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The Lower Atmosphere of Pluto Revealed

Matt_dk writes "Using ESO's Very Large Telescope, astronomers have gained valuable new insights about the atmosphere of the dwarf planet Pluto. The scientists found unexpectedly large amounts of methane in the atmosphere, and also discovered that the atmosphere is hotter than the surface by about 40 degrees, although it still only reaches a frigid minus 180 degrees Celsius. These properties of Pluto's atmosphere may be due to the presence of pure methane patches or of a methane-rich layer covering the dwarf planet's surface."

109 comments

  1. i see the future by thhamm · · Score: 3, Funny

    cue the "methane" & "uranus" jokes.

    1. Re:i see the future by morgan_greywolf · · Score: 0, Troll

      No, Uranus does!

    2. Re:i see the future by Machtyn · · Score: 3, Funny

      So, now Pluto gets to be the butt of all the jokes.

    3. Re:i see the future by Amazing+Quantum+Man · · Score: 4, Funny

      That's "Gravitationally Challenged" planet, you insensitive clod!

      --
      Fascism starts when the efficiency of the government becomes more important than the rights of the people.
    4. Re:i see the future by cwAllenPoole · · Score: 1

      I think you're just anti-dwarves.

      --
      http://www.allen-poole.com/
    5. Re:i see the future by LifesABeach · · Score: 1

      For all the trash talk that Pluto has received as, "Not a Real Planet"; it now finds itself to be associated other, blue collar type objects in space. Just how much more can this one little planet take!

      >youTubeFoolCrying<Leave Pluto Alone!</youTubeFoolCrying>

    6. Re:i see the future by Kwiik · · Score: 0, Offtopic

      How to get +5 funny instead of +4 funny:

      Post the joke instead of the joke's base elements

      --
      Vehicle Stars used car search is my current project
    7. Re:i see the future by conureman · · Score: 1

      I think GP meant to be insightful.

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    8. Re:i see the future by vandelais · · Score: 1

      Pure methane?--What are they feeding him? Walt Disney?

      --
      Game: Player 'Donald J Trump' now has AI skill level 'experimental'.
    9. Re:i see the future by Anonymous Coward · · Score: 0

      So then we should rename Pluto to say... Poot-o!

    10. Re:i see the future by Hurricane78 · · Score: 1

      Your mom is "Gravitationally Challenged"!

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
  2. Quite a long and interesting article... by amentajo · · Score: 2, Funny

    ... concerning a celestial body whose public status has recently changed from "Boring Planet" to "Boring Dwarf Planet" after its 15 minutes of fame in the news. I guess now it's a "Less Boring Dwarf Planet".

    1. Re:Quite a long and interesting article... by conureman · · Score: 1

      Shades of Chesley Bonestell, nice image. What is that crescent shaped object visible in the artist's conception? A Death Star? I can't think of anything else that might be out there. Hmmph.

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    2. Re:Quite a long and interesting article... by Canazza · · Score: 5, Informative

      um, Charon?

      --
      It pays to be obvious, especially if you have a reputation for being subtle.
    3. Re:Quite a long and interesting article... by wooferhound · · Score: 1
      --
      We are Dead Stars looking back Up at the Sky
    4. Re:Quite a long and interesting article... by nicodoggie · · Score: 1

      Lots of moons for a little guy! So size doesn't matter.

      /me smiles at this joyous realization

      Not that I'm small or anything... no.

    5. Re:Quite a long and interesting article... by conureman · · Score: 2, Interesting

      By no strange coincidence 1978 was the year I put away the 4" Reflector and embarked on a futile quest to control my social ineptitude near desirable women. Guess I missed a few things.

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    6. Re:Quite a long and interesting article... by 4D6963 · · Score: 1

      Well.. hopefully you got to uncover more moons than you could have with a telescope!

      --
      You just got troll'd!
    7. Re:Quite a long and interesting article... by conureman · · Score: 1

      Imagine growing up on the Charon-facing side of Pluto. One might deduce from one's own empirical observation, within a lifespan of one or so "Pluto years", the nature of our orbital motions, &c. Kind of a beautiful picture in my mind.
      Why yes, I have been smoking something... But seriously, Pluto and Charon could communicate by semaphore.

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    8. Re:Quite a long and interesting article... by conureman · · Score: 1

      I never saw any of the other planet's moons, my clock drive was broken, that might've helped. Oh, right.. I'd say I did a lot better than I deserved, all things considered.

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    9. Re:Quite a long and interesting article... by Anonymous Coward · · Score: 0

      *sigh*

      conureman... he's talking about BUTTS. As in, by focusing on being able to talk to women without vomiting, you were (hopefully) able to convince some of them to let you see them naked.

    10. Re:Quite a long and interesting article... by Hurricane78 · · Score: 1

      I'd say I did a lot better than I deserved, all things considered.

      There is your problem, according to what psychology knows nowadays.
      To get what you want, you first must believe it yourself. And in a way that makes even others believe it.

      If we're still talking about girls: There is no "deserving" in that area. That's only what you learned to be worth.
      Get an own system of values. Re-evaluate what you think about stuff. And then stop putting yourself below women.
      You are not lower or higher in value than they are. Even the most sexy girl is just a girl. And she can have huge deficits where you shine.

      Don't get girls even though you are what you are. Get them because you are what you are.

      I am a programmer. I love developing complex systems and talking about advanced concepts of physics and philosophy.
      I would never act as if this "geekyness" were a disadvantage. No. If I talk to the most beautiful girl, she has live up to being able to think on that level.
      Not in a mean way! I'm only clear about what the worth of it in my reality is.

      You can be born beautiful. But you have to work hard to become a great mind. (I'm still working on it. And I always will. ^^).

      --
      Any sufficiently advanced intelligence is indistinguishable from stupidity.
    11. Re:Quite a long and interesting article... by conureman · · Score: 1

      Did I mention ineptitude? I don't have esteem issues, other than a realistic idea of the various impressions I give to the majority of people to whom I speak. Heck, I even have several friends. I was not completely unfortunate, genetically, and used to attract some favorable attention, until I'd engage in conversation. Did I mention ineptitude? It was the stuff of comedy. In the main, I learned to edit my choices of conversational topics, which works for short-term relationships ;). Anyway, if you've read my posts, you can see I still haven't transcended the inane non-sequitur, &c. (I'm usually ROTFL on my REALLY insane-sounding stuff, although the kernel of reality [and/or humor] is often pretty obscure.)

      --
      The cost of that cleanup, of course, will be borne by taxpayers, not industry.
    12. Re:Quite a long and interesting article... by 4D6963 · · Score: 1

      Yep, it's kind of sad someone should think they're not as worthy as other men, mainly when the other men in question are like this!

      Actually, the funny thing is, a lot of girls who are in a serious relationship with some of these douchebags have themselves self-esteem issues, and believe they already have more than they deserve, which is why they'll stay with the scrotewanks they've got.

      Ah.. the discrepancies between what people perceive of themselves and what people actually perceive of them..

      --
      You just got troll'd!
  3. Wow, Pluto and "hot" in the same sentence. by Ihlosi · · Score: 2, Insightful

    What's next, cold spots on Venus (i.e. cold enough that lead is almost solid again)?

    1. Re:Wow, Pluto and "hot" in the same sentence. by Anonymous Coward · · Score: 0

      Sure. Cold is a relative term when you get down to it, isn't it? Even among humans, 20C weather can be cold to someone from Alabama but to me it's quite hot.

    2. Re:Wow, Pluto and "hot" in the same sentence. by wooferhound · · Score: 1

      There are cold spots on my wife . . .

      --
      We are Dead Stars looking back Up at the Sky
    3. Re:Wow, Pluto and "hot" in the same sentence. by Anonymous Coward · · Score: 0

      On heranus?

  4. Mostly by tverbeek · · Score: 3, Funny

    I've actually just transmitted an update to the article about Pluto in the Hitchhiker's Guide to the Galaxy. It now reads "Mostly Boring."

    --
    http://alternatives.rzero.com/
  5. Fuel by Anonymous Coward · · Score: 1, Interesting

    So Pluto could be a useful fuel source when mankind starts to explore outside the solar system. I wonder in how many years/decades time this will be.

    Tim

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

      The methane clinging to Pluto is pretty darn thin. I wouldn't expect it to last very long.

  6. methane by Anonymous Coward · · Score: 0

    so when the fossil fuels run out, we can burn pluto till its gone (this may also be do-able for other kuiper belt objects)

    1. Re:methane by wooferhound · · Score: 1

      The Methane Tax would probably kill the idea.

      --
      We are Dead Stars looking back Up at the Sky
    2. Re:methane by Tubal-Cain · · Score: 1

      Methinks they need more oxygen if we are going to burn it.

    3. Re:methane by linzeal · · Score: 1

      What are you going to use to power the methane tankers to get out there and back?

  7. Sheep by unlametheweak · · Score: 1

    These properties of Pluto's atmosphere may be due to the presence of pure methane patches or of a methane-rich layer covering the dwarf planet's surface."

    These properties may also be do to the presence of sheep on Pluto.

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

      I say we rename the planet to Dutch Oven.

    2. Re:Sheep by Hordeking · · Score: 1

      These properties may also be do to the presence of sheep on Pluto.

      Wouldn't it be more likely due to fleas on Pluto?

      --
      Disclaimer: The opinions and actions of the US Gov't are in no way representative of those held by this author or its ci
  8. What have we learned? by ichbineinneuben · · Score: 1, Redundant

    So, scientists discover that pluto smells like butt.

    1. Re:What have we learned? by Anonymous Coward · · Score: 3, Informative

      methane doesn't smell of anything. its the other stuff such as SO2 that causes farts to smell.

      if methane smelt bad we wouldn't have to add thiols(really stinky molecules) to mains gas to detect leaks.

  9. Re:Correction by Anonymous Coward · · Score: 0, Insightful

    6gaireohvjn3rehnv5rje6oahgre

    That's my head slamming into the keyboard, by the way.

    It *is* a dwarf planet, that's the whole point.

    Also, saying "fixed that for you" does not make you sound clever. It makes you sound like an asshole.

  10. Re:Charon by conureman · · Score: 1

    Live and learn.

    --
    The cost of that cleanup, of course, will be borne by taxpayers, not industry.
  11. It Ain't a Planet! by Cornwallis · · Score: 1

    Really.

  12. Rubbing it in by orkybash · · Score: 3, Funny

    "new insights about the atmosphere of the dwarf planet Pluto"

    Aww, come on, you guys are just rubbing it in now!

    1. Re: Rubbing it in by Anonymous Coward · · Score: 0

      Yeah fuck that, things should never change. Russia is still the USSR, the USA is still the colonies and Pluto is still a planet.

    2. Re: Rubbing it in by Anonymous Coward · · Score: 0

      Do you always lack a sense of humor or is it just where planets are concerned?

    3. Re: Rubbing it in by Anonymous Coward · · Score: 0

      It looks like you're the one without a sense of humour.

  13. So... by FlyByPC · · Score: 3, Insightful

    Given that it has both a moon and an atmosphere, are they going to admit that it's a planet (albeit a weird one) -- or do we let the definition become so strict that soon nothing qualifies as a planet anymore?

    --
    Paleotechnologist and connoisseur of pretty shiny things.
    1. Re:So... by Canazza · · Score: 3, Interesting

      "A dwarf planet, as defined by the International Astronomical Union (IAU), is a celestial body orbiting the Sun that is massive enough to be rounded by its own gravity but has not cleared its neighbouring region of planetesimals and is not a satellite."

      By this definition, Neptune isn't a planet, it's a dwarf planet, because it hasn't cleared Pluto out of it's neighbouring region...

      --
      It pays to be obvious, especially if you have a reputation for being subtle.
    2. Re:So... by Anonymous Coward · · Score: 0

      Sure Neptune is, look up resonance orbits some time.

    3. Re:So... by Anonymous Coward · · Score: 0

      or do we let the definition become so strict that soon nothing qualifies as a planet anymore?

      The ancient Greeks first defined planets and the definition has only become more loose since then. The problem was that if you consider Pluto to be a planet, there are literally thousand of other objects that meet such a broad definition. The Pluto is by no means unique. It was just easier to find than all the similar ones. Hell, there are comets with atmospheres and smaller bodies orbiting. Do you really want to memorize over 100 planets?

      People want Pluto to be a planet for emotional reasons, get over it, please.

    4. Re:So... by Canazza · · Score: 1

      From the GP:

      do we let the definition become so strict that soon nothing qualifies as a planet anymore?

      are people's sarcasm detectors malfunctioning today?

      --
      It pays to be obvious, especially if you have a reputation for being subtle.
    5. Re:So... by wooferhound · · Score: 4, Insightful

      Earth will Always be a planet and all other space objects will be compared against it.
      If we get too picky then Earth will be the Only planet as nothing else will fit the description of Earth.

      --
      We are Dead Stars looking back Up at the Sky
    6. Re:So... by GreenCow · · Score: 2, Informative

      This is why we have different categories of planets.

      Earth is the only Class M planet in the solar system.

      Of course, with terraforming, Mars might join us in that someday.

      Looking through: http://en.wikipedia.org/wiki/Class_M_planet

      It seems like pluto should be a class K, or possibly a class D.

    7. Re:So... by Anonymous Coward · · Score: 0

      All we have to do then is let Neptune and Pluto collide. Neptune will get a nice bruise like Jupiter got when Shoemaker-Levy crashed into its atmosphere. Then we can stop worrying about whether Pluto is a planet or not. It's not like Pluto was ever really planet sized anyways. It looks like an asteroid.

    8. Re:So... by Anonymous Coward · · Score: 0

      Just because it has an atmosphere and moon shouldn't necessitate calling it a 'planet'. Jupiter, Saturn, and Neptune have moons with atmospheres of comparable magnitude or thicker than Pluto's. And there are asteroids less than 100km across that have their own moons.

    9. Re:So... by Johnny+Mnemonic · · Score: 1

      I would think that a planet could be defined as having a regular orbit, with only slight variance. "Slight" of course being subjective, but by no definition would Pluto's eccentricity be considered slight.

      Also, it might be required to be in the orbital plane, but that would require at least two other planetary bodies.

      --

      --
      $tar -xvf .sig.tar
    10. Re:So... by M8e · · Score: 3, Funny

      Do you really want to memorize over 100 elements? NO! There should only be five! Aether, Air, Earth, Fire and Water!

      Do you really want to memorize over 100 countries? NO! There should only be one per continent!

    11. Re:So... by Anonymous Coward · · Score: 0

      By this definition, Neptune isn't a planet, it's a dwarf planet, because it hasn't cleared Pluto out of it's neighbouring region...

      And interestingly enough, it never will.

      http://www.astronomycafe.net/qadir/q364.html[www.astronomycafe.net]

    12. Re:So... by Anonymous Coward · · Score: 0

      Neptune's and Pluto's orbit don't intersect, they are not even close at all (relatively speaking).

    13. Re:So... by Anonymous Coward · · Score: 0

      well earth has not cleared out hail bopp the comet either. so would earth be a dwarf planet. the defenition of planet is

      A "planet"1 is a celestial body that: (a) is in orbit around the Sun, (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.

      Neptues's tans objects
      http://upload.wikimedia.org/wikipedia/commons/8/86/TheKuiperBelt_75AU_All.svg

      Earths's trans objects
      http://szyzyg.arm.ac.uk/~spm/neostorm.png

  14. Pluto Lives by Anonymous Coward · · Score: 0

    Bring back Pluto the Planet.

  15. Eris by corsec67 · · Score: 3, Informative

    If Pluto gets called a planet, then Eris would also be called a planet, since it is bigger than Pluto. Otherwise "Planet" would be a very arbitrary definition.

    --
    If I have nothing to hide, don't search me
    1. Re:Eris by mysticgoat · · Score: 4, Funny

      Eris should be called a planet.

      If you don't invite her to the party, there will be hell to pay.

    2. Re:Eris by Nazlfrag · · Score: 2, Insightful

      It's not the size, its the shape and clearing of orbit. If we drop the clearing orbit and Pluto and Eris are in the club, so should be Ceres, Makemake and Haumea at least. I would like them all to go back to planet status, but it's unlikely. It's all the fault of Eris anyway, they wouldn't have reclassified poor Pluto if she was a little slimmer.

      Pluto will always remain a planet to me. I'll start calling it a dwarf planet around the time I call 2^10 bytes a kibibyte or when hell freezes over, whichever comes first.

    3. Re:Eris by Estanislao+Mart�nez · · Score: 1

      If Pluto gets called a planet, then Eris would also be called a planet, since it is bigger than Pluto. Otherwise "Planet" would be a very arbitrary definition.

      But the deeper point is that, given our knowledge of astronomy, pretty much any definition of "planet" is arbitrary.

      There's tons of stuff moving around in space, at all sorts of sizes, shapes, physical compositions, distributions of matter, trajectories, etc. They're trying to draw a line such that space-stuff on one side of the line count as "planets," and space-stuff on the other doesn't. No matter how carefully and precisely they draw the line, it is still hopelessly arbitrary: why draw the line here and not there?

      The laws of physics really do not care whether any particular aggregate of stuff floating around in space is a "planet" or not. We can exhaust the actual facts that we can discover about space-stuff without settling the question of which of them are "planets.'

    4. Re:Eris by dkleinsc · · Score: 1

      Come on, be fair: Eris is so gracious that she gives out lovely golden apples even when she's not invited to the party.

      --
      I am officially gone from /. Long live http://www.soylentnews.com/
    5. Re:Eris by gomiam · · Score: 1

      No matter how carefully and precisely they draw the line, it is still hopelessly arbitrary: why draw the line here and not there?

      Because drawing the line "here" (as in Pluto not being a planet because it hasn't cleared its orbit of debris, among other things) makes it much easier to decide than drawing the line "there" (as in "we found this big spheroid and we decided it was a planet, and now we know there are many things around the same size or bigger, but we don't want to turn back").

    6. Re:Eris by mysticgoat · · Score: 1

      I tip my hat to you; a more excellent reply. (The most excellent reply will of course go to that which is the fairest of them all.)

      I've only now just noticed the kallistei references in the Disney rendition of Snow White. That is most interesting. Were the the Disney artists followers of the Sacred Chao? That would explain a few things.

  16. Yuggoth by Pond823 · · Score: 1

    It's been 'terraformed' in line with Yuggoth.

  17. Y'know what I don't get.... by Anonymous Coward · · Score: 0

    <rant>

    That they decided to demote it from being a planet simply because we've learned enough about it to know it shouldn't have been called that in the first place.

    "Atom" was supposed to be the smallest possible thing, so small as to be utterly indivisible, yet when things smaller than what was thought to be the atom were discovered, they didn't go around saying that the elements weren't atoms anymore, even though "atomic" still means "indivisible".

    I can appreciate that by the criteria that actually exist for a planet, that Pluto would fail to qualify, and I firmly believe that such information should readily accompany any educational article that might exist about it, but I'm one of those people who thinks that Pluto should have remained a planet (or a "double planet", more precisely). This would not have necessitated permitting other objects which were known to not to be planets from being admitted into the category because the argument would remain that Pluto would only still be considered a planet because all technical observations that were available at the time of its discovery appeared to indicate that it qualified as such, much as how the elements were originally defined as atoms, long before it was discovered there was something smaller. Specifically, then, pluto should be an "honorary planet", not because of the debate about whether or not it was ever a planet to begin with, but because there was *NO* a debate about the matter for many years because until more precise measurements were available, nobody really knew that it didn't actually qualify. We can admit that we were wrong and Pluto shouldn't have been called one in the first place, but it just seems wrong, somehow, to demote an object that has held onto that status for so long simply because we didn't know enough about the object to make the distinction when it was discovered.

    </rant>

    1. Re:Y'know what I don't get.... by Anonymous Coward · · Score: 0

      Who cares what the IAU thinks anyway? Pluto was called a planet long before the IAU ever even existed so who gives them the right to play these word games and why should people accept their opinion as gospel?

      Pluto will always be a planet to me regardless of what any IAU astronomical punk insists on spouting.

      Anyway so now Pluto is a "dwarf planet"

      A "moon chair" is in the superset of chairs.
      A "dwarf planet" is in the superset of planets.

      It seems to me using plain english its no less correct to call a "moon chair" a chair than it is to call a "dwarf planet" a planet. Your loosing some specificity but people have an amazing nack for communicating simple concepts effectivly using small words without the constant need to resort to IQ embelleshing academic snobbery.

      I will continue to call pluto a planet for as long as I live regardless of what IAU or any lemming punk follower of the IAU has to say.

  18. Re:Correction by that+IT+girl · · Score: 1

    Hey, was just trying to be funny... Cracked me up anyway. Chill, man. /. memes are great if you ask me.

    --
    10 FILL MUG WITH COFFEE
    20 DRINK COFFEE
    30 GOTO 10
  19. Cowabunga by flyingfsck · · Score: 0, Troll

    Well, obviously there must be super cool space cows living on Pluto - if we have to believe that all hydrocarbons are the result of organic life - and not the other way around.

    It sounds like we really need to start working on reversing the anthropogenic global warming of Pluto.

    --
    Excuse me, but please get off my Pennisetum Clandestinum, eh!
  20. Re:Correction by that+IT+girl · · Score: 0, Offtopic

    Also I'd like to point out that jumping down someone's throat for making a joke, especially as an AC, makes you look like an asshole.

    --
    10 FILL MUG WITH COFFEE
    20 DRINK COFFEE
    30 GOTO 10
  21. liquid methane by pha7boy · · Score: 1

    wouldn't methane at -180C be in liquid form? (boiling point is -161C)

    --
    -- All this knowledge is giving me a raging brainer.
    1. Re:liquid methane by jschen · · Score: 4, Informative

      The boiling point depends on the atmospheric pressure. Boiling points are typically reported based on sea level on Earth. With a much lower atmospheric pressure on Pluto, boiling points will drop.

    2. Re:liquid methane by Anonymous Coward · · Score: 1, Insightful

      wouldn't methane at -180C be in liquid form? (boiling point is -161C)

      What makes you think the pressure on Pluto is the same as on Earth? I would assume the pressure even at the surface is close to zero.

    3. Re:liquid methane by XSpud · · Score: 1

      As other replies have stated it depends on the pressure and at about 0.15 atm or less, it will be a gas at this temperature.

      However, the triple-point of methane is at about 0.1 atm which means that methane cannot exist in liquid form anyway given the very low atmospheric pressure on Pluto (1/100,000 atm or less). If you reduce the temperature by just a few degrees the gaseous methane will deposit as a solid, without passing through the liquid phase and in fact, solid methane is found on the surface of pluto.

  22. All of those pollutants! by tjstork · · Score: 0, Troll

    Gee, the solar system is filled methane, hydrogen, and carbon dioxide. If we are to say that were are going to a natural universe, then, if anything is a pollutant, it is our planet's low CO2 and low methane atmosphere.

    --
    This is my sig.
    1. Re:All of those pollutants! by Urkki · · Score: 1

      Not to mention all the sulfuric acid, which is keeping Venus's atmosphere so fresh and healthy. For instance, asthma is completely nonexistent on Venus!

      We were doing a nice job increasing sulfur content of Earths atmosphere, until those tree-hugger wackos got sulfur emissions severely restricted... And now they're trying to do it to CO2 as well! They must be stopped!

  23. Cold is absolute - Hot is relative by drerwk · · Score: 2, Informative

    Cold is an absolute term in that you can have absolute zero. Hot is a relative term in that there is no absolute hot, just degrees. Well maybe not - seems like the Planck temperature at 10^32 Kelvin might be an absolute hot. http://www.pbs.org/wgbh/nova/zero/hot.html Makes sense given a Planck length and Planck time.

    1. Re:Cold is absolute - Hot is relative by mdwh2 · · Score: 1

      Just because there's an absolute zero doesn't stop cold from being relative. Absolute zero only gives you one fixed point - where does the sense of scale come from? Is 1K cold? Or 100K, or 1000K? Clearly, our perception of "cold" has nothing to do with absolute zero, but is based on the temperatures we are used to on Earth, which is relative.

      Another example is that "light" and "heavy" are relative terms, even though there's an absolute zero for mass. The fact that you can't have negative mass doesn't stop us from talking about "heavy particles" and "planets of low mass", even though the objects referred to in the latter context are vastly heavier than in the former.

  24. Re:Correction by Notquitecajun · · Score: 1

    [quote]6gaireohvwaaahwaaahwaaahwhateverjn3rehnv5rje6oahgre[/quote]

    There, fixed that for you.

    Seriously...with THAT big a target...

  25. Methane? by CopaceticOpus · · Score: 1

    It must be dwarf cows! Herds of tiny bovines roam Pluto's surface. It takes seven of them to make the galaxy's most expensive burger.

  26. Re:planetary sciences by BobReturns · · Score: 1

    Yes, we are rock nerds. And we like it that way.
    If you want to go on a website to mock nerds for something you're not interested in... well, you've certainly come to the wrong place.

  27. Re:Correction by goltzc · · Score: 1

    Also I'd like to point out that jumping down someone's throat for making a joke, especially as an AC, makes you an asshole.

    There fixed that for you.

    --
    Our bugs are smarter than your test scripts.
  28. Dwarf Planet?!? by Locke2005 · · Score: 1

    We prefer to be called a "gravitational mass challenged planet", you insensitive clod!

    --
    I've abandoned my search for truth; now I'm just looking for some useful delusions.
    1. Re:Dwarf Planet?!? by Anonymous Coward · · Score: 0

      That was painfully unfunny.

  29. Absolute Gibberish by Ramze · · Score: 1
    What a lot of scientific sounding gibberish. You are confusing "heat" and lack thereof with the terms "hot" and "cold."

    Hot and cold are both relative terms. Absolute zero is a theoretical temperature at which there is a complete lack of heat. (I say theoretical because it may not be possible to even reach absolute zero in our universe.) While that would likely be described as cold compared to any other temperature, it is not the definition of "cold." If two objects were at absolute zero, then one would not be cold compared to the other. If there is a maximum theoretical temperature, that would also not be the definition of "hot."

    Cold, warm, and hot are adjectives used to describe the heat of something in relative terms. Absolute terms would be exact temperatures.

    To turn your argument on it's head, cold is not only not absolute, it doesn't even exist. It is a relative term describing a lack of heat. Heat exists and cold is merely a description of the lack of it relative to some other amount of heat. Heat in terms of temperature is absolute.

    1. Re:Absolute Gibberish by raddan · · Score: 1

      Actually, technically speaking, heat is the transfer of energy from one body to another through a heat transfer mechanism (conduction, convection, raditation, etc). So the word "heat" itself is also a relative term, since it does not make any sense outside of the transfer of it. Energy is the absolute term you are talking about. Temperature is also a relative term. The common temperature scales, Kelvin, Celsius, Fahrenheit, are calibrated with respect to an ideal reference system; they are meaningless outside of this reference system.

  30. Intriguing by ZankerH · · Score: 1

    I wonder how how much of whatever the New Horizons probe finds during it's Pluto fly-by in 2015 will already be known by then, when you take the ever improving optics and other remote viewing technology into account.

  31. Methane and the presence of life by Johnny+Mnemonic · · Score: 1

    The presence of methane on Mars is considered a strong indicator of some form of current life there.

    http://www.universetoday.com/2004/03/30/whats-creating-the-methane-life-or-volcanoes/

    While there are natural processes that can produce it, it decays quickly and so it is more likely that an organism is providing consistent replenishment.

    However, I don't think anyone expects that Pluto would be able to support life--too too cold. Is there some explanation for natural forming, and natural persisting, on Pluto that makes sense that does not imply the presence of life?

    --

    --
    $tar -xvf .sig.tar
    1. Re:Methane and the presence of life by SuiteSisterMary · · Score: 1

      However, I don't think anyone expects that Pluto would be able to support life--too too cold.

      Why make assumptions? 'Extremeophiles' are found damn near everywhere. Bactiera surviving on equipment left on the Moon for years, entire ecosystems around deep-water volcanos that everybody knows could never exist due to a) extreme temperature, and b) lack of sunlight...

      --
      Vintage computer games and RPG books available. Email me if you're interested.
  32. That just begs the question by Estanislao+Mart�nez · · Score: 1

    Because drawing the line "here" (as in Pluto not being a planet because it hasn't cleared its orbit of debris, among other things) makes it much easier to decide than drawing the line "there" (as in "we found this big spheroid and we decided it was a planet, and now we know there are many things around the same size or bigger, but we don't want to turn back").

    This begs the question of why draw any line at all. Nature doesn't draw a line between planets and non-planets; why should scientists be so gung-ho on drawing one? All of the differences are differences of degree; why try to shoehorn everything into a difference of kind? The facts about the objects of either pseudo-kind will in the end be explained by appeal to the same laws of physics. The distinction has no predictive value at all.

    In addition, how does the criterion you single out it make it any easier to decide where to draw the line? The decision was and still is controversial, which, prima facie, contradicts your claim that that criterion made it easier to decide. Isn't it probably the case that the only people who think the criterion makes it "much easier" to decide are probably those who agree with the criteria anyway? That would, once more, beg the question, because of course, it is very easy to agree with something you already agree with, isn't it?

    1. Re:That just begs the question by gomiam · · Score: 1

      This begs the question of why draw any line at all. Nature doesn't draw a line between planets and non-planets; why should scientists be so gung-ho on drawing one?

      Simplicity: either there's a clear distinction between the Kuiper Belt objects and the planets or there isn't. If there isn't, then we will have to contend with so many planets it's not even funny. It's much simpler to drop just one planet and get some clear criteria on the side.

      You should remember that not everything in science is prediction models: there are lots of categories that make talking about everything much simpler. According to your "laws of physics" argument, why should we even bother with "planets" and "stars"? They are all subjected to the same laws of physics, it just happens the size of "stars" is enough to start hydrogen fusion, right?

      The decision was and still is controversial, which, prima facie, contradicts your claim that that criterion made it easier to decide.

      I'm reading the Wikipedia article on the definition of planet and it states several controversies about the different points of the IAU. But it seems the problem is not having good enough numbers: how much the neighbourhood is cleared (the difference between Pluto, which hasn't cleared its orbit yet, and the rest of the planets which almost have completely cleared it is good enough, even if we don't have a exact percentile to use), how much hydrostatic equilibrium is required (which isn't actually important as Pluto seems to have achieved that quite well, thank you), and orbits around a star (which probably doesn't apply to Pluto as it seems to be dragged around by Neptune). The funniest thing about the "clearing the neighbourhood" controversy is that the main opponent of that criterium basically advocated it just a few years ago. Quite a change of heart.

  33. Titan all over again? by Iowan41 · · Score: 1

    And we won't be able to see the surface with the flyby in 2015?

  34. Re:planetary sciences by niktemadur · · Score: 1

    While the AC may just be trolling for a reaction, there is something in the general culture, even within science, to what he says.

    Some years back, I spent the night as a layman at the UNAM observatory in Baja, with some astrophysicists taking measurements of Cepheid Variables in Andromeda. At some point, I asked one of the team members a question about recent developments in planetary astronomy (probably something to do with Cassini), check out his reply: "No idea, because as astrophysicists, we find small stuff like that boring". My jaw almost hit the floor with that offhanded dismissal coming from a professional astronomer.

    Later in the night, I got him, and got him good, by asking him what mechanism allows for the behavior that Cepheid Variables display. He stuttered for a moment, visibly perplexed, and replied "I don't know, let me get back to you on that one". These guys have never asked themselves why the objects they've monitored for years behave the way they do.

    That's been an inevitable problem that has plagued the scientific community for a long time - compartmentalization, which leads to a misguided sense of elitism, the equivalent of wearing horse blinders and being proud of it. Whatever happened to the intellectual restlessness that got these people into science in the first place? Where, when and why did they freeze up? Focusing on an academic specialty and sticking to it is the only way to get results in many cases, but not everywhere and/nor all the time.

    Score big points for NASA, they've officially recognized and addressed via the situation via the Origins Program, an interdisciplinary network of data in which every area of knowledge is equally important, compelling and can only enrich all other areas.

    The most famous case in point, for decades, paleontologists were searching for the source of mass extinctions by looking at the ground, not even contemplating the possibility that astronomical phenomena might have caused these events, as it was beyond their realm of study.

    Here's another, anybody attempting to study the dynamics and evolution of spiral galaxies should take a long and hard look at the available data on Saturn's rings.

    So basically, NASA's Origins Program is attempting to build bridges between ivory towers, and that can only be a good thing.

    --
    Lil' Thindime, lilting a lacrimose lament, krashes the kwaint konfines of Kokonino Kounty
  35. Re:planetary sciences by lorelorn · · Score: 1
    To be fair, the ground is exactly where those paleontologists found the mass extinction evidence. That ground-based evidence pointed to an extraterrestrial origin that had not previously been considered, but no one worked out the reason by looking up with a telescope.

    I won't pretend the hypothesis was accepted immediately but once the Yucatan crater was identified (by a satellite looking down, but that's more engineering than astronomy surely?) that was pretty much the clincher.

    However it is good science where so-called 'separate' disciplines start working together, though it's pretty common. The Victorian-era divisions across science become more irrelevant daily, and only persist due to government and university funding models that still use them to determine grants allocation.

  36. Interesting result by lorelorn · · Score: 1
    Before this surprise methane discovery, Pluto was thought to be more like an icy version of our moon - something like the asteroid Ceres or Neptune's moon Triton. Now, it may be that Pluto has more in common with Saturn's moon Titan, which has a thick atmosphere of methane with a distinct orange hue. If Pluto were closer to the sun it might have a thicker atmosphere, it may even have a 'summer atompshere' as that methane goes from liquid to gas as it gets closer to the sun.

    Pluto Express, due to arrive in 2015, is a flyby, and will only give us a 'snapshot' of Pluto. It would be nice to have something to observe Pluto's changing seasons over the next 200-odd years.

  37. Dude by Anonymous Coward · · Score: 0

    Dude, dwarf planet is not the preferred nomenclature. Radially challenged. Please!

  38. It's cold out there by dark+grep · · Score: 1

    I suspect the heat in the atmosphere is caused by the Putonians burning the abundant methane to keep warm.

  39. With Apologies to Jonathan Coulton by AP31R0N · · Score: 1

    I'm Your Moon
    - Jonathan Coulton

    They invented a reason
    That's why it stings
    They don't think you matter
    Because you don't have pretty rings
    I keep telling you I don't care
    I keep saying there's one thing they can't change

    I'm your moon
    You're my moon
    We go round and round
    From out here, it's the rest of the world that looks so small
    Promise me
    You will always remember who you are

    Let them shuffle the numbers
    Watch them come and go
    We're the ones who are out here
    Out past the edge of what they know
    We can only be who we are
    It doesn't matter if they don't understand

    I'm your moon
    You're my moon
    We go round and round
    From out here, it's the rest of the world that looks so small
    Promise me
    You will always remember who you are

    Who you were
    Long before
    They said you weren't
    Anymore

    Sad excuse for a sunrise
    It's so cold out here
    Ice and silence and dark skies
    As we go round another year
    Let them think what they like, we're fine
    I will always be right here next to you

    I'm your moon
    You're my moon
    We go round and round
    From out here, it's the rest of the world that looks so small
    Promise me
    You will always remember who you are

    --
    Utilizing the synergization of benchmark e-solutions to pre-workaround action items!