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Titan's Alien Thunder

An anonymous reader writes "What is not being reported much about the fascinating Huygens descent to the surface of Saturn's largest moon, Titan, is its remarkable microphone. In the silence of space, the probe offers a platform for listening to alien thunder while watching the lightning strike on this alien world--the only moon with an atmosphere thicker than our terrestrial one. The probe detaches from Cassini on Christmas for its atmospheric entry on 14 January 2005. The landing target on Titan borders a bright-dark region thought to be an oil-rich shoreline. Huygens can float for a few hours while still broadcasting if it lands in a lake of oil."

21 of 222 comments (clear)

  1. Alien thunder by BWJones · · Score: 5, Informative

    Titan may offer the first chance for a terrifying symphony of alien thunder.

    Alien thunder?.........hrmmmmm......new, name......for a band? Yeah, that's it.

    On a more serious note, here is the link to the Cassini-Huygens main page complete with a tital flyby schedule, a flyby mission description, photo essay including some amazing images of the rings of Saturn, Titan and more.

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    1. Re:Alien thunder by another_henry · · Score: 5, Informative

      Heavy oils on Earth are generally created by chemical processes acting on dead microorganisms over geological time. The "oil" on Titan is hardly oil at all, it's light short-chain hydrocarbons such as methane (CH4), ethane (C2CH6) and propane (C3CH8) which would be gases on Earth. These are much easier to form "abiotically", i.e. without life. In face the gas giant outer planets Uranus and Neptune have large amounts of methane in their atmospheres. (IANAAstronomer)

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    2. Re:Alien thunder by another_henry · · Score: 5, Informative

      Those molecular formulae should be CH4, C2H6 and C3H8 respectively. Improper backspacing, sorry.

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      "Studies have shown that people who eat peanuts live longer than those who do not eat."
    3. Re:Alien thunder by praedictus · · Score: 5, Informative

      The person who came up with the abiotic theory is largely regarded as a crackpot. Methane can be generated abiotically and there may be reserves related to this, but crude is full of degenerate organically derived molecules - cracked chlorophyll and other such things. Host reservoirs are categorized by the degree of such decomposition - see Vitrinite Reflectance Index. The Athabaska tar sands are Cretaceous, they merely overly the Shield.

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    4. Re:Alien thunder by Tassach · · Score: 2, Informative
      Heavy oils on Earth are generally created by chemical processes acting on dead microorganisms over geological time
      Change "generally created by" to "generally believed to be created by". There is a (highly contentious) theory that petrochemicals are (or at least can be) formed by abiotic processes. While initially dismissed as a crackpot theory, there does seem to be enough initial supporting evidence to at least warrant further research. The discovery of heavy petrochemicals outside of a biosphere would radically change our understanding of geological processes.
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  2. Thankfully, they had extra propellant... by bc90021 · · Score: 4, Informative

    ...since they had to compensate for a telecommunications problem. Read more here.

  3. Re:For all the NASA jokes... by strictfoo · · Score: 5, Informative

    you HAVE to be amazed by what they have accomplished on an ever-shrinking budget.

    Actually, NASA's bugett has basically been constant, receiving small increases to adjust for inflation.

    1999 - ~$13.6B
    2000 - ~$14B
    2001 - ~$14.5B
    2002 - ~$14.5B
    2003 - ~$15B

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  4. Re:The only moon... by Anonymous Coward · · Score: 1, Informative

    You mean Imperial Earth, probably.

  5. Re:Oil? by BenjyD · · Score: 4, Informative

    It's all just hydrocarbons, it's just that on earth a lot of the solid carbon is tied up in living creatures so our hydrocarbons come from decomposition of their dead bodies. The clouds of ethanol in outer space don't make me assume that there are deep-space breweries, for example.

    On Titan, it's cold enough that the lighter hydrocarbons like methane are liquid, so the sea of 'oil' is probably just short chain alkanes like methane.

  6. Re:Fuel-breathing jet engines by Anonymous Coward · · Score: 1, Informative

    Well considering there is hardly any oxygen this shouldn't be a problem.

  7. Re:Oil by Anonymous Coward · · Score: 1, Informative

    Hey, this is slashdot, you definately need a web sight!
    OK, anyways, here you go.

  8. Re:Oil by deimtee · · Score: 2, Informative

    Try "Power from the Earth" by Thomas Gold for an interesting read. He basically says oil is primordial material contaminated by biological products. He makes some interesting points.

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  9. The MOON by dpilot · · Score: 1, Informative

    But unfortunately for you, the MOON around URANUS is TRITON, not Titan.

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  10. Sorry, but IMHO you're wrong... by cavac · · Score: 4, Informative

    "Huygens can float for a few hours while still broadcasting if it lands in a lake of oil."

    It may float that long, but the batteries are running out soon after landing.

    And because Huygens is scheduled to be dead shortly after landing/crashing, the communication session with Cassini is limited to that time span - Cassini doesn't listen much longer and Huygens has simply no programming for a longer mission time. So, even if Huygens manages to survive longer than expected, it wouldn't provide much more data nor would Cassini pick it up.

    It didn't find the link again, but that's what i remembered reading somewhere on www.esa.int...

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  11. Re:I dont want to steal their thunder.. by chiph · · Score: 4, Informative

    For example the camera on the $4 billion Cassini mission is only 1 megapixel - if we had a larger number of smaller, cheaper missions, would we be there now with a much better imaging system.

    The Mars rovers only have 1-megapixel cameras too, but those pictures look pretty darned good. It's all about the quality of the design and the parts that go into it, mostly, the lens and the size of the imager chip. Read more at msnbc.

    Chip H.

  12. Titan Flyby Tomorrow! by tetrahedrassface · · Score: 2, Informative

    There will be a Titan flyby on Tuesday Oct, 26. Huygens will be released, and the first good images of Titan will start coming in Tuesday evening. Nasa will have special coverage. You can join #cassini on irc.freenode.net and join in the discussion. Tommorrow promises to be great fun. We invite everyone to join in on irc and party like its 1999.

  13. Re:I dont want to steal their thunder.. by jeff4747 · · Score: 2, Informative

    They already tried something similar to your approach. Remember the "Faster, Better, Cheaper" missions that NASA tried a few years ago? They became famous for failing spectacularly.

    Interplanetary travel is pretty difficult, so it ends up being rather expensive to build a spacecraft that can cope with the trillion little things that could go wrong.

  14. Television programme 9-10 years ago by hoofie · · Score: 2, Informative

    I remember watching a television programme about 10 years ago in the UK about an Open University academic who was designing a penetrator for I think the Huygens probe. I remember that it was a probe to determine if they hit liquid or semi-liquid ground on the surface. The person in question was interviewed as hoping that it would get on the probe etc, be launched ok etc.

    Sure enough, 10 odd-years later, that probe is now on the bottom [see ref ACC-E] of Huygens and may well be the first part of the spacecraft to touch the surface of Titan later this year.

    I can't imagine the dedication involved in working on something that looks simple [but I am sure is not] and then waiting seven or more years to see if it ever works.

    The lead on the team is a Professor John Zarnecki - I wonder if he remembers being interviewed [if it was him] by the BBC 10 years ago ?.

  15. Voodoo science? by rumblin'rabbit · · Score: 2, Informative
    This is a highly controversial theory that is not supported by facts. It verges on junk science.

    There is absolutely no doubt that most, if not all, of our known petroleum reserves come from organic sources. Petroleum geology is a mature science - these people know what they are talking about.

    As an example, I don't know of any petroleum deposits not found in or very near sediments and sedimentary geology. There was one famous case of people drilling deep into granite looking for signs of petroleum. They claimed they found traces, but it was in such small quantities that it could easily have been contamination from drilling.

    Until a petroleum deposit is found that could not have originated from organic sources, this theory should be placed in the "highly speculative" category.

  16. first close flyby Tuesday 10/26 by peter303 · · Score: 3, Informative

    Cassini passes within 800 miles of Titan about 5:40 PM EST tommorrow. Some imaging earlier in the mission saw some stuff below the haze. Could be spectacular.

  17. Re:The only moon... by TechSptSucks · · Score: 2, Informative

    They are not comaring the atmosphere of our moon with Titan's. They are comparing Earth's atmosphere with Titan's atmosphere.