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Extreme Shrimp May Hold Clues To Alien Life On Europa

HughPickens.com writes: Scientists at NASA's Jet Propulsion Laboratory are studying a mysterious ecosystem at one of the world's deepest undersea hydrothermal vents to get clues about what life could be like on other planetary bodies, such as Jupiter's icy moon Europa, which has a subsurface ocean. At the vents, tiny shrimp are piled on top of each other, layer upon layer, crawling on rock chimneys that spew hot water. "You go along the ocean bottom and there's nothing, effectively," says Max Coleman. "And then suddenly we get these hydrothermal vents and a massive ecosystem. It's just literally teeming with life." Bacteria, inside the shrimps' mouths and in specially evolved gill covers, produce organic matter that feed the crustaceans. The particular bacteria in the vents are able to survive in extreme environments because of chemosynthesis, a process that works in the absence of sunlight and involves organisms getting energy from chemical reactions. In this case, the bacteria use hydrogen sulfide, a chemical abundant at the vents, to make organic matter. The temperatures at the vents can climb up to a scorching 842 degrees Fahrenheit (450 degrees Celsius), but waters just an inch away are cool enough to support the shrimp. The shrimp are blind, but have thermal receptors in the backs of their heads.

According to the exobiologists, these mysterious shrimps and its symbiotic bacterium may hold clues "about what life could be like on other planetary bodies." It's life that may be similar—at the basic level—to what could be lurking in the oceans of Europa, deep under the icy crust of the Jupiter moon. According to Emma Versteegh "whether an animal like this could exist on Europa heavily depends on the actual amount of energy that's released there, through hydrothermal vents." Nobody is seriously planning a landing mission on Europa yet. But the European Space Agency aims to launch its JUpiter ICy moons Explorer mission (JUICE) to make the first thickness measurements of Europa's icy crust starting in 2030 and NASA also has begun planning a Europa Clipper mission that would study the icy moon while doing flybys in a Jupiter orbit.

75 comments

  1. Most expensive sushi ever by Anonymous Coward · · Score: 0

    Most expensive sushi ever. If that doesn't get us off our butts, I don't know what else will.

    1. Re: Most expensive sushi ever by K.+S.+Kyosuke · · Score: 2

      Considering the Japanese penchant for rare sea delicacies, this could certainly provide a boost to their space program. Unless they get overtaken by the Chinese in case we find alien sea cucumbers on Europa, of course.

      --
      Ezekiel 23:20
    2. Re:Most expensive sushi ever by rubycodez · · Score: 5, Funny

      all these shrimp are yours, except Europas, eat no crustaceans there

    3. Re:Most expensive sushi ever by Anonymous Coward · · Score: 0

      I always thought it was weird that people eat sea bugs.

    4. Re:Most expensive sushi ever by Anonymous Coward · · Score: 0

      Eat them together, Eat them with Cheese...

    5. Re: Most expensive sushi ever by Optali · · Score: 1

      Ah, OK, this explains a lot!
      Now I finally know what all these Chinese are doing in Amsterdam!

      --
      -- 29A the number of the Beast
  2. In Reverse by Mr+D+from+63 · · Score: 1, Insightful

    I find it much more probable that life begins in milder, friendlier conditions and then adapts over time to harsher environments. Of course, everything is relative.

    1. Re:In Reverse by Anonymous Coward · · Score: 0

      I find it much more probable that life begins in milder, friendlier conditions and then adapts over time to harsher environments. Of course, everything is relative.

      Yes, everything is relative, including the definition of "harsh". Our oxygen rich, UV transparent atmosphere is rather harsh on many organisms, but beachgoers seem to enjoy it.

    2. Re:In Reverse by inflamed · · Score: 1

      I find it much more probable that life begins in milder, friendlier conditions and then adapts over time to harsher environments. Of course, everything is relative.

      Ah, but mild and friendly is a relative term. I'm not sure our frame of reference is a valid example of mild and friendly...

    3. Re:In Reverse by SourceFrog · · Score: 1

      It does seem more "intuitive", however, scientific research continually reveals findings that run contrary to our intuition; we don't actually know enough about the mechanisms for the genesis of life to actually say one way or the other if this is true. What you have is a hypothesis - one that needs more research - this is actually an interesting area of active research. Perhaps "harsh" environments are exactly what's needed to create sufficient 'chemical turmoil' and the driving selection mechanisms.

      I actually suspect that the majority of life - and intelligent life - in the universe is probably ocean-based. If ever space aliens visit us, unlike the movies, I suspect their spaceships may be more likely to be like sealed aquariums than an air-breathing setup. I've never seen this idea reflected in science fiction though.

      I think it may also partly explain why we haven't seen evidence of other intelligent life (so-called Fermi paradox, though I place little stock in that "paradox") - it's probably more difficult for ocean-based alien civilizations to have space programs.

      --
      My other UID is three digits.
    4. Re:In Reverse by pr0nbot · · Score: 2

      Surely "mild" and "harsh" are subjective? From the point of view of a molecule, what constitutes "harsh"?

      Perhaps evolving life in high temperatures turns out to be easier than at room temperature, e.g. because there's more free energy around.

    5. Re:In Reverse by wonkey_monkey · · Score: 1

      In Reverse

      In reverse of what? I didn't see anything in any of the articles or the summary about life starting out in these harsh environments.

      That might have been the case on Earth, but there may not be any less harsh environments on Europa.

      --
      systemd is Roko's Basilisk.
    6. Re: In Reverse by K.+S.+Kyosuke · · Score: 1

      I'm not a biologist, but it seems to me that life is more keen to utilize energy through more complicated but well defined pathways rather than through unpredictable thermal excitations, much like your car prefers a piston engine and a gearbox to Orion-style detonations.

      --
      Ezekiel 23:20
    7. Re:In Reverse by Brett+Buck · · Score: 2

      In this case I would say it was pretty sure that's what happened, but only because it was already alone.

      I would expect life would flourish where the exploitable energy exists, and be more diverse where there is more of it.

    8. Re:In Reverse by Anonymous Coward · · Score: 0

      Thank you for your baseless speculation and pointless personal projection into this subject, Bennett. When can we expect your next novel about some inane topic to hit Slashdot's front page?

    9. Re: In Reverse by itzly · · Score: 1

      The earliest life forms probably didn't have complicated pathways.

    10. Re:In Reverse by Anonymous Coward · · Score: 0

      I find it much more probable that life begins in milder, friendlier conditions and then adapts over time to harsher environments. Of course, everything is relative.

      Really? Is a tidal pool that's subject to wave action, UV light, and wind - and going to dry up in 2 days anyway - less "harsh" than a deep-sea hydrothermal vent that's going to vent steadily for perhaps thousands of years, if not longer?

      Which one is going to be more conducive to building - and not breaking - large, complex organic molecules?

      Hell, eukaryotes probably evolved from Archaea

      It is possible that the last common ancestor of the bacteria and archaea was a thermophile, which raises the possibility that lower temperatures are "extreme environments" in archaeal terms, and organisms that live in cooler environments appeared only later.

    11. Re: In Reverse by Anonymous Coward · · Score: 0

      I'm not a biologist, but it seems to me that life is more keen to utilize energy through more complicated but well defined pathways rather than through unpredictable thermal excitations, much like your car prefers a piston engine and a gearbox to Orion-style detonations.

      Well, a hydrothermal vent is VERY predictable - and STEADY.

      How predicable - and steady - is the energy from the sun?

      Nevermind the problem that the earliest possibly photosynthetic organisms date back only 3.4 billion years, and photosynthesis only really got going on Earth about 2 billion years ago.

      Where'd life get energy from before photosynthesis then?

    12. Re:In Reverse by Anonymous Coward · · Score: 0

      " it's probably more difficult for ocean-based alien civilizations to have space programs."

      Are you implying that a space program makes *us* visible to other civilizations? Really? A tin can 0.1 planetary radius up?

      No one's visiting anyone. Your intuition is wrong. All your space promises and sci-fi visions, all wrong.

      Science and basic physics should reveal that to you. But that's against your religion.

    13. Re:In Reverse by SourceFrog · · Score: 1

      Huh wtf? I'm just saying it's much more of an engineering challenge to launch rockets into space if you're an underwater species than a land-dwelling species - that's a plain straightforward fact, there is nothing even controversial about such a statement. Did you reply to the wrong comment? Nothing you said makes any sense as a reply to what I wrote. Or am I feeding a troll? Yeah, more likely.

      --
      My other UID is three digits.
    14. Re:In Reverse by Anonymous Coward · · Score: 0

      Fuck off, stupid troll.

    15. Re:In Reverse by Anonymous Coward · · Score: 0

      The truth hurts, SourceFrog.

    16. Re:In Reverse by Anonymous Coward · · Score: 0

      Don't be dense, you wrote "I think it may also partly explain why we haven't seen evidence of other intelligent life " just before.

      Stop writing such long sentences if you lose your short-term memory before finishing them.

      There is no Fermi's Paradox. The Periodic Table of Elements is the same across the entire universe. This sets limits on what can actually be built.

      Do you dispute this?

      It's very simple: we can't get there, and they can't get here.

      Simple. End of story. All your cherished 1960s sci-fi fantasies are stillborn. They never made any sense, and they never will.

    17. Re:In Reverse by Polybius · · Score: 1

      There was an episode of The Outer Limits called "Trial by Fire" that dealt with water faring aliens visiting earth.

    18. Re:In Reverse by itzly · · Score: 1

      It's very simple: we can't get there, and they can't get here.

      And unless they happen to be very close, we can't even notice each other.

    19. Re:In Reverse by Anonymous Coward · · Score: 0

      (Posting AC because I'm moderating)

      James Cameron's film "The Abyss" for SF spaceship using aliens who live underwater. I'm sure there are print precedents going back to the 1930s, maybe 20s, but I'd have to (gasp!), do a little actual research.

    20. Re:In Reverse by Oligonicella · · Score: 1

      For organic molecules, I'd say anything sufficient to inhibit their interactions or congeal them would be harsh.

    21. Re:In Reverse by HughPickens.com · · Score: 1

      The Killing Star, one of my favorite sf books of the past twenty years, explores this idea among many others. The book also presents a very interesting hypothesis that resolves the Fermi Paradox.

    22. Re:In Reverse by ultranova · · Score: 1

      The book also presents a very interesting hypothesis that resolves the Fermi Paradox.

      A hypothesis that falls apart when you start wondering how beings who embrace such logic ever built a society to begin with, and then avoided wiping each other out with nuclear weapons. Also, I can't help but think what happens if any set of species forms an alliance or even casual contact - attacking any warns all the others. So while we can't rule out a psychotic species causing havoc, it would be a weird aberration at worst.

      Frankly, I find it much more likely that we simply happen to be amongst the first civilizations to develop. Universe is not that old, elements took time to manufacture, life took time to get from first whatever-they-were to us, and Earth has a lot of things going for it specifically.

      --

      Forget magic. Any technology distinguishable from divine power is insufficiently advanced.

    23. Re:In Reverse by Anonymous Coward · · Score: 0

      I find it even more likely that the Periodic Table of the Elements is the same across the entire universe. If it isn't, we are basing our observations on what we think light behaves like with the elements we have here, so all our astronomical data would be in error.

      So now that we know that it's all the same elements across the universe, there simply aren't any magical elements or energy sources to allow the Space Nutter fantasies.

      Speed of light, the four forces, a bunch of elements, and that's it. We have steel, they'll have steel. We have carbon fiber, they'll have it too.

      They'll be 0.1 planetary radii out out in Low Planet Orbit, so are we.

      They can't get here, and we can't get there.

      End of story.

    24. Re:In Reverse by Nidi62 · · Score: 1

      I actually suspect that the majority of life - and intelligent life - in the universe is probably ocean-based. If ever space aliens visit us, unlike the movies, I suspect their spaceships may be more likely to be like sealed aquariums than an air-breathing setup. I've never seen this idea reflected in science fiction though.

      In the later books of the Lost Fleet series, they come across an alien race that is aquatic, with ships that are much more maneuverable than human ships. They theorized that the ships were in fact filled with water which allowed them to make more radical movements.

      --
      The only thing necessary for evil to triumph is for it to be pitted against a slightly greater evil
    25. Re: In Reverse by TapeCutter · · Score: 2

      Deep sea vents were discovered when I was in my 20's before that we used to think abiogenesis had something to do with lightning hitting a mud puddle. The evidence that life formed around such vets on Earth is strong but inconclusive. Fatty acids from clay in the vent spontaneously form primitive cell membranes (in vents and mud puddles). Sulphur provides chemical energy, porous rock around the vent provides a sponge like scaffold for life to take root and extract passing nutrients. Most importantly the vents are predictable, the deep, still water stabilizes the temperature gradient. Convection currents cycle the fatty cells through the gradient allowing different chemical reactions within the membrane to synchronize themselves to the thermal cycle (much the same as plants match the cycle of night and day). If that really is how life got started then it's likely that primitive cells are still being spontaneously created near these vents today, the practical problem for scientists researching this idea is finding them before evolved life such as shrimp eat them.

      Europa has all these conditions and like Earth it's ocean is also oxygenated at the top. Oxygen is vital for multicellular life on Earth, collagen (the stuff that holds individual cells together as multicellular critters) cannot form in an oxygen poor environment. Oxygen in Europa's ocean is replenished differently than it is on Earth. On Europa's surface strong radiation from Jupiter knocks the H2 off the ice and out into space, the free oxygen is returned to the ocean via plate tectonics. Personally I would think it very odd if we didn't find single celled life in Europa's ocean, at the very least it would force Science to radically rethink the conditions that lead to abiogenesis on Earth. What I'm interested to find out is whether life on Europa uses the same self-replicating molecules used by life on Earth, but I doubt I will be around to hear the answer..

      --
      And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.
    26. Re: In Reverse by Anonymous Coward · · Score: 0

      "I actually suspect that the majority of life - and intelligent life - in the universe is probably ocean-based. If ever space aliens visit us, unlike the movies, I suspect their spaceships may be more likely to be like sealed aquariums than an air-breathing setup. I've never seen this idea reflected in science fiction though."

      Dead Space 3

    27. Re:In Reverse by Hognoxious · · Score: 1

      The basis of technology is fire. Without that you can't even start smelting metals.

      How would you, as a shaggy dolphin with a bone though your nose, make a fire underwater?

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    28. Re:In Reverse by Anonymous Coward · · Score: 0

      I find it much more probable that life begins in milder, friendlier conditions and then adapts over time to harsher environments. Of course, everything is relative.

      I find it much more probable that life was created by a deity who crafted everything via sand and silt then breathed into it his breath of life. Of course, everything is relative. So glad people are settling on what type of evolution they want now.

    29. Re:In Reverse by thunderclap · · Score: 1

      Your arrogance amuses me. See the wonderful thing about science is we don't know what we don't know. Your statement is the equivalent of a village of tan people that have been trapped on an uncharted island in the pacific. You assume that everyone is the same as you see and that your technology is 18th century because thats all you have ever known.

      We don't know if the speed of light is constant outside our gravity well because we haven't sent any sensors out of it yet. We believe that its constant. 600 yrs ago we believed in ether filling space, Geocentric model for our universe and that the earth was a flat disc.
      We haven't mined any asteroids. The most we have is a highly controlled quantity of lunar regolith (dirt) that was far less than the expected estimates. We don't know if they are any heavier elements in the next two island groups.
      Finally we don't know if they have steel or not. You understand that there are technologies we have completely lost yet the items produced still exist?
      A perfect example is Damascus steel
      It was a type of steel used in Middle Eastern swordmaking. These swords are characterized by distinctive patterns of banding and mottling reminiscent of flowing water. Such blades were reputed to be tough, resistant to shattering and capable of being honed to a sharp, resilient edge.

      Damascus steel was originally made from wootz steel, a steel developed in India before the Common Era. The original method of producing Damascus steel is not known. Because of differences in raw materials and manufacturing techniques, modern attempts to duplicate the metal have not been successful. Despite this, several individuals in modern times have claimed that they have rediscovered the methods in which the original Damascus steel was produced.
      They might have fusion drives using magnetic cores, housing units that know how to generate artificial gravity. construction methods that allowed it to be built in low planetary orbit, and other things we are fully capable of but neither have the economic will or current expertise to do.

      The fact is aliens do exist as sure as we do. You want to know why? Because of evolution. If it works here, then it works everywhere else.
      We haven't left for the stars because of people like you and because they isn't enough political will to do so, yet. There will be. Its kinda sad that it will mostly be the Chinese who will do it. However, someone will.
      Then you comment will be treated with the same derision that the '4 computers ever', 'the 640k', 'the sun orbits the earth' and the earth flat comments are.

    30. Re: In Reverse by thunderclap · · Score: 1

      I'm not a biologist, but it seems to me that life is more keen to utilize energy through more complicated but well defined pathways rather than through unpredictable thermal excitations, much like your car prefers a piston engine and a gearbox to Orion-style detonations.

      There is a level of coolness attributed to a car that does Orion-style detonations. Mind you, you wouldn't survive but still.

    31. Re: In Reverse by Anonymous Coward · · Score: 0

      Uh life has to actually begin before evolution can kick in and there is no evidence that life has sprouted up anywhere other than Earth. You're making some big leaps in logic son. The fact is that only 1 species out of the possible millions would have had to decide to colonize the Galaxy and it would take less than 500 million years even without FTL travel. They're not here so they don't exist. We're alone right now and that's according to scientific observation; not guesses.

    32. Re: In Reverse by Anonymous Coward · · Score: 0

      They're not here because they can't get here. We can't get there either. That's all there is to it.

      See, you're still assuming that somehow *we*'ll be able to build warp drives and negative energy exotic field drives or whatever puerile sci-fi garbage.

      Ain't gonna happen.

      Just like hydrogen condensed into the Sun, hydrogen condensed into all the stars you see at night.

      It would be lunacy to suggest that suddenly, matter stops THERE and only the Magical Earth has life on it! It's the same elements, the same forces, the same laws all across the universe.

      Why is the Earth special? It isn't.

    33. Re:In Reverse by towermac · · Score: 1

      I'm with you. I'll bet a dollar that there are no hydrothermal shrimp on Europa; our freak shrimp are descended from regular shrimp who got away from hungry fish, and if there is so much as bacteria on Europa, I'll be shocked.

      But we do have here, in these little blind shrimp, a candidate species with which to seed Europa's ocean. I assume they taste as good as regular shrimp.

      As long as we don't mind them arriving in stores freeze dried and already irradiated ...

    34. Re: In Reverse by Anonymous Coward · · Score: 0

      That's all relatively silly since we already have the prerequisite technology to visit other star systems. See Project Orion..

    35. Re:In Reverse by towermac · · Score: 1

      Thank you. Venturing into space starts with flying through the gaseous atmosphere. Which starts with standing at the bottom of that atmosphere, staring up at the stars, and wishing you could fly. You can't even see stars from underwater.

      I might be imagination challenged, but I just don't see a progressive species with opposable thumbs and language developing underwater.

    36. Re:In Reverse by Anonymous Coward · · Score: 0

      You are clearly unaware of metal fires.

    37. Re:In Reverse by Anonymous Coward · · Score: 0

      Yes, you have totally disproved his point about being unable to bootstrap high technology without smelting. Oh wait, no you didn't at all.

      In your mind, primitive aquatic smelting happens how exactly?

    38. Re: In Reverse by O('_')O_Bush · · Score: 1

      I think the point of his last sentence was making the point more elegantly than what you parroted back at him.

      But anyways, I will laugh when we do punch through the ice on Europa and the probe finds itself in a jelly-like biofilm that harvests energy from whatever tectonics or tidal energy is imparted by Jupiter. Or something else so (rightfully) alien that there are no good biological analogs on Earth.

      --
      while(1) attack(People.Sandy);
    39. Re:In Reverse by Blaskowicz · · Score: 1

      I thought that in that movie, the aliens were an ancient civilization (apparently much wiser than ours) whose home planet is Earth. They evolved in the depth of the oceans, became an intelligent species and then a technological one. Later on, humanity is busy doing its mankind stuff (war, pillage etc.) but they're unaware of the deep sea "aliens", separated from us by kilometers of water rather than light-years of empty space.

    40. Re:In Reverse by Anonymous Coward · · Score: 0

      An atmosphere of a highly reactive gas like O2 is hardly mild and friendly!

    41. Re:In Reverse by Hognoxious · · Score: 1

      That was fiction. Oh, and so was that \|/
       

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
    42. Re: In Reverse by RockDoctor · · Score: 1

      If that really is how life got started then it's likely that primitive cells are still being spontaneously created near these vents today

      Modern conditions are very considerably different to those in which life developed on earth.

      For a start, there is oxygen. Now, it may be true that oxygen is essential for large organisms to develop (we only have a sample of one ecosystem, in which oxygen is almost ubiquitously associated with large organisms ; but that's an "almost ubiquitously", not an "always" ; the case may be suggestive, but it is certainly not proven.), but we're not talking about large organisms, we're talking about the formation of the first very small organisms. For certain, life evolved on Earth for a very long time before there was any significant amount of free oxygen in the ecosystem. Life and significant concentrations of oxygen have coexisted at best for a half of the duration of life on Earth.

      For a second thing, the modern world is full of organisms that breakdown ad re-use organic molecules. While there is a lot of debate about what particular compounds were common in the pre-biotic/ peri-biogenetic environment, it is sure that the modern environment has been stripped of many of the more complex molecules. Some of that stripping is due to the molecules being broken up by reaction with oxygen (see above), but much of it is simply going to be eaten.

      The likelihood of life spontaneously developing around modern deep-sea vents (or shallow-sea vents, for that matter) is considered pretty low, even though their ancient analogues are certainly sites of interest for biogenetic models.

      Radical re-thinking about the possible environments for biogenesis happens almost every time there is a new student writing a paper on the subject. There is not a scientific consensus on the question (though there are certainly ideas that are more popular than others). If this clashes with what you've heard on Discovery Channel, then I'd advise you to swap their (pretty shoddy) "journalism" for actually reading the relevant science. Much of it is available open access.

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
    43. Re:In Reverse by Anonymous Coward · · Score: 0

      In ST: Voyager there's an episode where a group of high-IQ tricksters lure people into paying for 'Think-tank' style solutions - to problems the 'Think-tank' created in the first place.

      Anyway, one of the members of the Think-tank is a kinda 'space-whale' in an aquarium like you describe.

    44. Re: In Reverse by K.+S.+Kyosuke · · Score: 1

      Well, a hydrothermal vent is VERY predictable - and STEADY.

      Yes, but those life forms aren't working like thermocouplers, are they? They're still not working along the lines of "let's just inject a lot of heat into a living organism and see what random stuff happens". They're just carefully digesting some of the products of reactions occurring nearby.

      --
      Ezekiel 23:20
    45. Re:In Reverse by cusco · · Score: 1

      The Anti-Humans-In-Space Nutters seem to have descended in force on this topic. Two centuries ago they would have been busily shouting down anyone who predicted that someday humans would travel faster than 35 miles an hour.

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    46. Re:In Reverse by cusco · · Score: 1

      One of my favorite mouse-over comments on XKCD goes to the effect of, "There is no logical economic reason to go to the stars. The universe is full of civilizations and species that lived and died on a solitary planet, discovered and recorded by the species which did the illogical thing."

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    47. Re:In Reverse by cusco · · Score: 1

      I believe it was Arthur Clarke who I heard speculate that we may have already encountered other sentient life and just not recognized it. If something lived so slowly that it took decades or years to form a coherent thought we would never have the patience to talk to it (even if we could figure out how). If something lived so quickly that it was here and gone in a day it wouldn't have the patience to talk to us. For some long-lived species a trip between stars that lasted a thousand years, to us essentially an impossibility, might be the equivalent of an evening parking on Lover's Lane.

      --
      "Think about how stupid the average person is. Now, realise that half of them are dumber than that." - George Carlin
    48. Re:In Reverse by Optali · · Score: 1

      We still don't know how abiogenesis works and our current environment could perfectly be such a "harsher environment".

      --
      -- 29A the number of the Beast
    49. Re: In Reverse by K.+S.+Kyosuke · · Score: 1

      Deep sea vents were discovered when I was in my 20's before that we used to think abiogenesis had something to do with lightning hitting a mud puddle. The evidence that life formed around such vets on Earth is strong but inconclusive. Fatty acids from clay in the vent spontaneously form primitive cell membranes (in vents and mud puddles). Sulphur provides chemical energy, porous rock around the vent provides a sponge like scaffold for life to take root and extract passing nutrients. Most importantly the vents are predictable, the deep, still water stabilizes the temperature gradient. Convection currents cycle the fatty cells through the gradient allowing different chemical reactions within the membrane to synchronize themselves to the thermal cycle (much the same as plants match the cycle of night and day). If that really is how life got started then it's likely that primitive cells are still being spontaneously created near these vents today, the practical problem for scientists researching this idea is finding them before evolved life such as shrimp eat them..

      Yeah, all this makes sense, but all you're describing is really what I meant with those "more predictable pathways". It's not like the life forms living around those vents are just bathing in the heat and having it fuel various endothermic reactions, which is what I understood by the mention of "more free energy around [in high-temperature environment]". Surely this can help some things, but it can be as easily destructive as it can be constructive. Heating a soup of chemicals can eventually give you a lot of interesting other chemicals, but for organized, self-replicating systems, that's not the major issue.

      --
      Ezekiel 23:20
  3. hydrothermal vents... by Anonymous Coward · · Score: 0

    Is that what killed Slashdot Messaging?

    Please fix

    1. Re:hydrothermal vents... by BarbaraHudson · · Score: 1

      It's been broken, fixed for a few days, then broken for a week now. feedback@slashdot.org

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
  4. What are the average specimens like by Anonymous Coward · · Score: 0

    I'm looking forward to sitting down at a restaurant and ordering an Average Extreme Jumbo Shrimp.

  5. Let's Send Bennett Haselton by Anonymous Coward · · Score: 0

    If we stick him inside a small probe and send him to Europa, give him a small laptop with internet from Earth. He will have all the peace and solitude to postulate the universe's greatest mysteries. He'll be famous and contribute direct from probe to Slashdot servers, Dice you stand to make millions and millions. Long live the audience.

  6. Dear Slashdot: Messaging is broke by Anonymous Coward · · Score: 0

    There is no reason for me to sign in, so I shall post AC until it is fixed.

    Thank you

    1. Re:Dear Slashdot: Messaging is broke by BarbaraHudson · · Score: 1

      It's been broken, fixed for a few days, then broken for a week now. Send a report via email to feedback@slashdot.org

      --
      "Transparent" is a shit show that trades on every stereotype going. A man in drag is NOT a transsexual.
    2. Re:Dear Slashdot: Messaging is broke by Hognoxious · · Score: 1

      Am I imagining this?

      A long time ago, before beta was even a twinkle in some dreadlocked UXtard's eye, you could reply to a comment or follow an external link and when you came back you were at the very place you left from, rather than the top of the accursed page?

      And recently, for just a few days, you could again. And now you can't again?

      --
      Confucius say, "Find worm in apple - bad. Find half a worm - worse."
  7. Astronaut take out food by __aanbvm4272 · · Score: 1

    Extremely large Shrimp...I hope Europa has a drive up window...I hate getting out of my spaceship I also hate the idea of being the meal for an extremely LARGE Shrimp.

  8. Fission powered shrimp, unlike normal fusion power by Eunuchswear · · Score: 1

    Must resist temptation to make fission chips joke.

    --
    Watch this Heartland Institute video
  9. No Microscopes on Mars by Anonymous Coward · · Score: 1

    When the recent 'landers' reached Mars, suspicion turned to the lack of microscopes amongst the range of 'life detecting' systems carried by the devices. NASA at first panicked, and then realised they could describe the macro-cameras used to study geological specimens as 'microscopes', and that the betas would be dumb enough to buy this explanation.

    Humanity is run by the big organised churches- in the West the Judaic churches of Islam, Modern Christianity (nothing to do with the original Christianity of the original followers of Jesus) and Judaism. The elites at the tops of these churches have absolute dominance in leading industrialised nations, especially the USA.

    Now the churches are still highly troubled by the impact on the dumbed down sheeple they rule over as to the impact of 'proof' of 'extraterrestrial' life. They have yet to be convinced that such a revelation would NOT end the rule by organised 'religion'. Those at the TRUE top of NASA answer to the leaders of these churches.

    There are NO MICROSCOPES ON MARS because actual images of micro-organisms would end all debate about the presence of life. The best science/engineering student in ANY US high-school could design a microscope-based instrumentation system for any Mars lander at vastly lower cost than any of the sensor systems currently carried by these probes. Yet NASA pays millions of dollars to PR agencies to troll appropriate forums with 'proof' as to why microscopes would be 'useless' , and yet (in a totally perverse logic) are present on the landers anyway.

    Anyone with any decent science skills KNOWS the original Mars Landers of the last century proved the presence of life on Mars with their chemistry sets- but the consequence was a massive FUD campaign denying the results of the experiments.

    The microscopy of Hooke changed the world centuries back. NASA claims doing no more than Hooke was able to do with the most primitive equipment is beyond the possibility of modern space engineering- and has a legion of trolls to back up this nonsense (watch the responses to this post).

    You betas are told on forums like this one that rationality rules the world- nothing could be further from the truth. Internet science outlets aimed at BETAS are about control, not knowledge. You are told NEVER to look at the men behind the curtain at NASA, but instead to empathise with the low level engineers and scientists that work there- an old psychological trick. Engineers and scientists, by and large, have the very opposite of forceful personalities. They are rarely outspoken, and almost never dare go against their bosses. If the agenda of those that employ them is dubious, the science always loses out.

    We KNOW as an absolute fact, that vast numbers of Earth life types survive all aspects of the space 'vacuum' found in our Solar System, and thus can easily seed suitable extra-terrestrial eco-systems if given the chance to travel. We KNOW, as an absolute fact, that meteor collisions and volcanic eruptions send matter from one planetary body to another in our Solar System. Not one ALPHA scientist living who has considered the issue doubts we will find extra-terrestrial life in many places within our Solar System as a consequence- with the greater likelihood that the genetic basis of such life will be remarkably similar.

    A standard culture dish on Mars observed by a standard microscope would already have proven the presence of life there beyond the doubt of even the simplest-minded visitor to this site. This is the EXACT reason NASA has refused to carry out such an obvious test. Meanwhile every single politician in the US Congress will vote to give absolute support to every atrocity carried out by Israel- continuing the foul, depraved dominance of vile organised religion over the affairs of Mankind.

    It is deemed too hard to sell the idea of the 'chosen people' and the 'master race' and 'mass murder in the name of god' if sheeple wake up one day and find themselves looking at microscope photographs from Mars showing actual living organisms. The entire upper management of NASA supported the recent Holocaust in Gaza. Either organised religion is dominant, or science- but NEVER both.

    1. Re:No Microscopes on Mars by Brett+Buck · · Score: 1

      Now see, THIS, gentlemen, is how to sling bullshit. Please make a note of it.

  10. A planet full of shrimp? by nowsharing · · Score: 1

    Well, we know where the dophins are heading.

  11. Say what? by s.petry · · Score: 1

    This is something trying to build a hypothesis on a theory that has no evidence at all. Sure, I find it as interesting as most people in terms of discussing possibilities, but this is dreaming and not "science". Anyone discussing life off of our own Earth needs lots of research.. like namely finding life so we could possibly begin to formulate a hypothesis on it's origin.

    I actually suspect that the majority of life - and intelligent life - in the universe is probably ocean-based. If ever space aliens visit us, unlike the movies, I suspect their spaceships may be more likely to be like sealed aquariums than an air-breathing setup. I've never seen this idea reflected in science fiction though.

    Look, I am honestly not trying to be a Debbie Downer on you, but you are attempting to critique someone's imagination with your own imagination. Dreaming and imagining are good things, and we need them. Dream, write about your dreams, and make a billion dollars in book sales. Just don't confuse imagination with facts and attempt to "correct" other people's imaginations with your own..

    --

    -The wise argue that there are few absolutes, the fool argues that there are no probabilities.

  12. Create Shrimp Planet by Anonymous Coward · · Score: 0

    We must colonize Europa with a hybrid human shrimp species.

  13. Got DRUGS?? NASA SURE DOES by Anonymous Coward · · Score: 0

    WOW. These people can't do shit. The only thing NASA does is come up with more sci-fi and fairy tales than actual output. I want some of those drugs and that $$$ those people are getting to make up fiction.

  14. In other news... by SIGBUS · · Score: 1

    "Extreme Shrimp" is going to be my next band name.

    --
    Oh, no! You have walked into the slavering fangs of a lurking grue!
  15. Sounds like the extreme shrimp by Anonymous Coward · · Score: 0

    would go really good with the extreme fajitas at Chotcksky's.

  16. Extreme Shrimp by jslaff · · Score: 1

    I saw Extreme Shrimp back in the '80s. Opened for Blondie and Television at CBGB. Neo-punk band, ahead of their day. Great times, those.