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Cassini 'Tastes' Organic Material at Enceladus

Posted by Zonk on Thursday March 27, @07:31PM
from the why-does-saturn's-icy-moon-taste-like-ecto-cooler-hi-c dept.
Riding with Robots writes "As previously reported, the robotic spacecraft Cassini recently flew through the mysterious geyser plumes at Saturn's icy moon Enceladus. Today, NASA released the preliminary results of the flyby, including some intriguing findings, such as organic materials 20 times denser than expected and relatively high temperatures along the fissures where the geysers emanate. 'These spectacular new data will really help us understand what powers the geysers. The surprisingly high temperatures make it more likely that there's liquid water not far below the surface,' said one mission scientist."

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[+] Enceladus "Sea" Mystery Deepens 166 comments
Smivs writes "The BBC reports that an ocean may not be the source of the jets emanating from Saturn's moon Enceladus. Controversial research questions the moon's promise as a target in the search for life beyond Earth. A chemical analysis of Enceladus, led by University of Colorado planetary scientist Nick Schneider, failed to detect sodium, an element scientists say should be present in any body of water that has been in contact with rock for billions of years. Spectral analysis with the Keck Telescope found no sodium in the plumes or in the vapor in orbit around the moon. At stake is whether Saturn's moon could support alien life and is thus a worthy target for a NASA exploratory mission to detect it. Such a mission to Enceladus is one of four currently under review for further development."
[+] Saturn's A-ring Soaks Up Debris Ejected from Nearby Moon 64 comments
ScienceDaily is running a story about the recently discovered interaction between Saturn's A-ring and one of Saturn's small moons, Enceladus. Thanks to data from Cassini, scientists have discovered that ejected matter from Enceladus' ice geysers is absorbed into the A-ring, where it is then trapped. We discussed the geysers themselves a few years ago, and researchers have been working since then to determine where the material was going. Quoting: "This is the latest surprising phenomenon associated with the ice geysers of Enceladus to be discovered or confirmed by Cassini scientists. Earlier, the geysers were found to be responsible for the content of the E-ring. Next, the whole magnetic environment of Saturn was found to be weighed down by the material spewing from Enceladus, which becomes plasma -- a gas of electrically charged particles. Now, Cassini scientists confirm that the plasma, which creates a donut-shaped cloud around Saturn, is being snatched by Saturn's A-ring, which acts like a giant sponge where the plasma is absorbed."
[+] Spacecraft to Fly Through Geyser Plumes On Saturn Moon 80 comments
Riding with Robots writes "Today the robotic Saturn probe Cassini will make its closest buzz ever over the surface of the enigmatic ice moon Enceladus, whose surprising giant water geysers hint at a hidden ocean of liquid water. The spacecraft will fly right through the tops of the geyser plumes in order to sample the material that originated beneath the surface. NASA is offering a video, interactive guide and image gallery in advance of the event."
[+] Cassini Geyser-Tasting a Bust 95 comments
Maggie McKee writes "The Cassini spacecraft flew into the icy geysers erupting from Saturn's moon Enceladus on Wednesday in an attempt to figure out what they were made of, but a glitch prevented the probe from actually 'tasting' the plumes. An 'unexplained software hiccup' put the Cosmic Dust Analyzer (CDA) out of commission. Ironically, new software designed to improve the ability of the CDA to count particle hits may be to blame. Mission managers may try to re-attempt the plume fly-through later this year."
[+] Cassini Finds Evidence For Ocean Inside Titan 79 comments
Riding with Robots writes "NASA reports that by using data from the Cassini probe's radar, scientists established the locations of 50 unique landmarks on the surface of Saturn's planet-size moon Titan. They then searched for these same lakes, canyons and mountains in the data after subsequent Titan flybys. They found that the features had shifted from their expected positions by up to 30 kilometers. NASA says a systematic displacement of surface features would be difficult to explain unless the moon's icy crust was decoupled from its core by an internal ocean, making it easier for the crust to move. If confirmed, this discovery would add to the growing list of moons in the solar system that are icy on the outside and warm and liquid inside, providing potential habitats. We've previously discussed Titan's hydrocarbon lakes and potential cryovolcano."
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Cassini 'Tastes' Organic Material at Enceladus 25 Comments More | Login | Reply /

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  • Does someone want to tell me what definition of "organic" they are using, which can be found in comets and moon geysers?
    • Re:Organic? (Score:5, Informative)

      by Chris Burke (6130) on Thursday March 27, @07:42PM (#22888162) Homepage
      Does someone want to tell me what definition of "organic" they are using, which can be found in comets and moon geysers?

      "Compounds containing carbon".

      That's all it means, really. Methane is a common one.
      • Re: (Score:3, Informative)

        by Anonymous Coward
        or to be more precise by citing wikipedia:

        Organic chemistry is a specific discipline within chemistry which involves the scientific study of the structure, properties, composition, reactions, and preparation (by synthesis or by other means) of chemical com
        • Re:Organic? (Score:4, Informative)

          by wizardforce (1005805) on Thursday March 27, @07:51PM (#22888260) Journal
          it should be noted however that otherwise "organic" compounds containing boron or silicon are often not characterized as being organic, usually they are referred to as being part of organometallic chemistry. th is even though boron and silicon are not strictly metallic, they are in fact semiconductors.
        • Re: (Score:3, Funny)

          Nope. You need both carbon and hydrogen, and CO2 has no H. I believe the simplest organic molecule is methane, CH4. It's also hydrocarbon, which means it contains only carbon and hydrogen. Alternatively formaldehyde, CH2O, could be considered simplest, dep
    • Re:Organic? (Score:4, Interesting)

      by wizardforce (1005805) on Thursday March 27, @07:46PM (#22888204) Journal
      traditionally organic meant that it was produced by life and not synthetic- then we figured out how to synthesize a lot of these chemicals and now it pretty much means contains carbon and usually hydrogen. carbon dioxide for example contains carbon but isn't considered organic and neither is pure carbon. water is a vital component of life as we know it and is almost always associated with organic compounds at least in vivo although it too is not considered organic because it doesn't contain carbon, it does however contain hydrogen and oxygen which are very common in organic compounds.
    • Re: (Score:2)

      Does someone want to tell me what definition of "organic" they are using, which can be found in comets and moon geysers?

      aliens!
    • Re: (Score:3, Funny)

      They were produced without synthetic fertilizers, pesticides, or unnatural additives of any kind.
  • suspicions confirmed (Score:5, Funny)

    by spacefiddle (620205) on Thursday March 27, @07:44PM (#22888182)
    > "Enceladus' brew is like carbonated water with an essence of natural gas," said Waite.

    Gawd, i knew it. The primordial hell-brew of the universe is Mountain Dew.
  • I am with Jack Handy... (Score:3, Funny)

    by netsavior (627338) on Thursday March 27, @07:51PM (#22888270) Homepage
    Whether they find life there or not, I think Jupiter should be considered an enemy planet
    • Re: (Score:2)

      and Saturn is just his bastard cousin... obviously they are in league with each other.
  • nasa should wisen up (Score:3, Funny)

    by wwmedia (950346) on Thursday March 27, @07:56PM (#22888326)
    if they spin it the right way, that they literally found moons made of petrochemicals in the outer solar system their budget would triple overnight ;)
    • Re:nasa should wisen up (Score:4, Funny)

      by lusiphur69 (455824) on Friday March 28, @02:18AM (#22890798) Homepage
      In other news, the oil industry announced a 100-billion dollar research grant into carbon nanotubes.

      Oli G. Archy, head of Chevron says "We believe a giant straw-like tube would significantly advance our knowledge of the known universe and help our neighbours in the solar system acheive democracy."
  • What interests me... (Score:5, Interesting)

    by jd (1658) <imipak&yahoo,com> on Thursday March 27, @08:00PM (#22888366) Homepage Journal
    ...is that Enceladus has a chemical makeup far and away closer to a comet than to a Saturnian body, but cannot be a captured comet. The speculation I've read suggests it may have been bombarded by so many comets that the overall chemistry may have changed, but we've a name for objects like that -- dust. Being smashed into by objects that must have been many times the mass of the original moon, for there to have been a significant effect, would have reduced the proto-Enceladus into puree-of-moon.

    I'm wondering if that, in fact, happened - that there was one almighty pulverization and the modern Enceladus is the result of the lighter material condensing around a surviving fragment of sufficient size to act as a nucleus. In that case, though, there should be another moon formed from the heavier material condensing around another fragment, showing an abnormally high density, in much the same way that the Earth and its moon unevenly divide the material of the original planet.

    So far, I've not seen anything that suggests that is the case, but since so little is actually known, I guess it's well within the realms of possible at this point.

  • Doesn't the word organic mean something living (or at one point was living)? Or are we talking about organic compounds?
    • Re: (Score:2, Informative)

      According to wiktionary, both definitions are correct. As for this article, they are referring to carbon based material. Or so we hope.
  • NASA's Cassini spacecraft tasted and sampled a surprising organic brew erupting in geyser-like fashion from Saturn's moon Enceladus during a close flyby on March 12. Scientists are amazed that this tiny moon is so active, "hot" and brimming with water vap

  • Lets play god (Score:4, Interesting)

    by WarJolt (990309) on Thursday March 27, @08:49PM (#22888790)
    Organic material, eh... We should seed the planet with microbes, come back in a million years and see what evolves there. Would that prove evolution or the god theory?
    • Re: (Score:3, Informative)

      I thought the "tasting" was a bust...

      Only one instrument had problems. The others worked.