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Mars Rover Opportunity Working Free

VernonNemitz writes "As previously reported, the Mars rover Opportunity ran into more sand (or finer material) than it was designed to handle. While initial attempts to escape may not have accomplished much, the most recent efforts seem to imply that the plucky machine is going to succeed at getting away."

106 of 149 comments (clear)

  1. Its been ... by Anonymous Coward · · Score: 4, Funny

    Clamped by Martians.

    1. Re:Its been ... by Anonymous Coward · · Score: 2, Funny

      better call angle grinder man!

  2. That's nice by chris09876 · · Score: 4, Insightful

    I guess moving 7.4 centimetres is better than nothing :) It's good they didn't give up on the rover... I'd like to say they've really gotten their moneys worth with these guys, but it's hard to measure the economic payback of the whole "mars exploration" thing... it's more of a long-term investment.

    1. Re:That's nice by Buran · · Score: 1

      They're taking it slowly to ensure that nothing goes wrong. Once the rover drives up and out of the dune, it will then be directed over firmer-looking terrain back toward its original objective, but they want to be sure they understand how it's reacting as it moves.

    2. Re:That's nice by lheal · · Score: 1
      I guess moving 7.4 centimetres is better than nothing

      As long is it's not moving down.

      --
      Raise your children as if you were teaching them to raise your grandchildren, because you are.
    3. Re:That's nice by Rei · · Score: 5, Interesting

      It's amazing to see the news (and especially slashdot) making such a big deal over the dune. The only reason that it took so long was because the NASA team, cautious as they were, were spending their time recreating possible scenarios in an oversized sandbox with an Opportunity replica, and trying them out. If you follow the mission, the scientists never sounded particularly concerned.

      Following missions in detail, by the way, is a good way to get an idea of how overcautious these people generally are, even on missions where stuff ends up going wrong. Getting a craft to Mars and making it function there isn't easy, and following a mission (and craft design) in depth really pushes that home.

      Plus, lets not forget that Mars is protected by a Galactic Ghoul that ate 4 out of 5 Soviet craft launched at it. ;)

      --
      I believe Bird-Person can arrange that.
    4. Re:That's nice by Fear+the+Clam · · Score: 4, Funny

      The only reason that it took so long was because the NASA team, cautious as they were, were spending their time recreating possible scenarios in an oversized sandbox with an Opportunity replica, and trying them out.

      And I suppose that making all of those "rumm rummm" noises was science too, hmm?

    5. Re:That's nice by jafac · · Score: 1

      that's farther than my cheap-ass WalMart mars rover's moving.

      --

      These are my friends, See how they glisten. See this one shine, how he smiles in the light.
    6. Re:That's nice by sevinkey · · Score: 1

      Since these things are lasting so long, I wonder how much less it would cost to mass produce these rovers... maybe cover the moon (i know moondust is harsh) with them or something. I bet a dozen of these on things on the moon could give us some economic payback within our lifetimes.

    7. Re:That's nice by petermgreen · · Score: 4, Interesting

      i'm not sure overcautious is the word i'd say given the fact the fucking thing is on mars they NEED to be extremely cautious.

      how many sysadmins can honestly say they've never fucked something up on a remote box? now when you fuck up a box in a colo it may well cost you a couple-hundred dollars and/or hours of travel time to fix so you take care!

      now imagine your box is somewhere you CAN'T go and fix it and has all sorts of mechanical parts to fuck up. you are going to be extrodinerally carefull.

      do you really think the rovers would have lasted this long if driven with a gung-ho attitude?

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
    8. Re:That's nice by sillybilly · · Score: 1

      I wonder what the ping-time is - that is, you issue a command, it flies for a few minutes with the speed of light in space, reaches the rover, then it answers back with diagnostics/images. Talk about lag - it's kind of like playing with a very very slow response joystick - you tilt it left then back, twiddle your thumb for a few minutes to see if it worked.

    9. Re:That's nice by Dun+Malg · · Score: 1
      Since these things are lasting so long, I wonder how much less it would cost to mass produce these rovers... maybe cover the moon (i know moondust is harsh) with them or something. I bet a dozen of these on things on the moon could give us some economic payback within our lifetimes.

      They don't really have the capacity to perform any useful work, so their net productivity is a negative number. With 12 of them the "payback" is that negative number times 12. "I know we're selling below cost, but we make up for it in volume!"

      --
      If a job's not worth doing, it's not worth doing right.
    10. Re:That's nice by petermgreen · · Score: 1

      i'm posting this reply without karma bonus as i suspect this is a troll.

      i highly doubt the rovers could do the kind of speeds needed to make that significant.

      and ofc if you do speed along then you generally end up in an even worse state when you realise something has gone wrong!

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
  3. Re:Ahhh come on!!! by StratoChief66 · · Score: 5, Funny

    This is the obligatory middle so they can post a story tomorrow about how it is totally stuck again.

    --
    Frylock: "We should have cloned twenties, Jackson wouldn't have given a fuck."
  4. Kudos to NASA and team! by guyfromindia · · Score: 5, Insightful

    This is great news... The rovers have been going on WAAY beyond their intended lifespan... Maybe we all can learn from the excellent design/descipline that the Engineers used to create these wonders!

    1. Re:Kudos to NASA and team! by Valiss · · Score: 1

      If I could agree with you more, it would mean I have a mod point to give.

      Good work to the NASA team.

      --

      -Valiss
    2. Re:Kudos to NASA and team! by Anonymous Coward · · Score: 1, Insightful

      I agree as well. They said the same thing about Voyager 2. And it is still running and moving on. Cheers to NASA.

    3. Re:Kudos to NASA and team! by Peldor · · Score: 5, Funny

      Actually it turns out there was a confusion in the units.

      The specifications committee set a working lifespan of 100 days, and the design team thought they meant fortnights.

    4. Re:Kudos to NASA and team! by Robocrap · · Score: 1, Interesting

      excellent design/discipline? seems pretty easy to me:

      Step 1: Create a good product with an intended lifespan of 2 years
      Step 2: Tell everyone that you've created a good product with an intended lifespan of 3 months
      Step 3: Receive accolades for going on "WAAY" beyond said product's intended lifespan.

    5. Re:Kudos to NASA and team! by vsprintf · · Score: 2, Insightful

      Step 2: Tell everyone that you've created a good product with an intended lifespan of 3 months

      There is a real difference between the official, designed lifespan and the expected (or hoped for) lifespan. The widget is truly supposed to function for the official lifespan in order to fulfill the main mission objectives. If it doesn't, it fails the mission. After that time, the mission is a success, no matter how you look at it, and the secondary objectives, extra telemetry, whatever, are gravy as long as NASA is willing to fund the continuing mission operations.

      We have satellites that are way (a decade or more) beyond their designed lifespan, and running out of fuel. It's a good thing they have lasted as long as they have, since certain administrations are more interested in diverting funds to proposed missions that generate headlines instead of missions that provide us with information we need daily about our own planet. Now, big business is asking for a law that will prevent government agencies from allowing the public to access weather data that the taxpaying public paid for because businesses could make more profit by reselling the data. Sometimes I wanna barf.

  5. Yeah by Anonymous Coward · · Score: 5, Funny

    "I guess ... 7.4 centimetres is better than nothing"

    Yeah, that's what your girlfriend said!!!

    1. Re:Yeah by NanoGator · · Score: 5, Funny

      "Yeah, that's what your girlfriend said!!!"

      Nailing a dude's gf is cool, but what she said about you was pretty cold.

      --
      "Derp de derp."
    2. Re:Yeah by beauzo · · Score: 1

      Now you see what happens when you mix up your units?

    3. Re:Yeah by Thaelon · · Score: 1

      Yeah right. Like he has a girlfriend. You are on Slashdot, remember?

      --

      Question everything

  6. Episode III at the Megaplex by lexbaby · · Score: 2, Funny

    It was easy, they just had to tell it that it could see R2D2 at the local cinema.

    --
    lexbaby
    "Be Brave, Be Loyal, Be True." -- Hawkeye Pierce
  7. Monster Garage needs to build the next rover by green+pizza · · Score: 3, Funny

    Am I the only one who thinks NASA / JPL needs to outsource the next rovers to a Monster Garage* build team?

    *Monster Garage is a reality show on The Discovery Channel in which a team of professional and hobbyist mechanics build a vehicle related contraption in 5 days.

    1. Re:Monster Garage needs to build the next rover by rdwald · · Score: 5, Funny

      Am I the only one who thinks NASA / JPL needs to outsource the next rovers to a Monster Garage build team?

      Yes.

    2. Re:Monster Garage needs to build the next rover by eln · · Score: 3, Funny

      Either that or send a small solar-powered tow truck along with every rover. Of course, the towtruck would probably break the rover loading it up, and then bill NASA directly because their rover insurance company refuses to honor the roadside assistance section of their policy because the tow truck wasn't owned by an authorized wrecking company.

      See, this is why the folks at NASA get the big bucks, they have to deal with all of this crap.

    3. Re:Monster Garage needs to build the next rover by Ours · · Score: 1

      Oh dear, I can't believe the Discovery Channel has a "pimp my ride up" thing going on. With an annoying WWF-stlye announcer screamin everything and a host that looks like he busted out of a prison. Man, I used to watch that channel for interesting documentaries. What the hell hapened?

      --
      "You superiour intellect is no match for our puny weapons" - The Simpsons
    4. Re:Monster Garage needs to build the next rover by visgoth · · Score: 1

      The tyranny of the masses is what happened. Pimped out, bling-bling cars, WWF announcer wannabes and escaped convict look-alikes appeal to the unwashed, drooling, idiotic masses than interesting, enlightening documentaries.

      --
      My patience is infinite, my time is not.
    5. Re:Monster Garage needs to build the next rover by visgoth · · Score: 1

      Bleh. Premature post buttonitis. Need more coffee. This is what I meant to say: The tyranny of the masses is what happened. Pimped out bling-bling cars, WWF announcer wannabes, and escaped convict look-alikes appeal more to the unwashed, drooling, idiotic masses than interesting, enlightening documentaries. In short, blame the ratings system.

      --
      My patience is infinite, my time is not.
    6. Re:Monster Garage needs to build the next rover by vsprintf · · Score: 1

      Hear, hear! Wait, this is Slashdot -- I mean here, here!

    7. Re:Monster Garage needs to build the next rover by quarkscat · · Score: 1

      Wrong. Wrong! WRONG!

      NASA/JPL needs to get away from the whole concept of rovers -- everybody knows that modern-day Rovers spend way more time in the shop than in the outback, and cost a fortune to cover towing and repair costs.

      What NASA/JPL really needs to focus on are the next generation of the extra-terrestrial mobile drilling rigs that they thoroughly trashed on that asteroid in "Apocalypse". A couple of those rigs soft-dropped onto Mars and there would be no question about whether (or how much) water ice exists on the Red Planet.

      Whichever team wins the DARPA 10 mile desert road course should be given first crack at the opportunity. Of course, the DoD might have to cut short their "field training exercises" in the Middle East in order to help pay for these rigs, but that would be a small price to pay in the long run.

      Gentlemen, start your engines! Voroom! Voroom! Voroom!

  8. Update: Spirit and Opportunity by Anonymous Coward · · Score: 5, Informative

    SPIRIT UPDATE: Spirit Observing 'Reef' - sol 477-482, May 17, 2005

    Spirit remains in excellent health. On sols 477, 478 and 479 (May 7 to May 9, 2005), Spirit made observations with remote-sensing instruments and analyzed soil targets with its alpha particle X-ray spectrometer and Mössbauer spectrometer. Spirit then performed a short drive to a target called "Keel," on the outcrop called "Jibsheet." On sol 481, Spirit was able to begin observing a target called "Reef," using the microscopic imager and performing a 16-hour integration with the alpha particle X-ray spectrometer. On sol 482 (May 12), Spirit continued work on Reef with instruments on the robotic arm, and performed a 21-hour integration with the Mössbauer spectrometer.

    Spirit's total odometry as of May 12, 2005, is 4,341.19 meters (2.70 miles).

    Spirit Update Archive

    OPPORTUNITY UPDATE: Progress Inch-by-Inch for Opportunity - sol 465-466, May 17, 2005

    On Opportunity's first three drives to get out of the sand trap, the rover has advanced a total of 7.4 centimeters (2.9 inches) in getting off the dune. Each of the first two drives -- one on sol 463 and one on sol 465 -- turned the wheels about two and a half rotations, enough to drive two meters (7 feet) if there were no slippage. Images from the hazard-avoidance cameras taken during the drives show that some of caked powder adhering to wheels between cleats had come off. The team was encouraged by the results, and decided go ahead with a 4-meter (13-foot) commanded drive for sol 466.

    Sol-by- sol summaries:

    Sol 465 (May 15, 2005): Opportunity rotated its wheels in a series of 10 steps, each step enough to roll 20 centimeters (7.9 inches) if there were no slippage. The wheels are slipping a great deal in the sand of the dune, but the rover advanced better than anticipated from simulated tests, covering 1.9 centimeters (0.7 inch). The rover used its panoramic camera for observations of the sky and dunes.
    Sol 466 (May 16, 2005): Results from the sol 465 drive were good (some wheel cleats are clean and the rover is making forward progress), so the team commanded a drive that, if there were no slippage, would roll 4 meters (13 feet), consisting of ten 40-centimeter (16 inch) steps. Opportunity gained an additional 2.7 centimeters (1.1 inch). The panoramic camera made more observations of the atmosphere and dunes.

    1. Re:Update: Spirit and Opportunity by dr_dank · · Score: 4, Funny

      On Opportunity's first three drives to get out of the sand trap, the rover has advanced a total of 7.4 centimeters (2.9 inches) in getting off the dune.

      With any luck, it'll make par and really show that Tiger Woods a thing or two.

      --
      Where does the school board find them and why do they keep sending them to ME?
    2. Re:Update: Spirit and Opportunity by deglr6328 · · Score: 1

      For those wanting more in depth detail on the whole thing, check out the always fantastic unmannedspaceflight.com. They've already made several animations from the hazcams showing Oppy's progress. There is always something really neat to see there.

      --
      - "Hear that?! The percolations are imminent! Cease your ingress!"
    3. Re:Update: Spirit and Opportunity by snake_dad · · Score: 3, Interesting

      It already struck a hole-in-one when it landed exacly inside Eagly Crater. Principal Investigator Steven Squyres was quoted as saying something like not even Tiger Woods could ever be expected to make that shot.

      --
      karma capped .sig seeking available Slashdot poster for long-term relationship.
  9. Good Job by AT-SkyWalker · · Score: 5, Insightful
    When this first happened I remember I read somewhere that the NASA engineers outlined their trouble shooting approach by indicating that they will try to duplicate the situation here on earth and will study every maneuver before performing anything on the real thing on Mars so they won't have to resort to forceful trial and error maneuvering

    This is a shinning example that meticulous work and systematic thinking eventually gets the job done, even if it sounds boring and even if a "quick fix" seems really sexy


    Good Job NASA.
    1. Re:Good Job by mbrod · · Score: 1

      It is also a good example of why everything they do costs so much and takes so long to do.

      Even though the unsexy-boring-overanalyzed way to go is the correct one the majority of the time, someone with the balls to put the hammer down, shake the steering wheel and yell yippee is exactly what is needed every now and then.

      (In this case however I think the course of action has been correct, especially with how healthy that rover is. They may get A LOT more work out of her.)

    2. Re:Good Job by dgatwood · · Score: 2, Funny
      This is a shinning example that meticulous work and systematic thinking eventually gets the job done, even if it sounds boring and even if a "quick fix" seems really sexy

      Ob. Simpsons reference....

      Bart: Don't you mean shining?

      Willy: Shh. D'ya wanna get suuuued?

      --

      Check out my sci-fi/humor trilogy at PatriotsBooks.

    3. Re:Good Job by AT-SkyWalker · · Score: 1

      Is it the "Revenge of the Sith" or the "Revenge of the Spelling Nazis" :-D Cheers :-)

    4. Re:Good Job by Rei · · Score: 1

      Almost every time you see "the hammer put down" in space exploration, it has been a Bad Thing(tm). Remember "Faster, Better, Cheaper"? Remember the effects of budget cuts during design and construction of the shuttle on its maintenance costs? Etc?

      You don't rush or underfund some of the most failure-intolerant and technologically complex missions humans ever take part in (note: this isn't simply a reference to the rovers themselves, but everything needed to get them from the assembly building to exploring the planet). A single minor glitch on such a complex system in such environmental and stress extremes, and it's often all over.

      --
      I believe Bird-Person can arrange that.
    5. Re:Good Job by vsprintf · · Score: 1

      A single minor glitch on such a complex system in such environmental and stress extremes, and it's often all over.

      A poor choice of words perhaps. If it's "all over," then it's a catastrophic failure, not a minor glitch. Witness the Beagle, and previous probes.

    6. Re:Good Job by Rei · · Score: 1

      By "minor glitch" I mean "minor oversight", "minor piece of inaccurate data", etc, that causes a fault.

      --
      I believe Bird-Person can arrange that.
    7. Re:Good Job by vsprintf · · Score: 1

      By "minor glitch" I mean "minor oversight", "minor piece of inaccurate data", etc, that causes a fault.

      I fail to see the distinction. Anything that causes catastrophic failure, by definition, is not "minor". The failure to upgrade thermostatic switches on an oxygen tank aboard Apollo 13 was hardly a "minor oversight". The standards conversion fiasco on a previous Mars probe may have been a simple mistake, but it was in no way a "minor piece of inaccurate data" -- it was a major mistake. Pick a different adjective.

  10. This never shoulda happened by nizo · · Score: 4, Funny

    They should have packed a trunk monkey on the rover. Even if he could only hold his breath for 30 seconds, he would have plenty of time to pull the rover out and still be able to squeegie the solar panels clean.

  11. This reminds me... by RootsLINUX · · Score: 1

    Of the story "The Little Engine That Could".

    "I think I can! I think I can! I think I can!

    Kinda makes me want to cheer our little martian rover on. "Come on buddy! Just a little bit more! Come on!"

    --
    Hero of Allacrost, a FOSS RPG for *NIX/*BSD/OS X/Win
    1. Re:This reminds me... by Bad+to+the+Ben · · Score: 1

      Oh, you mean that one by Major Payne? Here, I adapted it for you:

      Once upon a time deep, deep in the Martian samds, there was a little rover that could. He was chugging his way acroos the desert..... Chuggah chuggah chuggah chuggah chuggah chuggah chuggah chuggah- TOOT TOOT! This little rovers's mission was to take some AK-47's and nuclear bombs over the mountain to the twenty sixty three battalion. Needless to say, there was plenty of opposition. You think that stopped the little rover that could? No sir! He just kept chugging along.... Chuggah chuggah chuggah chuggah chuggah chuggah chuggah chuggah- TOOT TOOT! Not even when the NASA engineers eyes popped out and blood and snot was drippin' out of his eye socket... U think that stopped the little rover that could? Damn skippy! He just kept chugging along.......... Chuggah chuggah chuggah chuggah chuggah chuggah chuggah chuggah- TOOT TOOT! It wasn't till Martians covered the crater with plastic explosive. Just as the little rover was crossing the crater- BOOM! An explosion happened and blood n guts and wires and circuit boards was everywhere. Bubba came crawling out the backdoor with both legs missin'. Lula Mays babyboy! He looked at me and said "I can't feel my legs!" I said "Bubba! They aint there" and I looked down and them little bloody pieces were kickin' real fast. I said "Bubba, it's 350 000 miles to the nearest planet. Unless u can flip upside and walk on your hands, you aint gonna make it..." All of a sudden, the Martians was all over the place, it was just me and my gun and I had no other alternative but to blast my way out... BAM! I saw what you did to my space program, BAM! BAM!

      Pleasant dreams.

  12. slippage by farker+haiku · · Score: 1
    On Opportunity's first three drives to get out of the sand trap, the rover has advanced a total of 7.4 centimeters (2.9 inches) in getting off the dune. Each of the first two drives -- one on sol 463 and one on sol 465 -- turned the wheels about two and a half rotations, enough to drive two meters (7 feet) if there were no slippage.The team was encouraged by the results, and decided go ahead with a 4-meter (13-foot) commanded drive for sol 466.


    So we can expect Opportunity to move approximately 5.8 inches next? Talk about baby steps.
    --
    Your sig(k) has been stolen. There is a puff of smoke!
  13. Just do like Homer by green+pizza · · Score: 2, Funny

    Just do like Homer and drive off with the clamp/boot still attached to the tire.

  14. The Little Rover That Could... by RuneB · · Score: 2, Insightful
    It is interesting that these rovers have exceeded all initial expectations. Every once in a while, something happens to one of the rovers that people say will make it unusable, and the rover has overcome whatever problem occurred and continue onward. I wonder how much of this is just because of good engineering by all the people involved in making the rovers, and how much of it is just plain luck.

    Eventually of course, something will happen to make a rover unusable, but it is interesting that the rovers have lasted this long.

    --
    dtach - A tiny program that emulates the detach feat
    1. Re:The Little Rover That Could... by DunbarTheInept · · Score: 1

      I don't believe they exceeded expectations. I think the expectations were understated on purpose - using the worst case scenario.

      --

      Don't label something "offtopic" unless you know the topic well enough to tell what's on topic.

    2. Re:The Little Rover That Could... by Nivoset · · Score: 1

      that and i bet it gives a nice pump up to say we made somethign that worked longer and harder than we thought it would! we rule!!! give us money!

      --
      Movies made by a crazy person

      http://www.youtube.com/marginalpro
    3. Re:The Little Rover That Could... by mollymoo · · Score: 1

      The rovers have exceeded their design specification lifetime, but how different would the design of a rover to last 2 years be to one designed to last 3 months? I suspect not very different at all.

      --
      Chernobyl 'not a wildlife haven' - BBC News
    4. Re:The Little Rover That Could... by DunbarTheInept · · Score: 1

      There isn't any difference between saying "X is greater than Y" and saying "Y is less than X". It's purely a matter of connotation. The fact is they EXPECTED these to last longer than the MINIMUM time they were built for. What the motivation was for that is secondary and irrelevant to what I said. What you expect from something you build is different from what you guarantee from something you build.

      For example, if I run an RS323 serial cable 30 feet when the spec only guarantees it up to 25, I still *expect* it to work, more than likely, but I wouldn't guarantee it.

      --

      Don't label something "offtopic" unless you know the topic well enough to tell what's on topic.

  15. Practicle Joke by lbmouse · · Score: 4, Funny

    Maybe it's becuse it's a Friday afternoon following a long week... but wouldn't it be fun to sneak up to Mars and plays some jokes on the JPL guys? Wait for them to go to bed each night and move the rover 10 feet.

    Is it time to go home yet?

    1. Re:Practicle Joke by Tablizer · · Score: 1

      wouldn't it be fun to sneak up to Mars and plays some jokes on the JPL guys? Wait for them to go to bed each night and move the rover 10 feet.

      JPL press conference:

      "Well, uh, we decided as a team to uh....switch on the Flux Capacitor, and wallaah!"

  16. Mars rovers working free?!?! by __aamcgs2220 · · Score: 2, Funny

    Oh great! There goes the economy! If they're working free it's going to lower the bar on wages for the rest of us! How's a guy supposed to afford a gold-plated Ferrari when the rovers are working free?

    1. Re:Mars rovers working free?!?! by Tablizer · · Score: 1

      There goes the economy! If they're working free it's going to lower...

      Not just "offshoring", but now they're offplaneting our jobs

  17. make robots very flexible by ch-chuck · · Score: 1

    maybe extraterrestrial robots should go with a vast assortment of tools and materials - you never know what you'll run into untill you get there and the ground teams seem quit adept adept at coming up with solutions - provided they have the tools and materials, like a general purpose arm (make that TWO arms, in case one breaks the other can fix it) and a storage locker full of duc[t,k] tape.

    --
    try { do() || do_not(); } catch (JediException err) { yoda(err); }
    1. Re:make robots very flexible by jd · · Score: 3, Insightful

      Doubling the components more than doubles the probability of a fault developing, so that's really a Bad Idea, although it sounds good at first. What would be better would be a way for system components to repair themselves (therefore making spare parts unnecessary), and for components to be over spec by enough of a margin that potential situations are within the design tolerences, rather than so close to the limits.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    2. Re:make robots very flexible by ch-chuck · · Score: 2, Interesting

      Not necessarily - a raid 1 (mirror) disk is much more reliable than a single disk, and it's exactly double the components - you're spreading the risk. By having two independant robot arms, each one is as likely to fail as having just one, but you still have a working arm. What you're talking about is double the complexity in a single system - I'm talking about fault tolerant redundancy.

      Actually the whole point of my suggestion is just to have a more flexible platform for the ground team to work up solutions with, whatever form it might take. They seem to be pretty good at it, often going beyond the design limitations. Think of what they can accomplish with designed in freedom to reconfigure the mission while it's in progress??

      --
      try { do() || do_not(); } catch (JediException err) { yoda(err); }
    3. Re:make robots very flexible by jd · · Score: 3, Insightful
      Yes, fault tolerence through that kind of redundancy (similar to a scheme Sir Clive Sinclair proposed, about 20 years ago) would certainly improve reliability. As demonstrated by Sir Clive, such a design is practical and workable, and I would agree with you that using it would produce a more flexible, more reliable device.


      Sir Clive's "Great Idea" was to use wafer-scale integration to produce massive redundancy of any given electronic component, and then use filesystem/networking techniques for marking bad regions and routing round them. What you'd end up with is a chip that could take massive punishment and survive physical destruction of even large portions of the surface.


      That would cover electronic systems, and mechanical systems could be duplicated with some sort of tie-in. For example, if joint A on robot arm A fails, and arm B is physically linked, then you can use joint A on arm B as a stand-by.


      If, then, joint B on arm B failed, you could still use joint B on arm A, for the same reason, giving you fail-over at the component level, not the device level.


      That would be something that NASA should definitely explore, and schemes like it, as ways to improve the flexibility and durability of the hardware it launches.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  18. Re:nice by Monkeman · · Score: 1

    Correction: Use the boost to chase!

  19. "hello, OnStar" by visionsofmcskill · · Score: 4, Funny
    Onstar: "hello, onstar"

    Customer: "help, im stuck in a sand dune"

    OnStar: "ok, you seem to be off our GPS grid for some reason, can you tell me where you are?"

    Customer: "mars"

    OnStar: "......."

    Customer: "hello?"

    OnStar: "just, uh, keep spinning your tires..."

    --
    --Idiots, Every single one of YOU, A flaming mass of conglomerated morons, hey wait a second, isnt that how RAID works?
    1. Re:"hello, OnStar" by jd · · Score: 1

      Write in to them - see if they'll do it for their next advert. It's way better dialog than they usually use.

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    2. Re:"hello, OnStar" by vpetersen · · Score: 1

      Such a conversation would have seconds - or even minutes if Mars is located on the other side of Sun compared to Earth - of pausing between each line.

      Anyone would like to make bets on which rover lasts longer?

    3. Re:"hello, OnStar" by colinrichardday · · Score: 1

      Actually, it would be minutes even if they were on the same side of the Sun. The closest that Earth and Mars get is roughly fifty million miles, which would require roughly 250 seconds to send a radio signal between the two.

  20. Hackneyed by Skiron · · Score: 5, Insightful

    It is a terrible shame when quite unbelievable stuff goes on, and is treated as mundane.

    To me, being born before the space race, man on the moon etc., this is still fascinating. Why current the current generation is interested in the slightest, I don't know.

    What all these guys are doing was totally unthinkable 20 years ago.

    Lets hope we will get another 20 years when the next generation filter through.

    1. Re:Hackneyed by teeker · · Score: 1

      I agree with you on the comment about kids these days, and how fascinating it really is.

      But I think it's worth mentioning that Viking 1 (the original Mars lander) landed on Mars almost 30 years ago, so this kind of thing wasn't totally unthinkable 20 years ago.

      But this is something that is teaching us loads about our universe and I am also suprised about how little most people (even a lot of so-called geeks) seem to give a rip.

      --
      teeker
    2. Re:Hackneyed by coldmist · · Score: 1

      Ohhh, so close.

      Done 25 years ago by the Russians: http://www.synlube.com/moon.htm

      Should have been: totally unthinkable 40 years ago

      --
      Don't steal. The government hates competition.
    3. Re:Hackneyed by Anonymous Coward · · Score: 1, Insightful

      It tells us quite a lot of things actually. Just getting stuck in the sand dune is educational, since we now have data on tire design and traction from the rover wheel design and experiments.

      The tires currently on your car would probably never get out of a sand drift. Maybe in a few years people can develop tread designs that not only cut through water puddles but through sand dunes.

    4. Re:Hackneyed by imperious_rex · · Score: 1

      I agree with you, although I think it's a tad harsh. The problem isn't unique to today's current generation. After the first 2 or 3 moon landings, the public started to regard such things as almost routine, the same for the shuttle program (until something goes Horribly Wrong). So I think it's just an unfortunate aspect of human nature to become rather unexited about something once the novelty wears off. The same will happen when we return to the moon again, and again after the first "footprints & flags" Mars landing.

  21. Re:News? by Buran · · Score: 1

    There are those of us that care. Just like there are those who care whenever Darl gets a zit on his ever-lengthening nose.

  22. Re:Yea, more money wasted. by susano_otter · · Score: 3, Insightful

    So you say.

    You may disagree with how the government spends your money, but at least NASA has to work for its pay.

    This differs greatly from welfare, where you get paid for not working.

    Wake me up when welfare recipients contribute half the science NASA does.

    --

    Any sufficiently well-organized community is indistinguishable from Government.

  23. Rover working free. by corngrower · · Score: 1

    Well it's a robot. It should work for free. Especially if its solar powered.

  24. Plucky? by jaymzter · · Score: 1

    Uh-oh, I bet R2D2 is gearing up for a bitch slap!

    --
    If thou see a fair woman pay court to her, for thus thou wilt obtain love
  25. Heinz Wolff... by jd · · Score: 1

    ...would be better, he could probably get the same hobbyists to build a Mars Rover out of household items - AND carry an egg without breaking it - in the 30 minutes of The Great Egg Race.

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  26. AAA by wowbagger · · Score: 4, Funny

    Hey zplork, looks like that funny car has a problem again.

    What, solar panels dirty again? We just cleaned them last week!

    Naw, it's stuck in the sand.

    Fuggit - let AAA* take car of it!

    (*AAA - Aries Automobile Association).

  27. Not on Slashdot... by EnsilZah · · Score: 2, Funny

    Trying to make fun of someone on slashdot by mentioning he has a girlfriend?
    I think you should reconcider this course of action...

  28. Re: Obligatory Star Trek Reference by Anonymous Coward · · Score: 1, Funny

    No, the rover team included Trekkies who knew they were communicating between Mars and Earth over an open channel, so they used standard code to describe time units in case Khan was listening. In accordance with Starfleet regs and all.

  29. Heh... by Matilda+the+Hun · · Score: 1

    Who else read that and thought "Wait, it was getting paid before?"

    --
    Tluin natha Linux xxizzuss uriu olt bwael mon'tun.
  30. Re:nice by JFitzsimmons · · Score: 1

    Nice. I hope I wasn't the only one who got that...

    --
    Beware he who would deny you access to information, for in his heart he dreams himself your master. -Anonymous
  31. HiLift jack! by nelsonen · · Score: 1

    They forgot the HiLift jack!

  32. JFK and Marilyn by wheelbarrow · · Score: 1

    Actually, I think it's being held onto by JFK and Marilyn Monroe. They are just off camera and it's their little joke after being banished to Mars by a conspiracy of Free Masons. This is the most fun they've had since JFK went limp in 1995 and they had to stop boinking.

  33. Re:Monster Garage - Red Thunder by richyoung · · Score: 2, Insightful

    Sounds like the John Varley novel "Red Thunder", in which a magic power source removes any weight concerns WRT spaceflight payloads, and the first people on Mars are able to take along an actual hopped-up pickup truck to cruise around the dunes of mars.

    --
    6. Audible Alarm (not shown)
    -from a Cuisinart product owner's manual.
  34. I would tend to agree. by jd · · Score: 1
    The discovery of a new species of primate, the latest achievements in stem cell engineering, the medical crisis created by the combined Marburg and Ebola outbreaks, the UK's plan to host a massive windfarm to meet Kyoto obligations, even the social impact of Ivan Noble's brain tumor diaries - these are science news that are actual news.


    A Martian rover that has completed an initial test move, but where NASA can't be 100% sure how successful it was yet - all they know is that the wheels look less caked than they did - is not really much of an update. We do need more information, for this to be a story.


    On the flip-side, Slashdot is predominantly tech nerds, and a tech story (however limited) IS going to appeal to more people than ANY of the other science stories in the news, no matter what the relative merits.


    That isn't a criticism of Slashdot - I'm part of that tech audience, even though I do have interest in other science stories - it is merely the reality on the ground. Slashdot is going to post stories with a solid appeal to the core audience, and nobody can fault it for doing so.


    I would LIKE to start a parallel news service, with sections on different scientific fields, that emphasised the NON-tech scientific achievements, as I'm sure there's an audience for something like that. I don't have the kind of money to start such a venture, though. Unlike many of the news blogs out there, I believe it would be possible to have quality stories that paid for themselves. Slashdot is hardly perfect, but has a provably large audience and demonstrates the potential you can reach IF you can get something people want.


    What would other people think of such a scheme?

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    1. Re:I would tend to agree. by jd · · Score: 1
      Yes, I am. For several reasons. They're OK sites, but:
      • The subject range tends to be limited (which means you've got to trawl lots of sites to get any decent bredth)
      • Where there is bredth, it is hard to look through, because they present EVERYTHING, as opposed to something like the Slashbox system
      • There's no moderated commentary (as per Slashdot and similar sites), which means that the ideas presented are unchallanged and unchallangable except either by established academics (who can make it through peer-review) or by the original peer-reviewers - this means that the flexibility and immediacy of the Internet is completely negated and you might as well have a Dead Tree Edition
      • There's often limited or no cross-referencing - which makes it hard to see what OTHER theories and results are on the same subject, which often means looking through citation indexes and cross-referencing offline sources and citers
      • Submissions are often from published peer-reviewed sources only - peer-review is a Good Thing, but if all you have is essentially a cached or deep-linked copy of what someone else has written, where is the added value?

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
  35. -1 Redundant Joke by Ninwa · · Score: 1

    Same joke in the last Mars rover post...

    Nothing's new under the... mars?

  36. 4 days old news. Still not out by Frans+Faase · · Score: 2, Interesting

    Please note that the last report is from May 16. That is four whole days ago. There are some images of three days ago. I guess they haven't made any substantial progress in the past days. To me it seems that they did go backwards a little, but there are also signs that some of the wheels are digging in. And they are still not out of the track. I wonder if they will ever manage to get out of them. It seems to me that the top layer of the sand was actually a little stronger than the stuff below it, and I wonder whether they will be able to get on top of it again. I guess that there is still a substantial chance that Opportunity will not get out, and that this is going to be the resting place of the rover. And mind you, that does not mean the end of science work. There is still much to learn from the daily remote sensing operations. And of course, they will make every attempt to get the rover moving again. Time is on their side.

  37. Re:yeah ! by Electronik · · Score: 2, Funny

    You mean:

    "watch that mother burn silicon dioxide", which is in fact 'burnt' already, and wouldn't burn any more in the thin martian atmosphere.

    Sorry for sucking the fun out of that one...

    --
    -=test-sig_0.1.5(NoWhitespaceVersion)=-
  38. Free - Free at Last! by WillAffleckUW · · Score: 1

    I have a dream!

    And operational wheels ...

    --
    -- Tigger warning: This post may contain tiggers! --
  39. Re:Phew by NoseBag · · Score: 4, Interesting

    Actually, I believe both missions together cost only $800 million.

    A mere pittance...especially when you consider all the "techno-wood*" that has been generated so far. God know how many geekitos and geekitas have been conceived since mission start.

    *Techno-wood is copyleft 2005 NoseBag. Use it at your own peril. I did.

    --
    Cloned foods give the statement "We had that last week!" a whole new meaning.
  40. That is Good by ndansmith · · Score: 1

    Thank God, because I heard that NASA's AAA coverage was not renewed by congress.

  41. Better wheels...???? by zappepcs · · Score: 1

    I remember seeing some science show about this rover and the exhaustive efforts that they went through to design and test the wheels in various conditions.

    Perhaps I'm simplifying it, but for all the money the spent on the wheels, they could have designed them to have inflatable monster-mudder style blades, like tractor tires have, to pop out of the surface when needed, such as has been the case recently????

  42. The Little Rover That Could... by QuietLagoon · · Score: 1

    I think I can... I think I can... I think I can...

  43. Free as in beer? Or free as in speech? by Anonymous Coward · · Score: 1, Funny

    Neither, it seems. We will have to add another one... "Free as in Mars Rover".

  44. Re:Yea, more money wasted. by Nivoset · · Score: 1

    except you earn money by gambling your hard earned money into the whole deal. you give them money to use, if they make a profit... you get more back...

    --
    Movies made by a crazy person

    http://www.youtube.com/marginalpro
  45. Movies of front and rear hazcam wheels by Thagg · · Score: 1
    I've made movies of the images posted on the MER website over the last few days of Opportunity's front left and right rear wheels. It's clear that they're making considerable, consistent (if slow) progress. In particular, in the last couple of days the front wheel has begun to slog its way through the dirt, where it had just been digging in for the first three days.

    I've got the movies up on my ADSL line at

    front hazcam
    rear hazcam

    Higher bandwidth mirrors would be most appreciated

    Thad Beier

    --
    I love Mondays. On a Monday, anything is possible.
  46. Rename it R2D2 by colinrichardday · · Score: 1

    If the machine is that plucky, it deserves a better name!

  47. Re:Monster Garage - Red Thunder by vsprintf · · Score: 1

    Sounds like the John Varley novel "Red Thunder", in which a magic power source removes any weight concerns WRT spaceflight payloads, and the first people on Mars are able to take along an actual hopped-up pickup truck to cruise around the dunes of mars.

    Not having read it, did this pickup not have an ICE, or was the requisite oxygen magically supplied on Mars as well?

  48. Working Free? by kybred · · Score: 1
    Working Free? Is there no minimum wage on Mars?

    kybred

  49. Working Free? by kristopher · · Score: 1

    You know, they also call that slave labor.

  50. And their solution was what???? by bgarcia · · Score: 1
    So, after very careful, thorough analysis of the situation, including attempts to simulate the exact conditions here on earth, what was the team's decision?

    It sounds like "Ah hell, just gun it!"

    --
    I'm a leaf on the wind. Watch how I soar.
  51. Re:Monster Garage - Red Thunder by richyoung · · Score: 1

    They gutted the drivetrain in favor of a fuel cell and four independent electric motors in the hubs. Then they went off-roadin'!

    --
    6. Audible Alarm (not shown)
    -from a Cuisinart product owner's manual.
  52. The sign cleary states,"No Parking" by LifesABeach · · Score: 1

    Now someone from JPL has to go to Mars to pay the fine, or risk being toed.