minutes or so from the sun, so there isn't any reason to put a more durable or expensive power supply on them beyond solar panels and batteries for night-time operation. Jupiter alone is more than four times that distance away, and the technology limitations of the time required a (much) more durable atomic solution.
Geostationary satellites have to deal with those pesky laws of physics that dictate that they will always eventually fall out of orbit. Sure, they don't have to deal with atomspheric drag like LEO objects, but momentum transfer is still an issue. Pioneer isn't a satellite in the remotest sense of the word: It's obviously beyond escape velocity for our solar system, which means it will never come back.
"Pioneer went through the asteroid belt"
Lay off the Star Wars. Mass density in that region isn't anywhere near what Hollywood thinks it is. Space debris in earth orbit poses a far greater hazard than passing through the main asteroid belt.
"Can't we build reliable satellites of yesteryear?"
The true "satellites of yesteryear" aren't there any more. Try and find three US satellites still in earth orbit that were launched before, say, 1985.
Now, if you want to talk about space probes, why would we build another Pioneer or even a Voyager when we could build another Magellan or Galileo?
Goddamn (Score:5, Insightful)
See what happens when you actually give your space programme decent funding? You do something like this, something which comes close to making the human race look like something more than six billion savages scrabbling in the dirt.
Re:Goddamn (Score:2)
It's still serving part of its mission. (Score:5, Interesting)
Re:It's still serving part of its mission. (Score:5, Informative)
Pioneer 10 is dying... (Score:5, Funny)
(you can shoot me now)
Icon of the Space Age (Score:5, Informative)
I remember a newspaper cartoon from the day. A man in a business suit and a woman in a dress were looking at the plaque on Pioneer, which was half buried in the ground. The man said to the woman, "They seem very similar to us, except that they don't wear clothes."
Re:Icon of the Space Age (Score:5, Informative)
So let's go pick it up. (Score:5, Funny)
We do have hyperdrive, right?
I mean, it's 2003.
We were supposed to be mining Jupiter's moons by now.
We can't go get one little probe?
What have we been doing with the last 30 years?
It might have discovered anomolous gravity (Score:5, Interesting)
By the way, a similar anomoly is seen in Pioneer 11 and another distant satelite (Ulysses perhaps???).
Also, there is a link at nasa.gov, but at this time it seems broken. I include it for completeness here. [nasa.gov]
It seems John Anderson and friends have written several articles on this. One which you might find interesing has been published in Physical Review D: here. [aps.org]
Somewhere at NASA... (Score:5, Funny)
Release it to the Public Domain (Score:5, Interesting)
Pioneer's camera was unique (Score:3, Interesting)
The closest visual analogy I can think of is a phonograph record. The needle can only move right-to-left, so it relies on the rotation of the record to bring the different "sound spots" into "view". IIRC, the probe rotated at something like 6 times per minute. The 1D "stream" of light intensity readings was then reconstructed into a 2D image back here on Earth.
Re:communication via relay? (Score:5, Informative)
NASA is researching the possibility of setting up a network of satellites around the solar system that can relay information.
Mars, infact, has 2 relay satellites (MGS and ODY) in orbit that can relay information from rovers/landers/etc from the ground. More will be entering orbit still (ESA's, and another mars orbiter for 2005 or 2007 i think). They will all have the ability to relay information. The beagle lander will rely on this, for example.
But there is a problem. Those satellites can only relay signals from mars (in orbit, or on the ground). They cannot pick up a signal from Jupiter or Saturn, and retransmit it to earth because they do NOT have a reciever big enough to do that.
NASA's DSN (look it up) has 100 foot dish antennas to pick up signals from the outter solar system.
You CANNOT fit a 100 foot dish to a satellite and orbit it around Mars or Jupiter, etc, to pick up signals from further out and relay them to earth. Its simply not possible.
Because of this, spaceprobes can only relay signals to Earth from signals which are near by. Hence, MGS or ODY relaying from landers on he surface of mars, or Cassini relaying data from the huygens probe.
Cassini can't pick up signals from a probe around Nepture or Uranus and relay it to earth, because it just cannot possibly have a powerful enough reciever since that requires a huge dish.
One option, however, is to use laser (optical) instead of radio transmission, which may make this possible.
That may still have many other problems of its own, however.
D.
Re:communication via relay? (Score:3, Funny)
Probably more like uww.spaceparts.co.tx.us.sol.arm17.milkyway .
Re:82,000 mph !!!!! (Score:5, Interesting)
Re:Never again, anything like it. (Score:3, Interesting)
The Voyager 1 [nasa.gov] probe is more distant than Pioneer 10, and will probably expire within 20 years.
Re:Never again, anything like it. (Score:4, Interesting)
I only wish I were as elegant in wording as Carl Sagan:
Reflections on a Mote of Dust
We succeeded in taking that picture, and, if you look at it, you see a dot. That's here. That's home. That's us. On it, everyone you ever heard of, every human being who ever lived, lived out their lives. The aggregate of all our joys and sufferings, thousands of confident religions, ideologies and economic doctrines, every hunter and forager, every hero and coward, every creator and destroyer of civilizations, every king and peasant, every young couple in love, every hopeful child, every mother and father, every inventor and explorer, every teacher of morals, every corrupt politician, every superstar, every supreme leader, every saint and sinner in the history of our species, lived there on a mote of dust, suspended in a sunbeam.
The Earth is a very small stage in a vast cosmic arena. Think of the rivers of blood spilled by all those generals and emperors so that in glory and in triumph they could become the momentary masters of a fraction of a dot. Think of the endless cruelties visited by the inhabitants of one corner of the dot on scarcely distinguishable inhabitants of some other corner of the dot. How frequent their misunderstandings, how eager they are to kill one another, how fervent their hatreds. Our posturings, our imagined self-importance, the delusion that we have some privileged position in the Universe, are challenged by this point of pale light.
Our planet is a lonely speck in the great enveloping cosmic dark. In our obscurity--in all this vastness--there is no hint that help will come from elsewhere to save us from ourselves. It is up to us.
It's been said that Astronomy is a humbling, and I might add, a character-building experience. To my mind, there is perhaps no better demonstration of the folly of human conceits than this distant image of our tiny world. To me, it underscores our responsibility to deal more kindly and compassionately with one another and to preserve and cherish that pale blue dot, the only home we've ever known.
-- Carl Sagan (1934-1996)
You can see the image referred to in the article here [nasa.gov].
(In all honesty, I believe this image was from Voyager, but Pioneer had the same view and I felt it only appropriate.)
Fare well, Pioneer.