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Molecular Basis for Life Found on Extrasolar Planet

DarkProphet writes "NASA scientists have discovered the first evidence of organic molecules on an extrasolar planet. Using the Hubble Space Telescope, they detected trace amounts of methane on a swirling gas giant about 63 light-years from our own planet. Being a gas giant, there's almost no chance this discovery represents extrasolar life. A unique find, just the same. 'HD 189733b, a so-called "hot Jupiter," located 63 light years away, has proven a boon for scientists studying exoplanets. Its large size and proximity to its star mean that it dims the star's light more than any other known exoplanet. Combine that with its home star's high brightness, and scientists find that the system creates the best viewing conditions of any known extrasolar system. At different wavelengths, every atom and molecule has its own telltale footprint, so scientists can convert what are known as absorption spectra into the chemical composition of the object they're looking at.'"

20 of 89 comments (clear)

  1. I'm not surprised... by PC+and+Sony+Fanboy · · Score: 2, Insightful

    Someone was bound to find something eventually. If the universe is as big as we seem to think it is, it was bound to happen eventually. Who knows, maybe some of those religious guys might be right. Too bad it would simply be accidental ;)

  2. Well... by ch-chuck · · Score: 3, Funny

    just beam a high power radio signal that way and if your lucky in 124 years you might get a 'hello there' back.

    Actually it would be pretty cool to establish contact with an alien civilization even if there is a 250 year lag. Just ask a question and your great-great-great-grandchildren might get an answer, "No we haven't developed hyperlightspeed propulsion yet either".

    --
    try { do() || do_not(); } catch (JediException err) { yoda(err); }
    1. Re:Well... by Joe+The+Dragon · · Score: 2, Funny

      or we can just use the stargate and go there.

    2. Re:Well... by AHumbleOpinion · · Score: 5, Funny

      Well, we know you don't work in software. A software developer would have said "Hello world"

      Well, we know you don't use email. An email user would not expect the first communication to be "Hello there" or "Hello world", an email user would expect:

      Lagos, Nigeria, Earth.

      Attention: The President/CEO

      Dear Sir,

      CONFIDENTIAL BUSINESS PROPOSAL

      Having consulted with my colleagues and based on the information gathered from the nigerian chambers of commerce and industry, I have the privilege to request for your assistance to transfer the sum of ...

  3. just to highlight by ionix5891 · · Score: 5, Informative

    they found methane which is quite common in our solar system, its not that they found methane being present thats is the breakthrough here, its the fact that they have fine enough instruments to measure a planet ~60 light years away, this absolutely amazing! fairplay!!

    the planet in question is bigger than Jupiter and closer to its sun than mercury, so its way too hot for any life "as we know it" to survive

  4. Been over this before by explosivejared · · Score: 4, Funny

    We just went over this exact occurrence just a month ago. Go ahead with the flatulence jokes all the same though, it would be a break of tradition if you didn't.

    --
    I got a catholic block.
  5. Headline is misleading by hcg50a · · Score: 4, Informative
    The big deal, according to the article, is that they were able to detect it for the first time, not that it was discovered. It is expected to be present.

    Here's a quote from one of the workers:

    If we were able to detect [methane] on a more hospitable planet in the future, it would really be something exciting.
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    HCG 50a = 2MASX J11170638+5455016
    11h17m06.4s +54d55m02s
    1. Re:Headline is misleading by esocid · · Score: 2, Interesting
      The big deal with it is that they now have a proven method for using spectrum analysis to determine the presence of organic molecules. From the actual research paper:

      As these bands can overlap in wavelength, and the corresponding signatures from them are weak, decisive identification requires precision infrared spectroscopy. Here we report a near-infrared transmission spectrum of the planet HD 189733b that shows the presence of methane.

      Here is the abstract.
      --
      Absolute power corrupts absolutely. indymedia
  6. Same old hype by l2718 · · Score: 2, Interesting

    The ability to resolve the spectral lines is a great advance. The hype is getting old. We know that small "organic" molecules are not hard to come by; we expect to find them everywhere we look, yet the press goes ape whenever we find them. Worse, since we have no idea what "life" is, it seems a bit odd to go crazy over molecules that are somewhat related to our kind of "life".

  7. Now, oxygen, on the other hand... by Loke+the+Dog · · Score: 4, Interesting

    Well, it's cool that we can find proof of any kind of molecules on extrasolar planets, but I'm still waiting for the discovery of O2 on an extra solar planet, that will be the discovery of the century. Methane is not so cool.

    1. Re:Now, oxygen, on the other hand... by mog007 · · Score: 4, Interesting

      The first lifeforms on our own planet didn't use O2 for respiration. It took a very, very, very long time for the Earth's original atmosphere to be converted to the 70% nitrogen, 20% oxygen atmosphere we're comfortable breathing now. Even today we have a very popular organism that doesn't require O2 to function, and the wonderful result of lacking O2 is ethanol.

      Liquid water is the smoking gun for life forms, and maybe some serious carbon.

    2. Re:Now, oxygen, on the other hand... by wizardforce · · Score: 3, Informative

      photosynthesis produces oxygen as a waste product. when oxygen levels in the air became sufficient, it resulted in what is called the oxygen catastrophe because oxygen is quite poisonous to many anaerobic organisms. finding oxygen in the presence of reducing chemicals like methane signals that there is an active process for making oxygen and reducing chemicals and one of the best ways to do this is with active life.

      --
      Sigs are too short to say anything truly profound so read the above post instead.
  8. Re:Methane - Big Deal by Leftist+Troll · · Score: 5, Funny

    I was under the impression that methane was fairly common in the Universe. For example, Uranus is full of methane.

  9. Re:Hydrogues by timster · · Score: 2, Interesting

    Seriously though, I'd like to know exactly what makes life on gas giants so unlikely. You've got all sorts of chemicals swirling around, different temperatures at different depths, and frequent capture of diverse debris. We've hardly explored the interiors of the gas giants right here in our own system, so what's the basis for ruling out life on gas giants 60 ly away?

    I'm sure there's good science involved, I'm just curious to know what it is.

    --
    I have seen the future, and it is inconvenient.
  10. Re:Methane - Big Deal by Loke+the+Dog · · Score: 4, Insightful

    It's funny, you were modded troll even though what you said is both true and relevant. We really need to rename that planet.

  11. Re:Hydrogues by wizardforce · · Score: 4, Informative

    so what's the basis for ruling out life on gas giants 60 ly away?
    the fact that it is 1300 degrees, so hot that water starts reacting with methane to produce carbon monoxide.
    --
    Sigs are too short to say anything truly profound so read the above post instead.
  12. Re:No chance?!? by v1 · · Score: 2, Informative

    Being a gas giant, there's almost no chance this discovery represents extrasolar life

    considering how regularly we find life in places our usual view of where life can survive don't work, like around geothermal vents at the bottom of the ocean, or inside solid rock 2 miles below the surface, I find this comment incredibly narrow-minded. That gas giant is about on keel with the ocean here on earth, and last I checked, life here began in the seas.

    --
    I work for the Department of Redundancy Department.
  13. Re:What's the big deal? - Ah! But you're assuming by Markvs · · Score: 2, Funny

    That we got the only Monolith.

    --
    46. The Hobo smiles, his eyes glaze over, and he burps. "Beware the man who has lived longer than the Wasteland."
  14. Re:Hydrogues by MMC+Monster · · Score: 2, Funny

    so what's the basis for ruling out life on gas giants 60 ly away?
    the fact that it is 1300 degrees, so hot that water starts reacting with methane to produce carbon monoxide. Sounds like Los Angeles.
    --
    Help! I'm a slashdot refugee.
  15. Re:Hydrogues by freefrag · · Score: 2, Informative

    More relevant here is the fact that the upper limit of stability of any carbon-based macromolecule or polymer is about 400 Celsius, even in "inert" atmospheres due to C-H bonds breaking. Though this does not rule out other chemistries, the news here is about carbon-based life.