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Mars Robot May Destroy Life It Was Sent To Find

Hugh Pickens writes "New Scientist reports that instead of identifying chemicals that could point to life, NASA's robot explorers may have been toasting them by mistake. Even if Mars never had life, comets and asteroids that have struck the planet should have scattered at least some organic molecules over its surface but landers have failed to detect even minute quantities of organic compounds. Now scientists say they may have stumbled on something in the Martian soil that may have, in effect, been hiding the organics: a class of chemicals called perchlorates. At low temperatures, perchlorates are relatively harmless but when heated to hundreds of degrees Celsius perchlorates release a lot of oxygen, which tends to cause any nearby combustible material to burn. The Phoenix and Viking landers looked for organic molecules by heating soil samples to similarly high temperatures to evaporate them and analyse them in gas form. When Douglas Ming of NASA's Johnson Space Center in Houston, Texas, and colleagues tried heating organics and perchlorates like this on Earth, the resulting combustion left no trace of organics behind. "We haven't looked the right way," says Chris McKay of NASA's Ames Research Center. Jeffrey Bada of the University of California, San Diego, agrees that a new approach is needed. He is leading work on a new instrument called Urey which will be able to detect organic material at concentrations as low as a few parts per trillion. The good news is that, although Urey heats its samples, it does so in water, so the organics cannot burn up."

129 comments

  1. We can't let them kill the Mars life by BadAnalogyGuy · · Score: 5, Funny

    I suggest we send someone back in time to prevent the robot from killing the life on Mars.

    1. Re:We can't let them kill the Mars life by robably · · Score: 4, Funny

      Is there a Bad Analogy Guy fan club? Or t-shirt, hat, walking stick, mouse pad, frisbee, wallpaper or carpet? Bad Analogy of the Day desk calendar? iPhone App? Your ideas intrigue me, I would like to subscribe to your newsletter. Or RSS feed, whichever.

    2. Re:We can't let them kill the Mars life by drinkypoo · · Score: 4, Funny

      Is there a Bad Analogy Guy fan club?

      Yes. Much bigger than yours, maybe half the size of mine (and thank you for your support.) :D

      Anyone who says slashdot isn't a game isn't paying attention.

      --
      "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
    3. Re:We can't let them kill the Mars life by Faylone · · Score: 2, Informative

      Actually, yes. You can get an RSS feed for ANY user on Slashdot in their profile.

    4. Re:We can't let them kill the Mars life by Caledfwlch · · Score: 1

      or at least send a very sincere apology to the Martian Ambassador

      --
      These views express my own personal opinions, not those of the other voices in my head
    5. Re:We can't let them kill the Mars life by Anonymous Coward · · Score: 0

      Maybe there exists a Heisenberg Uncertainty principle applied to alien life?

    6. Re:We can't let them kill the Mars life by djupedal · · Score: 1

      I said from the beginning that this was just a college recruiting stunt.

      The dolts associated with this program should never have been allowed near any equipment in the first place...great waste of money, once again.

    7. Re:We can't let them kill the Mars life by Anonymous Coward · · Score: 0

      i say skip it and switch to terraforming.

    8. Re:We can't let them kill the Mars life by denshao2 · · Score: 1

      We should just stop sending Daleks to Mars.

    9. Re:We can't let them kill the Mars life by Anonymous Coward · · Score: 0

      Anyone who says slashdot isn't a game isn't paying attention.

      "A strange game. The only winning move is not to play." -A.C.

    10. Re:We can't let them kill the Mars life by Anonymous Coward · · Score: 0

      Why do I expect "NASA also needs to cut back some personnel" in tomorrow's headlines and "Govt. sending more funds to NASA" the day after?

    11. Re:We can't let them kill the Mars life by Anonymous Coward · · Score: 0

      Red Planet Van Kilmer survives exploding bugs. now we know why they exploded... perchlorates!

  2. What by Brian+Gordon · · Score: 1

    comets and asteroids that have struck the planet should have scattered at least some organic molecules

    Why would we expect comets or asteroids to carry organics? Haven't they been around much longer than life?

    1. Re:What by thirty-seven · · Score: 3, Informative

      Why would we expect comets or asteroids to carry organics? Haven't they been around much longer than life?

      • A) Because we know that comets, asteroids, and other interstellar objects and dust do contain organic chemicals: see astrochemistry
      • B) Because organic chemicals have also been around much longer than life has. You may be interested to know that vitalism has been discredited by the synthesis of urea.
      --

      Atheism is a religion to the same extent that not collecting stamps is a hobby.

    2. Re:What by Bigjeff5 · · Score: 1

      "Organic" chemicals are not the same as that organic food in the grocery store. Organic chemicals are any chemical based on carbon. This includes all life on earth, and quite a bit of not-life on earth.

      --
      Security is mostly a superstition... Avoiding danger is no safer in the long run than outright exposure. - Helen Keller
    3. Re:What by mbone · · Score: 1

      Why would we expect comets or asteroids to carry organics?

      Because we know that they do.

      Some meteorites, the carbonaceous chondrites, are chock full of organic material. They came from some asteroid or asteroids. Organic materials seem especially common in the outer part of the main asteroid belt.

      Comets have been found to have all sorts of organic materials in them.

      Note that organic just means that it contains carbon compounds, not that it was produced by living things.

  3. So it makes soup? by Onyma · · Score: 3, Funny

    Mmm... organics boiled in water. Now I know what I'm having for lunch.

    --
    Play me online? Well you know that I'll beat you. If I ever meet you I'll "/sbin/shutdown -h now" you. -Weird Al, kinda.
    1. Re:So it makes soup? by Onyma · · Score: 2, Funny

      Yes, replying to myself with an afterthought. Isn't this basically what we did to most of the life on our own planet? "Broiled or boiled, what would you prefer?"

      --
      Play me online? Well you know that I'll beat you. If I ever meet you I'll "/sbin/shutdown -h now" you. -Weird Al, kinda.
    2. Re:So it makes soup? by Anonymous Coward · · Score: 0

      Mmm... organics boiled in water. Now I know what I'm having for lunch.

      Yeah, I thought that was a bit odd. Specifically:

      The good news is that, although Urey heats its samples, it does so in water, so the organics cannot burn up.

      If by "burn" they mean oxidation, It seems that the distinct lack of oxygen would have taken care of that. If they meant something other than the commonly understood meaning of "burn", like maybe phase changes or the denaturing of proteins, it'd be nice of them to have specified. Although, I think the atmosphere of Mars is so thin that it's almost a vacuum compared to that of Earth, so maybe some special measures had to be built into Urey to accommodate liquid water with which anything could be boiled.

    3. Re:So it makes soup? by Eternauta3k · · Score: 1

      the distinct lack of oxygen would have taken care of that

      Perchlorates. RTFS

      the atmosphere of Mars is so thin that it's almost a vacuum compared to that of Earth, so maybe some special measures had to be built into Urey to accommodate liquid water

      Closed containers?

      --
      Yeah. Would you choose a neurosurgeon who pokes around people's brains in his spare time? I wouldn't.
    4. Re:So it makes soup? by Artifakt · · Score: 1

      The point is, the perchlorates already in Martian soil are oxidizers. They do provide plenty of free Oxygen when they are heated, and so yes, what happens to the organic compounds being heated with them IS oxidation. The scientists are using burn up in its normal sense.

      --
      Who is John Cabal?
    5. Re:So it makes soup? by Anonymous Coward · · Score: 0

      Mmm... organics boiled in water. Now I know what I'm having for lunch.

      Not just soup... Primordial Soup.

  4. In other words, HG Wells had it backwards by Zocalo · · Score: 4, Funny

    So, instead of the Martians coming here, blowing stuff up and then catching a cold and dying out, we go there, give them heat and wipe them out first? I suppose the best defense really is a good offense!

    --
    UNIX? They're not even circumcised! Savages!
    1. Re:In other words, HG Wells had it backwards by JustOK · · Score: 2, Funny

      Where's the kaboom? There was supposed to be a Mars-shattering kaboom!

      --
      rewriting history since 2109
    2. Re:In other words, HG Wells had it backwards by newcastlejon · · Score: 2, Funny

      This way we get to keep their stuff, if you're going to raze you might as well pillage!

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    3. Re:In other words, HG Wells had it backwards by Anonymous Coward · · Score: 0

      If Americans want to be the leading country and representing Earth, all what we get from that is all aliens against us, while Americans are blaming aliens as terrorists!

      US just goes to other countries, blows stuff up, kill civilians and builds up a Muppet government. And when people there are f* up and tries to get US out of the country, US says to world that civilians are terrorists, ask president to give a order to use military to kill them and get bigger budget and so on.

      And same thing would happend on universum size...

    4. Re:In other words, HG Wells had it backwards by Abreu · · Score: 1

      Invaders from the dreaded blue-star!!

      --
      No sig for the moment.
    5. Re:In other words, HG Wells had it backwards by Anonymous Coward · · Score: 0

      A pre-emptive strike on Mars? We've exported the Bush doctrine to space?

      Great, now some pissed off alien species is going to fly a couple of spaceships into Japan and Taiwan.

    6. Re:In other words, HG Wells had it backwards by rdwald · · Score: 1
  5. Bring water to mars by pipatron · · Score: 1

    OK, so now they are going to bring water to Mars as well? Might as well bring bacteria and other life as well and contaminate away..

    --
    c++; /* this makes c bigger but returns the old value */
    1. Re:Bring water to mars by newcastlejon · · Score: 1

      They'd make a killing in the cremation biz.

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    2. Re:Bring water to mars by Patch86 · · Score: 1

      1: Mars has water. http://en.wikipedia.org/wiki/Water_on_mars

      2: We can make water almost pure H2O. http://en.wikipedia.org/wiki/Pure_Water

      3: Bacteria doesn't live exclusively in water. If were were going to contaminate the place, the large pieces of complex machinery should do the trick just as well as a small vial of water...

    3. Re:Bring water to mars by KudyardRipling · · Score: 0

      Perchlorates? Gather all the obsolete black toners for the old HP's and Lexmarks and send them with the manned Mars mission.They can make all the solid rocket fuel needed for the return trip!

      --
      Submission as evidence constitutes plaintiff and/or prosecutorial misconduct.
  6. FAILED! by Anonymous Coward · · Score: 0

    This is a miserable fail on the part of humanity...

  7. 2.45 GHz by JustOK · · Score: 0, Redundant

    Wouldn't em with a wavelenght around 12.24 cm at 2.45 GHz have been quicker, and with a nice satisfying PING when done?

    --
    rewriting history since 2109
    1. Re:2.45 GHz by Viraptor · · Score: 0, Redundant

      > em with a wavelenght around 12.24 cm at 2.45 GHz

      Redundant information is redundant. Besides, that's a wavelength of ~54 potrzebie

    2. Re:2.45 GHz by moosesocks · · Score: 2, Informative

      Wouldn't you want to use an IR Spectrometer?

      I'm actually somewhat surprised that we've never sent one up to Mars, given that you can find one in most research facilities today.

      --
      -- If you try to fail and succeed, which have you done? - Uli's moose
    3. Re:2.45 GHz by _ivy_ivy_ · · Score: 0, Redundant

      Redundant information is redundant.

      This message was brought to you by the Ministry, Department, Bureau, and Directorate for the Promulgation and Distribution of the Excessive, Superfluous, Gratuitous, and Redundant.

    4. Re:2.45 GHz by Anonymous Coward · · Score: 1, Interesting

      "Wouldn't you want to use an IR Spectrometer?"

      A number of infrared spectrometers have been sent to Mars, both on orbiters and rovers. It is, however, very difficult to see the spectroscopic signature of organics when they are at low concentrations in a soil/mineral matrix.

  8. Some NASA engineer laughs... by Anonymous Coward · · Score: 1, Funny

    Some NASA engineer laughs quietly to himself, knowing he prematurely stopped the Martian invasion of Earth before it even had a chance to begin.

  9. Man,it took a rocket scientist to figure that out? by Anonymous Coward · · Score: 0
    Ha ha ha, get it?

    Also, did I ever tell you the time I was a programmer for Microsoft and worked on DOS? I have a funny anecdote about it that'd be completely true, if it weren't false.

  10. Simple explanation.. by gbutler69 · · Score: 5, Insightful

    Organic "compounds" can be created (and often are) through other processes other than life. So, even if there were NO life on Mars, there should be some organic compounds. The fact that they are not finding any, combined with the finding of perchlorates (i.e. used for rocket fuel, explosives, etc) shows that there is something wrong with their experimental set-up.

    --
    Over-the-top Response Guy! Giving "Over-the-Top Responses" since 1970.
    1. Re:Simple explanation.. by Koby77 · · Score: 1

      Or (Occam's razor) organic compound formation is a very rare process.

    2. Re:Simple explanation.. by bcmm · · Score: 1, Insightful

      Did you mean to put quotes on "organic", not on "compounds"?

      --
      # cat /dev/mem | strings | grep -i llama
      Damn, my RAM is full of llamas.
    3. Re:Simple explanation.. by Ian+Alexander · · Score: 3, Informative

      The only problem with that is that it's not a very rare process. Seems like every other week some scientist has looked somewhere odd you'd never suspect and has found organic chemistry happening there. All life (as we know it, Jim ;)) is organic chemistry, but not all organic chemistry is life.

  11. Didn't they test this before? by societyofrobots · · Score: 2, Insightful

    I see it odd they didn't even test the chemical detector process in realistic simulant soil before launching it to Mars . . .

    1. Re:Didn't they test this before? by Anonymous Coward · · Score: 0

      I see it odd they didn't even test the chemical detector process in realistic simulant soil before launching it to Mars . . .

      And how were they supposed to obtain a realistic simulant soil? Finding perchlorate was unexpected.

    2. Re:Didn't they test this before? by Anonymous Coward · · Score: 0

      How the hell were they supposed to know what a "realistic simulant soil" would contain before running it through a chemical detector process?

    3. Re:Didn't they test this before? by DerekLyons · · Score: 2, Informative

      Before the launched the chemical detectors to Mars, they didn't have a real good idea what chemicals were present in the soil in order to develop the a realistic simulant.

    4. Re:Didn't they test this before? by PaganRitual · · Score: 1

      This really is insightful, the mods are correct. In fact, what they really should have done, in order to get a truly realistic soil, was send a probe to mars with chemical detectors so they could discover the contents of the soil, and send those details back so they could create a satisfactory example soil, and test the probe's chemical detectors on that. You should apply to NASA, they could use brains like you.

    5. Re:Didn't they test this before? by societyofrobots · · Score: 1

      A soil sample return can be amazingly useful, if anything. Tons of advances have been made by doing a moon soil sample return, and companies even sell 'regolith', or moon soil simulant. Definitely something that needs to be done with Mars soil!

  12. We come in peace! by Anonymous Coward · · Score: 0

    You come in peaces... :P

    1. Re:We come in peace! by Farmer+Tim · · Score: 1

      You come in peaces

      War machines come flat-packed? Good, we can defeat the Martian invaders with poorly translated assembly instructions.

      --
      Blank until /. makes another boneheaded UI decision.
  13. I'm worried by Norsefire · · Score: 1

    So we might have been inadvertently killing alien life? Like in Ender's Game, only we're killing them.

    1. Re:I'm worried by The+Archon+V2.0 · · Score: 1

      So we might have been inadvertently killing alien life? Like in Ender's Game, only we're killing them.

      Put more simply: Like Ender's Game, only we're the Buggers.

      Sounds 'bout right.

    2. Re:I'm worried by holmstar · · Score: 1

      I haven't read Ender's Game yet you insensitive clod. Next on my list though. I'll have to try to forget that bit of info.

  14. Wow, that sucks. by RabidMoose · · Score: 1

    It's got to be terrible, finding out after 5 years that the process you've been using was destroying the very thing you were seeking out.

    This is the discussion about the man with ovucidal sperm, right?

    1. Re:Wow, that sucks. by Anonymous Coward · · Score: 0

      One would think that this experiment was done before the probe was launched.

  15. what are we trying to prove then? by stabiesoft · · Score: 1

    So if there should be organic molecules present from comets, then what does it prove if we find them with the new test? It seems to me, that if we proved the test inaccuracte because there must be organics, then how does it prove there was life if there are organics? It sounds like we just spent a whole lot of effort to prove the experiemt was flawed.

    1. Re:what are we trying to prove then? by Anonymous Coward · · Score: 1, Informative

      The test doesn't merely return a yes/no, but it lists which organic molecules it found. Some organic compounds don't last very long, so they would indicate life.

  16. Apropos alien life by rkaa · · Score: 4, Interesting

    For the benefit of new readers and the general perspective; an old short-story by Terry Bisson: http://www.netfunny.com/rhf/jokes/96q1/meat.html
    It's a "must read" if you haven't, just give in and click the link.

    1. Re:Apropos alien life by Maelwryth · · Score: 1

      You're right, it is a must read. I thank you.

      --
      I reserve the write to mangle english.
    2. Re:Apropos alien life by Anonymous Coward · · Score: 0

      if you're about 9 years old perhaps.

    3. Re:Apropos alien life by Anonymous Coward · · Score: 0

      Sorry to hear of the death of your imagination and sense of humor.

  17. So let me get this straight.. by stonetony · · Score: 2, Funny

    They've built a perchlorate percolator?

  18. Misleading headline by noidentity · · Score: 5, Informative

    Mars Robot May Destroy Life It Was Sent To Find

    implies that it destroyed all life on the planet (the "life it was sent to find"). Instead, it sounds like its life detector merely destroys signs of life in the samples it's testing.

    1. Re:Misleading headline by mizhi · · Score: 1

      Mars Robot May Destroy Life It Was Sent To Find

      implies that it destroyed all life on the planet (the "life it was sent to find"). Instead, it sounds like its life detector merely destroys signs of life in the samples it's testing.

      The misleading, screaming headline keeps Slashdot's servers warm.

      --
      Humorless sig goes here.
    2. Re:Misleading headline by noidentity · · Score: 1

      I submit this as the next headline: Mars Robot May Spontaneously Undergo Nuclear Fusion, Releasing Huge Amounts of Energy that Melt Planet

  19. We don't take No as an answer by findoutmoretoday · · Score: 1

    Clever:
    Previous test where negative, but flawed.  So give us another billion and we will produce the new flawed life on Mars test.

  20. Sorry to reply to myself... by RabidMoose · · Score: 1, Flamebait

    ...but I think I just invented a new form of birth control. Just from a quick look over Wikipedia, and what I remember from college biology, there's multiple enzymatic exchanges between sperm and egg before fertilization can complete. So, it should be possible to engineer a relatively simple, non-hormonal drug for men to take, which would prevent sperm from being produced all of the necessary enzymes (or purposefully carry an improper, but similarly binding enzyme), which could effectively kill any receptive egg that the sperm came in contact with, rather than fertilizing it.

    Or am I completely delusional and in need of biology refresher courses? (it's entirely possible...)

    1. Re:Sorry to reply to myself... by camperdave · · Score: 2, Funny

      I am not sticking that part of myself into an oven, if that's what you're getting at.

      --
      When our name is on the back of your car, we're behind you all the way!
    2. Re:Sorry to reply to myself... by RabidMoose · · Score: 1

      Think of it as giving each of your little guys a microscopic explosive. They will train in one of two spec ops facilities, for one-time deployment. Upon sighting the overwhelmingly larger enemy, one will penetrate the defenses, reach the enemy nerve center, and detonate, destroying the enemy's ability to function, and thus saving you from 18-25 years imprisonment.

    3. Re:Sorry to reply to myself... by Anonymous Coward · · Score: 0

      ...but I think I just invented a new form of birth control. Just from a quick look over Wikipedia, and what I remember from college biology, there's multiple enzymatic exchanges between sperm and egg before fertilization can complete. So, it should be possible to engineer a relatively simple, non-hormonal drug for men to take, which would prevent sperm from being produced all of the necessary enzymes (or purposefully carry an improper, but similarly binding enzyme), which could effectively kill any receptive egg that the sperm came in contact with, rather than fertilizing it. Or am I completely delusional and in need of biology refresher courses? (it's entirely possible...)

      I think sometimes that we're not going to see a truly effective, cheap, widely available, non-surgical birth control drug/pill for men because the existence of such a thing would drastically reduce the population. I say that because I believe it's something we could have if we really wanted it, but instead birth control is in the hands of the segment of the population most likely to want children (i.e. women). This would also alter the balance of power between the sexes. Right now in the USA if you are a man and you impregnate a woman, she can abort the fetus or carry it to term and you have absolutely no say-so in the matter even though you may want the child and even though you'll have a legal obligation to support the child if it is born. This remains so even if you could prove that she misrepresented whether or not she was taking birth control, which should be treated like any other form of fraud. It's actually worse than most other forms of fraud, since those involve only property. We would treat that like fraud and prosecute it as such if we were interested in justice and if we were interested in using a reasonable deterrent to reduce the number of fatherless children. That is, then more women would either use birth control, tell their partner truthfully whether or not they are on birth control so he can make an informed decision, or choose to have sex only with men who want to have children. A male version of "the pill" would make all of this much less of a problem.

      There's another reason why you aren't likely to see a male version of "the pill." Governments and other powers-that-be generally want a higher population. If you ignore everything they say and look at what they do (which is how you should deal with governments and corporations anyway), you'll see that this is part of the reason why many countries have tax credits and other incentives for having children. More people = larger tax base. Not to mention that in the USA, a declining population would hasten the collapse of the Ponzai scheme known as Social Security. To understand the pattern of how such a thing would be suppressed while maintaining the illusion of a free market, just do some research into the high-MPG vehicles that have been around since about the 1960s.

    4. Re:Sorry to reply to myself... by djfuq · · Score: 0

      Get a vasectomy - it works wonders, got one when I was 20 - I am now 30, no kids and I have a sex - a lot.

      Good luck breeders!

      --
      Dj fuQ [url="http://djfuq.org"]djfuq urges you to listen to the beats[/url] [url="http://djfuq.org"]http://djfuq.org[
  21. What NASA by Fri13 · · Score: 0

    What NASA now tried to tell, is that they went to Mars with technology what wasn't tested on the Earth at all.

    We have very expensive small machine on Mars, what we use by remote control and delays of hours. And all what we can find out is that tests what it was doing, can not be succeed even on here on Earth!

    Great... So what is left to hand? Nice photos of Mars? Are those even real?

    We have so much problems to get even the satelites work on the Earth orbit by using current technology. And still decades ago we supposly went to moon landing and now we should be studying on the Mars and we fail on that too?

    And still we have more serious and basic problems on earth what could be solved with that money what is used to Mars study. If we just would want to.

    1. Re:What NASA by camperdave · · Score: 2

      Or better yet, just cut back your armed forces by 10%

      --
      When our name is on the back of your car, we're behind you all the way!
    2. Re:What NASA by holmstar · · Score: 1

      We didn't know that perchlorates existed in martian soil until the probe did its tests. We then realized that given the existence of perchlorates in the soil, our test would not give correct results. This is unfortunate in that our experiment "failed" to test what we expected it to, and yet we still learned something about martian soil. Given that new information, we can now send a new experiment that would be better able to test for organics in the presence of perchlorates. Thus the experiment didn't so much fail as it showed us the next step we need to take.

  22. take your pick by Anonymous Coward · · Score: 0

    1-told you so!

    2-this is why you don`t send a robot to do a Mans job

    3-epic fail

    or my personal favorite

    4-Hahahahahahhahahahahahahahaha

    robots? cheap? get off my lawn!!, you just wasted 3 decades dumbasses.

    yes!, I am for Manned spaceflight, NOT damn stupid overgrown Tonka toys and peoples excessive faith in em.

  23. Martian bonfires anyone ? by mbone · · Score: 4, Interesting

    The title is very misleading.

    No-one thought that heating samples to 400 or 600 C would be good for any bacteria. The point is that they thought samples would outgas any organics. Now it seems they might be burned in the process. But in neither case were these tests designed to keep microbes alive.

    Note that one implication here is that Martian soil will burn even under Martian conditions if you heat it properly - it has its own oxygen supply.

    Martian bonfires anyone ?

    1. Re:Martian bonfires anyone ? by CannedTurkey · · Score: 1

      No one thought that? Maybe someone should have bothered to test it.

      --
      Ingredients: Turkey, Mechanically Separated Turkey, Water, Salt, Flavour.
    2. Re:Martian bonfires anyone ? by Farmer+Tim · · Score: 2, Funny

      Martian bonfires anyone ?

      Didn't he write Born To Be Wild?

      --
      Blank until /. makes another boneheaded UI decision.
    3. Re:Martian bonfires anyone ? by Orange+Crush · · Score: 2, Interesting

      Note that one implication here is that Martian soil will burn even under Martian conditions if you heat it properly - it has its own oxygen supply.
      Martian bonfires anyone ?

      The soil itself won't catch fire. There just happens to be just enough perchlorate to combust the tiny amounts of organics at the right temperature. Heat the soil, it gives off a few wisps of smoke, maybe a sparkle or two. Not nearly enough to start a self-sustaining fire.

    4. Re:Martian bonfires anyone ? by DarkOx · · Score: 2, Insightful

      Test it on what all that other Martian top soil NASA has bags of in their garage?

      --
      Repeal the 17th Amendment TODAY! Also Please Read http://www.gnu.org/philosophy/right-to-read.html
    5. Re:Martian bonfires anyone ? by Stephen+Samuel · · Score: 2, Interesting
      OK: so the proper title would be: "...may destroy life signs it was sent to find."

      On the bright side, though, if we can show that Martian soil contains a big enough volume of perchlorates, it might be possible to use that knowledge to lower the payload of a manned mission (in-situ oxygen generation).

      --
      Free Software: Like love, it grows best when given away.
    6. Re:Martian bonfires anyone ? by mbone · · Score: 1

      The soil itself won't catch fire. There just happens to be just enough perchlorate to combust the tiny amounts of organics at the right temperature. Heat the soil, it gives off a few wisps of smoke, maybe a sparkle or two.

      And you know this, how ?

      Yes, it is unlikely that any given Martian soil will outright burn, but I would make a long bet that there will be some soil somewhere that does.

    7. Re:Martian bonfires anyone ? by holmstar · · Score: 1

      I'm sure that they DID test it, but given that they didn't know that perchlorates existed in the Martian soil, they probably didn't add any to their tests. Were they supposed to test soil with every compound known to exist and in every possible mixture? There is only so much you can do, and besides, the experiment still taught us something about mars.

  24. It has peaceful applications! by Bevilr · · Score: 1
  25. I guess this was Rocket Science! by Anonymous Coward · · Score: 0

    I guess this was Rocket Science after all! Perhaps they should have called in the real rocket scientists to test this!

  26. I am Lrrr by neural.disruption · · Score: 1

    from the planet Omicron Persei 8 and I want revenge for you have been killing our offspring in the nursery planet you Humans call Mars.

    1. Re:I am Lrrr by newcastlejon · · Score: 3, Funny

      Your cup of spunk is in the mail.

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    2. Re:I am Lrrr by Anonymous Coward · · Score: 0

      Well only a slashdotter to consider spunk his offspring.

  27. Paging Jackson Roykirk... by afabbro · · Score: 1

    So NASA creates a probe which is sent to find life but instead destroys it...

    ...I think I heard this story once or twice before...

    --
    Advice: on VPS providers
    1. Re:Paging Jackson Roykirk... by holmstar · · Score: 1

      It was always meant to heat the soil to a temperature that would likely kill anything in it, but the idea was that the heating would cause the organics to vaporize so that they could be sniffed by an instrument that can determine what types of molecules are present. We weren't trying to culture martian bacteria.

  28. microscope? by madcat2c · · Score: 1

    Cant we just put a strong microscope on these things?

  29. Yes we can by eclectro · · Score: 1

    I have never been a big fan of Martians since that incident at Grover's Mill that was covered up.

    Burn aliens, burn!

    --
    Take the cheese to sickbay, the doctor should see it as soon as possible - B'Elanna Torres, "Learning Curve"
  30. How it's supposed to be done. by had3l · · Score: 2, Interesting

    Ah, the Human way of finding life:

    Astronaut 1: "So, any signs of life?"

    Astronaut 2: *shooting a flamethrower at the ground* "None."

    Astronaut 1: "Ok, just to be sure let's blow everything up and scan the debris."

  31. Carl Sagan by Anonymous Coward · · Score: 1, Interesting

    In Cosmos, Carl Sagan mentions an experiment that got scrubbed off of the Viking probes because of a lack of room. I forget the scientist who cooked up the idea (Wolf-something??), but it was really simple. Send up a container of food for whatever life you're expecting, throw some dirt in their, and see if anything develops. It was basically a petri dish for Mars.

  32. midi-chlorian ?? by PermanentMarker · · Score: 1

    The Force potential of an individual was measured in sentient creatures by a midi-chlorian count. While both the Jedi and the Sith used the Force to gain their power, there were as many different groups of users and views of the Force as uses of the Force itself.

    --
    I know you're out there. I can feel you now. I know that you're afraid. You're afraid of us. You're afraid of change.
  33. Conquest of the New World by Anonymous Coward · · Score: 0

    We weren't very concerned about bringing horses, gunpowder and smallpox to the New World. And that 'only' killed millions of people.

    Yes, we should be careful, and yes, any definitive signs of life should be preserved as well as possible. But we really need to get over ourselves. If a Mars colony destroys bacteria which might evolve into life a billion years from now, then so be it. The survival and prosperity of the human race is far more important than a few microbes under a rock.

    1. Re:Conquest of the New World by Artifakt · · Score: 1

      The smallpox and gunpowder I'll give you, but I doubt that the horses killed millions, unless you mean they helped white guys chase the Native Americans down so they could be shot more easily. Might as well blame tarring ship hulls so bigger boats could transport the white guys over the Atlantic,

      --
      Who is John Cabal?
    2. Re:Conquest of the New World by Anonymous Coward · · Score: 0

      It was not my intent to 'blame' anything in particular, only to point out that we are always changing the environment, and That's Okay(tm), as long as we're smart about it.

      But you probably already knew that. Anyway...

      Onward to Mars!

  34. Robinson Crusoe on Mars... by CptNerd · · Score: 2, Informative

    Sounds like a major plot point of the old 60's movie "Robinson Crusoe on Mars", where the protagonist, a stranded astronaut, discovers that some rocks he found to put around his fire, release oxygen when heated (he discovers that just as he's running out of his bottled air). Sounds like it might be worth looking at as an oxygen source for colonies, if it produces enough O2 to be useful.

    --
    By the taping of my glasses, something geeky this way passes
    1. Re:Robinson Crusoe on Mars... by Jafafa+Hots · · Score: 1

      wait... he's running out of oxygen, and the rare oxygen he managed to find is locked inside rocks... released only be the heat of his fire. His WHAT? Fire? How the hell does he have a fire if the oxygen is so rare its locked up in rocks?

      --
      This space available.
    2. Re:Robinson Crusoe on Mars... by CptNerd · · Score: 1

      It's science fiction from the early 60's, it's not worth dwelling on...

      Actually, I can't remember exactly how he was doing it, but the story hinged on the fact that the pressure of the atmosphere was high enough to allow the guy to go without a pressure suit, but there wasn't enough free oxygen, so they played lots of liberties with the science. The only thing interesting was that accidental coincidence of oxygen-generating chemicals in the soil and possibly rocks, that were triggered by high heat.

      I recommend it for the story, if you can overlook the glaring science flaws.

      --
      By the taping of my glasses, something geeky this way passes
    3. Re:Robinson Crusoe on Mars... by belg4mit · · Score: 1

      Fire doesn't require oxygen, just as the root process of oxidation itself does not.
      For instance, most metals will burn in a chlorine atmosphere. This doesn't make the
      scenario any more likely, but your incredulity is unwarranted.

      --
      Were that I say, pancakes?
    4. Re:Robinson Crusoe on Mars... by holmstar · · Score: 1

      oxidation by definition requires oxygen.

      Burning, as a generic term for a exothermic chemical reaction, does not.

    5. Re:Robinson Crusoe on Mars... by belg4mit · · Score: 1

      No, sorry. Check your high school chemistry book or Wikipedia please.
      Oxidation is (roughly) the loss of electrons. It is the opposite of reduction.

      --
      Were that I say, pancakes?
  35. Somethng better then the Urey device. by PermanentMarker · · Score: 1

    The ultimate device to detect life on mars:


    The Uri geller device.


    Its better then the Urey device and comes with a free spoon!
    So you can digg into the soil there.

    --
    I know you're out there. I can feel you now. I know that you're afraid. You're afraid of us. You're afraid of change.
  36. War of the Worlds by Ambiguous+Coward · · Score: 1

    So in War of the Worlds when they tried to vaporize Tom Cruise, they were really just looking for life?

    "Any life out there?"
    "No, Captain, just a lot of small dust clouds. Nothing of interest yet."
    "Well, let me know if we find anything."
    ...
    ZZZZZZRRRRROWT

    --
    Their may be a grammatical error, misspeling, or evn a typo in this post.
  37. Re:Bring water to mars and some sharks by ae1294 · · Score: 1

    Might as well bring bacteria and other life as well and contaminate away..

    Yes we already did that so what is the next step? ... profit? http://www.wired.com/wiredscience/2008/08/the-dirt-on-mar/

  38. The dangers of space exploration by Anonymous Coward · · Score: 0

    When Douglas Ming of NASA's Johnson Space Center in Houston, Texas, and colleagues tried heating organics and perchlorates like this on Earth, the resulting combustion left no trace of organics behind.

    Dr. Ming will be missed.

  39. I don't want to set the world on fire by rabiddeity · · Score: 1

    I don't want to set Mars on fire,
    I just want to start a flame in its soil.
    In my heart I have but one desire
    And that's perchlorate, no other will boil.

    I've lost all ambition for Earthly acclaim
    I just want to find some oxygen
    And with the emissions with applied flame,
    I'll have found the little Martian men, believe me!

    I don't want to set Mars on fire,
    I just want to start a flame in its soil!

  40. Goodbad by Quiet_Desperation · · Score: 1

    The good news is that, although Urey heats its samples, it does so in water, so the organics cannot burn up.

    The bad news is that Urey is in San Diego, and not Mars.

    1. Re:Goodbad by Anonymous Coward · · Score: 0

      Urey is being developed by JPL, so it's actually in Pasadena, not San Diego.

  41. misapplied movie quote club by Quiet_Desperation · · Score: 1

    Anyone who says slashdot isn't a game isn't paying attention.

    "It was never meant to be a game!"

  42. Next up.... by PhreezeVi · · Score: 1

    Mars Robot May Drown Life It Was Sent To Find.

    Researchers now believe that throttling, smothering, and using a machete is the safest way to discover if there is indeed life on Mars.

    Also in the news - Why do aliens hate us so much?

  43. Maybe the sensors are accurate by Anonymous Coward · · Score: 0

    Maybe there is just no life on Mars.

  44. My thoughts exactly by SilverHatHacker · · Score: 0

    I had this great quote in my head, and I'm reading through the ~100 comments on the page thinking "YES! No one's said that yet!"... then I found yours at the very bottom.
    You've gotta love the mindset of "We didn't validate our hypothesis, our tests must be flawed."

    --
    Funny may not give karma, but +5 Informative never made anyone snort coffee out their nose.
    1. Re:My thoughts exactly by holmstar · · Score: 1

      You've gotta love the mindset of "We didn't validate our hypothesis, our tests must be flawed."

      Or, "We found unusual and unexpected data, thus we must determine whether our assumptions, or our method was flawed, or perhaps both".

      In the case of the mars mission, our assumption was that some detectable organics must exist on mars. We have detected organics in asteroids and comets, and we know that many asteroids and comets must have impacted mars, thus there should be detectable amounts of long lived organics on Mars. This is already generally accepted. Not to find ANY at all when executing the experiment strongly suggests that the experiment itself is flawed.

      Additionally, the probe detected perchlorates, which were not anticipated to exist in the soil. When we added perchlorates to a sample that was known to include organics and ran the experiment, no organics were detected.

      Thus, we know that the experiment was flawed and that we must devise a new experiment that can detect organics in the presence of perchlorates if we want a reliable answer.

    2. Re:My thoughts exactly by SilverHatHacker · · Score: 0

      That's very true, and that is how science should be done. However, sometimes scientists are unwilling to give up their 'pet theories' and persist in chasing rainbows. I've also heard it said that "The point [of a scientific experiment] is not to discover new things; it is to make yourself look good." Or something along those lines.

      --
      Funny may not give karma, but +5 Informative never made anyone snort coffee out their nose.
  45. Simmer gently... by SEWilco · · Score: 1

    It heats its sample in water. So it heats the frog slowly?

  46. So where do you get the water? by Photo_Nut · · Score: 1

    Don't you need to send water to Mars to do this new test?

    And just by sending these probes to Mars, don't we pretty much send a couple bacteria there, some of them theoretically can survive? What if we planted the life on Mars that we are looking to find? After all, the fact that we have successfully put down these robots onto the ground gently enough that they are sending back scientific evidence could be enough to ensure that any stow-away life was shielded from the effects of entering the atmosphere...

    Maybe this is a good thing, though... Maybe we have ensured that life will take hold on Mars, should we nuke the earth into oblivion.

  47. me fail chemistry? impossible! by Anonymous Coward · · Score: 0

    Wow, NASA needs to hire a chemist. If you heat organics with perchloric acid in water, they still oxidize down to CO2...

  48. Not surprising by anarkavre · · Score: 1

    If there is one thing humans are good at it's killing life. And no I am not some hippy ecologist. Just stating a fact. :P

    --
    "Without curiosity and knowledge, the mind is a vast void. Without the mind, curiosity and knowledge are nonexistent."
    1. Re:Not surprising by anarkavre · · Score: 1

      Actually environmentally would be the better word. Dumb ass.

      --
      "Without curiosity and knowledge, the mind is a vast void. Without the mind, curiosity and knowledge are nonexistent."
    2. Re:Not surprising by anarkavre · · Score: 1

      Environmentalist. Feel free to troll me.

      --
      "Without curiosity and knowledge, the mind is a vast void. Without the mind, curiosity and knowledge are nonexistent."
  49. Re: Your tinfoil hat... by RabidMoose · · Score: 1

    ...maybe it's time to take it off?

  50. Proof of life found by WindShadow · · Score: 1

    Actually this proves that not only was there life, but intelligent life at that. They evolved, developed space flight, and left before the lower life forms on Earth arrived. The perchlorates are simply contamination for rocket fuel.

    Sounds as likely as some of the other theories I've read lately.