Slashdot Mirror


Huge Supernova Baffles Scientists

Iddo Genuth writes "Scientists from the Weizmann Institute of Science in Israel and San Diego State University have observed an explosion of a star 50 times larger than the sun. In what they call a 'first observation of its kind' the scientists were able to notice that most of the star's mass collapsed in on itself, resulting in a creation of a large black hole. While exploding stars, or 'supernovae,' aren't unprecedented, this star, which lay about 200 million light years away from earth and was million times brighter than the Sun, has exploded as a supernova at a much earlier date than the one predicted by astronomers."

358 comments

  1. It happens? by mc1138 · · Score: 5, Insightful

    Clearly all this proves is that we really don't know that much about what's going on in the universe.

    1. Re:It happens? by AaxelB · · Score: 5, Insightful

      Clearly all this proves is that we really don't know that much about what's going on in the universe.

      Did you ever think we did? We're pretty damn clueless.

      I think we would all do well to remember what Socrates (approximately, probably) said: "The only thing I know is that I know nothing at all."

    2. Re:It happens? by pilgrim23 · · Score: 4, Interesting

      http://www.newscientist.com/article/mg20127001.300-space-storm-alert-90-seconds-from-catastrophe.html?full=true some excellent points there. We are about to loose civilization to a new form of "global Warm/toasting"

      --
      - Minutus cantorum, minutus balorum, minutus carborata descendum pantorum.
    3. Re:It happens? by flaming+error · · Score: 2, Funny
    4. Re:It happens? by mabhatter654 · · Score: 4, Funny

      another MythBusters experiment gone wrong!

    5. Re:It happens? by Mt._Honkey · · Score: 5, Insightful

      Clearly all this proves is that we really don't know that much about what's going on in the universe.

      I'm getting tired these kinds of posts every time something unexpected is observed. Yes, this observation tells us that our knowledge is not perfect. However, these claims that every contradiction between experiment and theory means that scientists don't know very much aren't just wrong but irresponsible, because people believe them.

      The vital point I need to make here is that our finite knowledge is not "all this proves". This proves that 50 solar mass stars can supernova before they shed their hydrogen atmospheres. Now we can take that new piece of knowledge and develop new and better theories about stellar evolution. To just throw are hands up and say "all this proves is that we don't know much" is to overlook a valuable opportunity to advance science.

      --

      Don't Bogart the fish sticks
    6. Re:It happens? by Slumdog · · Score: 2, Interesting

      Clearly all this proves is that we really don't know that much about what's going on in the universe.

      Clearly? I think it depends on your sample size. So far we have only been able to collect very little data about some phenomena, and quite a good amount of data about others. So, we do know a lot about some things.

      With an infinite universe (such as ours) and finite lifespan (such as ours) there is only so much data we can collect to gather inferences about what we observe. I think what you are saying is redundant.

    7. Re:It happens? by DMUTPeregrine · · Score: 1

      If the universe is infinite. It may not be (many, if not most, scientists seem to think it isn't.)

      --
      Not a sentence!
    8. Re:It happens? by Slumdog · · Score: 1

      If the universe is infinite. It may not be (many, if not most, scientists seem to think it isn't.)

      It is infinite compared to our reality, just as an electron is infinitely smaller than a galaxy.

    9. Re:It happens? by guyminuslife · · Score: 4, Funny

      Or, knowing those guys, horribly right.

      --
      I don't believe in time. It's a grand conspiracy designed to sell watches.
    10. Re:It happens? by Anonymous Coward · · Score: 0

      Clearly all this proves is that we really don't know that much about scientific reasoning.

    11. Re:It happens? by rattaroaz · · Score: 5, Funny

      All your post proves is that that you really don't know all that much about ./ers

    12. Re:It happens? by Ragzouken · · Score: 2, Funny

      For sufficiently finite values of infinity.

    13. Re:It happens? by Slumdog · · Score: 1

      For sufficiently finite values of infinity.

      As finite as infinite can be. Interestingly in mathematical analysis it is well known that there are different levels of infinities. For example, the infinity of integers is not the same as infinity of real numbers.

    14. Re:It happens? by WilyCoder · · Score: 2

      I was looking for a reason to get wasted tonight and now I have one. Everyday might be the last day, drink up!

    15. Re:It happens? by ThePeices · · Score: 1

      An electron *IS* infinitely small...it has zero ( mathematically zero ) size...its a point particle.

    16. Re:It happens? by Anonymous Coward · · Score: 1, Insightful

      The set of all integers is countably infinite. The set of all real numbers is uncountably infinite. ;)

    17. Re:It happens? by syousef · · Score: 1

      Clearly all this proves is that we really don't know that much about what's going on in the universe.
      I'm getting tired these kinds of posts every time something unexpected is observed.

      Me too. It took me 3 years of study to not understand much about what's going on in Astronomy, and I haven't even covered the entire breadth of topics I wanted to (let alone depth)...but I guess I should just throw away my Astronomy degree since some slashdot troll thinks we don't know anything...

      --
      These posts express my own personal views, not those of my employer
    18. Re:It happens? by Anonymous Coward · · Score: 0

      Uncountable doesn't mean more infinite, it just means uncountable. One uncountable set can be more uncountable than another, based on cardinality, but infinite is infinite.

    19. Re:It happens? by TheSpoom · · Score: 4, Funny

      Today on MythBusters: What happens when you collide an unmoveable object with an unstoppable force? The results might surprise you!

      --
      It's better to vote for what you want and not get it than to vote for what you don't want and get it.
      - E. Debs
    20. Re:It happens? by Walkingshark · · Score: 1

      An electron *IS* infinitely small...it has zero ( mathematically zero ) size...its a point particle.

      Statements like that are why normal language shouldn't be used to coummunicate physics concepts that exist entirely in the realm of mathmatics.

      Not to mention I always felt like this is most likely an artifact of the use of real numbers where integers and fractions would really serve better.

      --
      The world you experience is only a close approximation of reality.
    21. Re:It happens? by merreborn · · Score: 3, Insightful

      Clearly all this proves is that we really don't know that much about what's going on in the universe.

      I'm getting tired these kinds of posts every time something unexpected is observed. Yes, this observation tells us that our knowledge is not perfect.

      You rush to the defense of human knowledge at a time when our own short-sighted ignorance has just brought us to an era of spectacular failure.

      Surely, if the world's finance "experts" really understood economics, they wouldn't have positioned their companies for the collapses they recently saw. Or did AIG's best and brightest know they were setting their company up for catastrophe?

      I have to believe it was ignorance. We wouldn't be where we are now if our "experts" really understood the big picture.

      Humanity knows very little. But understanding just how little we know makes what little we do understand all that much more precious.

    22. Re:It happens? by Anonymous Coward · · Score: 0

      loose? as in the world is going to "cut foot loose"?

    23. Re:It happens? by NewbieProgrammerMan · · Score: 5, Funny

      Damn those DotSlashers!

      --
      [b.belong('us') for b in bases if b.owner() == 'you']
    24. Re:It happens? by Anonymous Coward · · Score: 3, Insightful

      I was under the impression that it was managers who ran companies, not economists?

    25. Re:It happens? by Anonymous Coward · · Score: 0

      loose? as in the world is going to "cut foot loose"?

      just ignore him. Its a twitter sock puppet.

    26. Re:It happens? by Requiem18th · · Score: 1

      Clearly all this proves is that we really don't know that much about what's going on in the universe.

        OMG! We didn't know 50 solar mass stars can supernova before they shed their hydrogen atmospheres! Quick! Let's ban gay marriage and stem cell research and start praying!

      --
      But... the future refused to change.
    27. Re:It happens? by moderatorrater · · Score: 1

      Agreed. Scientists know a hell of a lot, but what it comes down to is that we've sat on one little spot in one galaxy and made observations and studies as best we can. We have so little to work with on the scale of the universe that it's astounding we know as much as we do, but anyone with a brain can figure out that what we know is a tiny portion of what's out there to discover. It's sad to me that the GP got so defensive about something that is, at its core, true. As a species we know very little right now and it'll be a long time before we know more.

    28. Re:It happens? by FooAtWFU · · Score: 4, Insightful
      Yes... and for that matter, plenty of Economists and Analysts were predicting the impending doom. A few people even managed to make quite a tidy bundle off of it (real estate shorts, in essence). The problem wasn't that nobody knew, it's that nobody was listening because it wasn't what they wanted to hear.

      (Especially the politicians. Nothing so resoundingly bipartisan as the willful ignorance of our impending doom this past decade...)

      --
      The World Wide Web is dying. Soon, we shall have only the Internet.
    29. Re:It happens? by Anonymous Coward · · Score: 0

      I love the Valley Girl dialect.

      "You're going to die?" "Like tubular"..

    30. Re:It happens? by Anonymous Coward · · Score: 0

      the result is a black neal

    31. Re:It happens? by numbski · · Score: 1

      What I find funny is that we're talking about this like it's present-tense.

      "...which lay about 200 million light years away..."

      This didn't happen recently. It quite literally happened 200 million years ago. We just now noticed is all. ;)

      Either that, or we *really* don't have a clue, this just happened, and now we're going to have to send Bruce Willis up to clean up the mess, just like we always do.

      --

      Karma: Chameleon (mostly due to the fact that you come and go).

    32. Re:It happens? by WhiplashII · · Score: 1

      Well, you don't want to waste a good crisis like this!

      --
      while (sig==sig) sig=!sig;
    33. Re:It happens? by lavardo · · Score: 0

      Maybe Will Smith can save the earth again.

    34. Re:It happens? by Ruie · · Score: 4, Insightful

      I think we would all do well to remember what Socrates (approximately, probably) said: "The only thing I know is that I know nothing at all."

      We have made some progress since then. For once, we know that Earth is round and that Universe is 14 billion years old.

      Modern statement would be "there are many interesting questions to investigate".

    35. Re:It happens? by similar_name · · Score: 5, Informative

      Socrates thought the earth was round.

    36. Re:It happens? by Anonymous Coward · · Score: 1, Insightful

      Nu uh dude, that was Operation Ivy!

      All I know is that I don't know nothin.

      And that's fine.

    37. Re:It happens? by JesseL · · Score: 0, Redundant

      We don't know the Earth exists at all. It could all be your own insanity, or a computer simulation. It's certainly convenient to assume that the Earth exists, but it's impossible to prove one way or the other.

      Solipsism is mostly mental masturbation, but it is useful for reminding people to question their assumptions.

      --
      "Prefiero morir de pie que vivir siempre arrodillado!"
    38. Re:It happens? by aqk · · Score: 0

      "The only thing I know is that I know nothing at all."

      Get OUT OF HERE, you poseur!
      You are clearly not a ./er at all!

      Yes, yes... Oh, Please do not respond here, Socrates? Eliza?... Sorry- the jig is up!

      .

    39. Re:It happens? by electrosoccertux · · Score: 1

      I read a good portion of the article as well as the comments in the link, and I'm inclined to believe this is a special interests article written in light of some of Obama's campaign comments about the need to upgrade/repair our power infrastructure. (Btw-- as usual, the problem with the grid is legislative, if this part is fixed then the carriers wouldn't have any problems paying for infrastructure repairs, not to mention upgrades. Fix the legislative problem and the whole situation will basically solve itself-- but of course Congress doesn't want that, they'd rather us be dependent on them aka when it hits the fan, the only option at that point will be massive government infrastructure spending.)

      I'm not saying it's not a problem, I just think the timing with all this is quite funny. Why have we not heard of this in such a doomsday way before now? CMEs have been occurring all the while that we've had our power grid up and happily running. We just need to update our infrastructure to be able to shut down on a moments notice (apparently it takes about 15 minutes currently to shut it down to protect the equipment). Canada had some problems with a CME recently (last 10 years), but they were fixed in 9 hours, a far cry from the doomsday "years!!" that some of the comments after the article claim. Besides, I didn't see anything to suggest this solar polar switch will be any worse than the last 10 we've had. In the mean time, we could send up a better satellite to monitor this stuff.

      Honestly I just want more proof--

      Over the last few decades, western civilisations have busily sown the seeds of their own destruction. Our modern way of life, with its reliance on technology, has unwittingly exposed us to an extraordinary danger: plasma balls spewed from the surface of the sun could wipe out our power grids, with catastrophic consequences.

      Really? I mean, really? That's some fine reporting right there...yes sir..plasma balls spewing forth which wipe out our power grid...our modern way of life is seeding our own destruction!!! Sheesh.

    40. Re:It happens? by digitalchinky · · Score: 2, Insightful

      I'll give you the earth being roughly spherical in shape, but we don't know that the universe is 14 billion years old. That figure is arrived at using more than an assumption or two, it's based on a whole load of things we don't understand, have no data on, or any means to test yet. It might well be accurate, but to say we 'know' is a little premature. Maybe you'll interpret this as nit-picking, I'm not sure. I don't mean for it to be though.

    41. Re:It happens? by pcolaman · · Score: 1

      We just now noticed is all. ;)

      Either that, or we *really* don't have a clue, this just happened, and now we're going to have to send Bruce Willis up to clean up the mess, just like we always do.

      Screw that shit, Chuck Norris and Jack Bauer are already fighting over the rights to round house kick this supernova star to the next universe.

    42. Re:It happens? by digitalunity · · Score: 2, Interesting

      I'll skip modding and reply instead. There are a lot of factors for the economic situation we're in. A lot of them are the feds and politicians faults. Just to name a few, I'll try to be brief...

      • Mortgage terms disclosure rules are antiquated and fantastically inadequate.
      • Due to the above, consumers do not understand the terms of their mortgages and are unknowingly pushed into ARM's with baloon payments or other arbitrarily high fee/prepayment penalty type loans.
      • Broker compensation encourages shady lending tactics such as documentation alterations to increase mortgage eligibility for unaffordable loans.
      • Debt load caps on mortgage lenders were removed a few years back to allow lenders to push more loans through, leading to shaky financial security.
      • Mortgage securitization(the bundling and resale of fractional loan packages) allowed a flood of non-traditional investor money into the realty market such as private and foreign investors. The easy money caused bidding wars, driving home values up far faster than inflation and median income.
      • Securitization was too new for the quants to have a good risk model for securities backed by sub-prime mortgages.
      • Comments in the Federal Reserve Bulletin as early as 1999 showed the feds were aware the realty market was significantly out of sync with inflation. No action was taken.
      • Current SEC rules allow lenders to remove loans from their ledgers after they've been securitized and sold off, even if they were sold off under contractual obligation to take some losses in the event the securities are defaulted on. The net effect is that mortgage lender's financial stability is IMPOSSIBLE to determine, even for investors who read every word of every shareholder disclosure.

      I hope this clears up a few things.

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    43. Re:It happens? by Henry+Pate · · Score: 5, Interesting

      Surely, if the world's finance "experts" really understood economics, they wouldn't have positioned their companies for the collapses they recently saw. Or did AIG's best and brightest know they were setting their company up for catastrophe?

      Rolling Stone had an article in the latest issue titled AIG: The Big Takeover. Here's a small excerpt from it.

      The latest bailout came as AIG admitted to having just posted the largest quarterly loss in American corporate history -- some $61.7 billion. In the final three months of last year, the company lost more than $27 million every hour. That's $465,000 a minute, a yearly income for a median American household every six seconds, roughly $7,750 a second. And all this happened at the end of eight straight years that America devoted to frantically chasing the shadow of a terrorist threat to no avail, eight years spent stopping every citizen at every airport to search every purse, bag, crotch and briefcase for juice boxes and explosive tubes of toothpaste. Yet in the end, our government had no mechanism for searching the balance sheets of companies that held life-or-death power over our society and was unable to spot holes in the national economy the size of Libya (whose entire GDP last year was smaller than AIG's 2008 losses).

      It is truly an amazing article and the presents the clearest picture I've seen of how this came about. I suggest everyone read it.

      --
      Si Hoc Legere Scis Nimium Eruditionis Habes
    44. Re:It happens? by Chris+Burke · · Score: 1

      You need a reason?

      --

      The enemies of Democracy are
    45. Re:It happens? by MishgoDog · · Score: 4, Informative

      A statistician friend of mine pointed me to a study (that I have now lost) which showed some very interesting figures.

      The premise showed that basically, if you selected 100 investment portfolios at random (possibly with some basic rules, I'm not sure), exactly the same proportion would exceed to the same extent as if you the proportion of stock brokers who beat the market.

      The point is, if you missed it, that successful investors are no more than stastical effects :)

      Now, in reference to 'plenty of economists & analysts were predicting the impending doom', a lot weren't. Pick ANY situation, and you'll have plenty of analysts predicting both ways - and the ones who turn out to be correct are invariably labelled insightful, when no doubt a lot of them are just lucky.

    46. Re:It happens? by c6gunner · · Score: 1

      I think we would all do well to remember what Socrates (approximately, probably) said: "The only thing I know is that I know nothing at all."

      No, He didn't.

      All I know is that you don't know what Socrates said :)

    47. Re:It happens? by shaitand · · Score: 1

      I'm pretty sure the difference is a job title since they both learned how to manage money in the same harvard mba courses.

    48. Re:It happens? by shaitand · · Score: 1

      Which is exactly why all these morons need to get the idea that 'confidence' is what will bring us out of this depression.

      Instead of concentrating on building wealth, we instead switched to a system where we pretend that liquidity is a way to build the economy instead of a way to mask its problems and delay the onset of symptoms.

    49. Re:It happens? by Maguscrowley · · Score: 1

      I think it's better to say that w have the understanding of the universe akin to a 6y/o and a car. We know what happens when the wheel's move and turn, what makes it do that, and we know that something called the engine (gravity) drives it but that's about it.

    50. Re:It happens? by Anonymous Coward · · Score: 0

      if you selected 100 investment portfolios at random, exactly the same proportion would exceed to the same extent as if you the proportion of stock brokers who beat the market.

      So what you're saying is that economists could benefit from a preview button?

    51. Re:It happens? by DigitalWallaby · · Score: 1

      Only if Kevin Bacon is involved.

    52. Re:It happens? by amRadioHed · · Score: 4, Insightful

      We know we can observe the Earth, and that's all that matters. Whether the world we observe is physical, simulated, or imagined is irrelevant, as long as it has consistent rules for us to discover.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    53. Re:It happens? by nedlohs · · Score: 1

      We have heard of it before now. It was episode two of "Perfect Disaster" back in 06 for example: http://www.imdb.com/title/tt0817543/episodes

      Of course the next maxima happens to be 2012 which is already an "end of the world" year for a bunch of morons.

      Of course we didn't all die in 2003.

    54. Re:It happens? by Ihlosi · · Score: 2, Insightful
      Pick ANY situation, and you'll have plenty of analysts predicting both ways - and the ones who turn out to be correct are invariably labelled insightful, when no doubt a lot of them are just lucky.

      People who trumpet their opinions about the stock market in public can't have too much confidence in what they're saying. If you really know what the stock market will be doing in the future, you shut the hell up and adjust your investments accordingly. Then, there's no ???, just profit.

    55. Re:It happens? by Anonymous Coward · · Score: 0

      You are clearly not a ./er at all!

      And you are clearly confused about where you are.

    56. Re:It happens? by Kratisto · · Score: 3, Interesting

      Actually, based on data collected from the Cosmic Microwave Background, our estimation of the Universe's age being about 13.7 billion is accurate within about a 2 billion year margin. Basically, all you have to do is extrapolate what the CMB looks like now back a few billion years and it hits a singularity, which we refer to as the beginning of the Universe (though it may or may not be). It would take an extremely revolutionary discovery to discount this sort of data.

      --
      Conscience is the inner voice which warns us that someone may be looking.
    57. Re:It happens? by hummassa · · Score: 1

      Yeah, if anyone "said" (wrote) anything, it was Plato :-D
      Sócrates invented the blind heel pass :-P

      --
      It's better to be the foot on the boot than the face on the pavement. ~~ tkx Kadin2048
    58. Re:It happens? by dna_(c)(tm)(r) · · Score: 1

      and the hole in the economy is unaccountable infiniti

    59. Re:It happens? by Yvanhoe · · Score: 1

      And that some guy has bigger guns than we have.
      Ender used the Dr Device on a planet, but how would a star react ?

      --
      The Wise adapts himself to the world. The Fool adapts the world to himself. Therefore, all progress depends on the Fool.
    60. Re:It happens? by MichaelSmith · · Score: 1

      Mortgage terms disclosure rules are antiquated and fantastically inadequate.

      Looking at the speed with which the US mortgage market collapsed I think it is more likely that a lot of home owners decided to cash in by walking away from their homes. In other words, they knew exactly what the terms of their mortgages were.

    61. Re:It happens? by dna_(c)(tm)(r) · · Score: 1
      the limit of function as x approaches infiniti:
      • x^2/x
      • x/x
      • x/x^2

      are different. There are different meanings of infiniti, depending on how you look at things...

    62. Re:It happens? by CautionaryX · · Score: 1

      The Bible in various places describes the world as round as well.

      Isaiah 40:22 and parts of Job are some examples.

    63. Re:It happens? by AlecC · · Score: 5, Insightful

      But that is based on the assumption that the CMB is, indeed, the relic of the Big Bang, which is one of the assumptions referenced. And that the Hubble shift is, indeed, caused by the expansion of the Universe. Of course, I do not really doubt this, but these are still very indirect deductions. One could imagine a measurement which cast doubt on all of them - e.g. speed of light changing with time, in which case the whole Universe would probably need to be rescaled.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    64. Re:It happens? by AlecC · · Score: 2

      Which just shows that economics and finance are not, in any sense we generally recognise, sciences. Just using mathematics and graphs does not make something a science. Economics obviously does not meet the criteria of an experimental science like physics or chemistry: you cannot perform repeatable experiments. Nor does it meet the criteria of an observational science like astronomy or palaeontology: huge numbers of essentially comparable observations (take millions of star photos, collect rooms full of fossils).

      Aside from these problems, economics suffers from insufficient isolation: the elements being measured react not only to the measurement but to the theories being made about the measurements.

      Therefore it is not reasonable to relate any problems in the economy and financial markets to the body of knowledge we generally call science.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    65. Re:It happens? by Gandalf_Greyhame · · Score: 4, Interesting

      you used an example regarding the speed of light changing with time. I recall reading an article about a year ago, where Spanish scientists have proposed a theory that time is in fact slowing down. This theory is supposed to help explain why the universe appears to be continually expanding at an increased rate.

      Naturally this is only a theory, as is all science, but it does at least explain why we would see the expansion of the universe accelerating. Also, if proven, it would cause a lot of other theories, such as the age of the universe, to be reworked.

      --
      I am not stubborn. I am right!
    66. Re:It happens? by Ihlosi · · Score: 1
      Economics obviously does not meet the criteria of an experimental science like physics or chemistry: you cannot perform repeatable experiments.

      In that case, physics also isn't an experimental science since you can't really perform repeatable experiments in astrophysics. Oh, and neither is biology, since you can't really perform repeatable experiments on ecosystems.

      Just because you can't perform large-scale experiments, or because the results of a single experiment have a degree of randomness (*cough*quantum physics*cough*), doesn't mean that experiments are impossible.

    67. Re:It happens? by AlecC · · Score: 1

      Which is why I classified astronomy, of which astrophysics is a part, as an observational science in the very next sentence. Much of biology is also observational, but increasing amounts are becoming experimental, for example as people are able to construct small scale repeatable ecosystems.

      I was very explicitly trying to make the point that not all science is experimental. Collecting a large number of observations of equivalent objects is also science. But observational science requires a large number of essentially equivalent observations: watch a planet for years, observe tens of thousands of stars, collect tens of thousands of fossils, observe strata at hundreds of locations. Economics cannot do that: there is only one world economy, and national and local economies are too different to get comparable observations.

      --
      Consciousness is an illusion caused by an excess of self consciousness.
    68. Re:It happens? by hesaigo999ca · · Score: 1

      Or how to interpret it....

    69. Re:It happens? by Anonymous Coward · · Score: 0

      See how much dumber we are now?

      People think they actually know something about anything.

      Also, assuming that because he lived before Columbus he must therefore have thought the earth to be flat just proves how little you actually know.

    70. Re:It happens? by Ihlosi · · Score: 1

      Economics cannot do that: there is only one world economy, and national and local economies are too different to get comparable observations.

      There's also only one world ecosystem (biology), one universe (sorry to all theoretical physicists - no experiments that mess with universal constants for you), etc. I'm pretty sure that for each and every science, you can find areas that aren't experimentally accessible, nor observational. That still doesn't make the entire field "non-science".

      "Believe us. Experiments are impossible. It's too complex for humans to understand." ... if I want to hear that, I go to church.

    71. Re:It happens? by msormune · · Score: 1

      How is it possible to not know anything, if you know that? Funny guy that Socrates, it probably is a joke :)

      And we DO know a LOT about universe, there's no denying that.

    72. Re:It happens? by Anonymous Coward · · Score: 0

      Supernova crashes windows in village 1 mile from detonation site? Damn plausible I would think

    73. Re:It happens? by Lumpy · · Score: 2, Insightful

      Dude chill. In reality. Specifically astrophysics. the amount we know is infinitesimally small compared what is needed to know about it.

      See that single carbon atom, there on your desk. That's how much we know in relation to the planet, now compare that to the universe and you start to get it. Any good honest astronomer and astrophysicist will tell you that.

      Quit trying to make us as a species more enlightened than we really are. We are barely out of the apes beating each other over the head with sticks phase.

      --
      Do not look at laser with remaining good eye.
    74. Re:It happens? by Anonymous Coward · · Score: 0

      For twice, we don't know grammar.

      Really, if you look at all the "Onece we thought that x, now we know that y", you gotta ask yourself how much of what we now "know" will be something we in the future will say the same thing about.

      For the age of the universe in particular, there has been many changes in that estimate, and current estimate as far as I know requires matter to move faster than speed of light for some periods or something like that. That is IF current assumptions hold. For all we know every 1 million years or so something very strange may happen in the universe as a whole. The whole scenery may change, the sky may change color and the stars may be replaced. All our current data is based on assumptions. You just cannot say anything sure about the real world without assumptions. All experiments have them. Especially the basic ones, like we are not brains in a vat.

    75. Re:It happens? by Anonymous Coward · · Score: 0

      Progress does not involve replacing one theory that is wrong with one that is right, rather it involves replacing one theory that is wrong with one that is more subtly wrong.
      -- Hawkin's Law

    76. Re:It happens? by bami · · Score: 1

      I think a more appropriate response to this topic, considering the lead in that movie, should be "whoa".

    77. Re:It happens? by Anonymous Coward · · Score: 0

      Isaiah 40:22 "He sits enthroned above the circle of the earth, and its people are like grasshoppers. He stretches out the heavens like a canopy, and spreads them out like a tent to live in."

      This says the Earth is a circle, not round. This passage suggests the earth is a flat circle, not a round sphere. Next example please.

      http://answering-christianity.com/earth_flat.htm

    78. Re:It happens? by JasterBobaMereel · · Score: 1

      Number of 50+ Solar mass stars that had been observed to go supernova : 0

      Number now : 1

      Most people would allow the theory to be incorrect with no experiments run ...

      --
      Puteulanus fenestra mortis
    79. Re:It happens? by rcamans · · Score: 1

      Uh, the earth is approximately round, not exactly round. Roundish, sort of round. With harmonics of waves modulating the roundness. Why the harmonics?
      And this is approximately pear shaped?
      So the earth is geek shaped? Maybe that is why so many geeks live in their mother's basements? To get closer to the Uber-geek shape?

      --
      wake up and hold your nose
    80. Re:It happens? by mcgrew · · Score: 1

      We are about to loose civilization...

      We're going to set civilization free? Are we setting it free to fight or help this new form of "global warm/toasting?"

      I thought civilization was already free... at least the rich people in it?

    81. Re:It happens? by Anonymous Coward · · Score: 0

      "We know we can observe the Earth, and that's all that matters.."

      Uh..sure. Thats all that matters. Are you kidding?
      Tell that to an asteroid on its way to us. Or a supernova a few light-years away!

    82. Re:It happens? by Ihlosi · · Score: 1

      This passage suggests the earth is a flat circle, not a round sphere.

      Actually, it suggests that the earth is one-dimensional, since a circle only contains points with a fixed distance from the center. What you mean would be a disk, which contains all points with a distance less than or equal to the radius.

      Of course, you're quoting from a source that has been trans(-muti-)lated (possibly several times), and the original connotation of the word has been lost completely.

    83. Re:It happens? by digitalunity · · Score: 1

      Many found out after it was too late when their rates reset or balloon payments were due. In fact, under the 1974 rules, it wasn't even required for mortgages to disclose prepayment penalties, meaning even people who otherwise CAN afford to refinance their ARMs are in the hot seat.

      One factor I should have mentioned in my first list is that over 70% of subprime mortgages are closed without any down payment at all. This is quite counter to the past, where you might put down up to 20% or maybe 10% of the loan value. It was important for lenders in the past to be sure consumers had a vested stake in their homestead. Now, since they have nothing vested, as soon as their mortgage goes upside down or they discover how predatory their loan terms are, they have nothing keeping them from walking away.

      I can tell you, the only people getting foreclosed on who "cashed in" are those who very recently took large equity mortgages and then defaulted on both the first and second loans.

      The lenders are more to blame for our current situation then stupid consumers. They threw caution to the wind in the pursuit of profits and gave fantastically large amounts of money to consumers who they knew couldn't afford it. Consumers aren't faultless here

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    84. Re:It happens? by mcgrew · · Score: 2, Insightful

      How ironic, someone with mod points skips modding to post an offtopic comment in response to another offtopic comment.

      This comment is offtopic as well. Modding myself down with the "no karma bonus".

    85. Re:It happens? by Trails · · Score: 1

      Solipsism is entirely mental masturbation

      Fixed that for ya. Solipsism, especially of the type you indulge in above, is not useful to remind people to question anything, unless they've consumed significant amounts of LSD. "Dude, are we the dreamers, or the dreamed?" only makes stoners think(and I use the term loosely).

      If you want to challenge people's assumptions, challenge meaningful assumptions. For example, I heard that astronomers just observed a supernova that occurred when earlier than predicted, so we're not sure why it happened. Pretty cool...

    86. Re:It happens? by Anonymous Coward · · Score: 0

      You got that from South Park!

    87. Re:It happens? by Anonymous Coward · · Score: 0

      No...this just clearly proves that Soran keeps trying to go back into the nexus

    88. Re:It happens? by geoffrobinson · · Score: 1

      So why do you assume those rules are going to stay consistent into the future?

      --
      Except for ending slavery, the Nazis, communism, & securing American independence, war has never solved anything.
    89. Re:It happens? by digitalunity · · Score: 1

      I still plan to use the points, just not in this thread. And it's hard to stay on topic when people are often such idiots about science topics.

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    90. Re:It happens? by GMFTatsujin · · Score: 1

      I'd hardly call the CMB an assumption -- at least as far as the word linguistically implies guesswork.

      The understanding of the CMB is based on observations correlated with data from elsewhere. It all stands up well with what we know from other fields of study. It makes predictions about seemingly unrelated phenomena that can be observed to conform with expectations. That's much more than an assumption. (It doesn't resoundingly land on "indisputable," but science thrives on a constant state of doubt.)

    91. Re:It happens? by huckamania · · Score: 1

      There was an article recently about Gravity Waves which mentioned that they can affect the frequency of light. I wondered at the time whether there could be some similar effect that causes the red shift we have observed throughout the Universe. Something like a standing wave that affects light coming into our Galaxy.

      My current favorite thought experiment replaces the big bang with a big coalescence. Imagine 2 water drops, one yellow and one blue. The point that we deem the big bang is the point that they begin to merge. The universe that we observe is the resulting green parts, or perhaps the boundary area. Coalescence could account for the increasing rate of expansion of the Universe.

    92. Re:It happens? by Kismet · · Score: 2, Informative

      You are using the language of the Faithful to describe scientific knowledge.

      "We" don't know anything. The people who "know" are the ones who have done the primary research. Have you? The rest of us have to look at evidence, as 2nd-hand witnesses, and then accept the testimony of those we have no reason to disbelieve.

      For instance, "you" have likely only seen third-party evidence of the roundness of the earth. Perhaps video footage and photographs. Maybe from high up in an airplane, you noticed the earth's curvature. That isn't a terribly conclusive piece of first-hand evidence, though.

      What primary evidence do you have for the age of the universe? Probably none. But, you believe those who say they do have evidence. You take their word for it in good faith.

      The scientific statement is this: It is certain that the earth's shape is a spheroid and that evidence suggests the age of the universe to be approximately 14 billion years.

    93. Re:It happens? by Bemopolis · · Score: 1

      You missed one important leg that broke off of the stool: credit default swaps. Essentially, the mortgage crisis was multiplied as bets were placed on the failure of these securitizations, since there was no limit to how many bets could be placed on a single one. Paying off those bets — or rather, being unable to afford to pay off those bets — is what killed the capitalization of firms such as AIG.

      --
      "I guess the moral of the story is, don't paint your airship with rocket fuel." -- Addison Bain
    94. Re:It happens? by MoeDumb · · Score: 1

      Socrates thought the earth was round.

      Scientists think the solar system evolved.

      --
      Mod Me Up. You'll make a grown man cry.
    95. Re:It happens? by kalirion · · Score: 1

      No, this clearly proves that someone has already developed the Sun Crusher. We're losing the interstellar arms race here, people! Let's get cracking!

    96. Re:It happens? by Anonymous Coward · · Score: 0

      Taken from another guy on Slashdot...

      There's a difference between lose and loose. One refers to you and the other - your mother.

    97. Re:It happens? by edumacator · · Score: 1

      CMB looks like now back a few billion years and it hits a singularity

      That's assuming you don't subscribe to one theory from string theory, brane collision. If that theory gains momentum, and it has some within string theory community, the universe might actually be a trillion years or older.

      Of course, IAAET (I am an English teacher), so I could be wrong.

    98. Re:It happens? by Anonymous Coward · · Score: 0

      I have noticed that mountains disappear below the horizon as you drive away from them and land disappears below the horizon as you take a boat out on the bay. Does that count? I'd imagine that everyone has seen that.

    99. Re:It happens? by Impy+the+Impiuos+Imp · · Score: 1

      > has exploded as a supernova at a much earlier date than the one predicted by astronomers

      Astronomer: Our sun will explode in 5 million years.

      Innumerate Person: Oh no! That's horrible!

      Astonemer: 5 million years is a long time away, ma'am.

      Innumerate Person: Oh! I thought you said 50,000 years. Whew!

      --
      (-1: Post disagrees with my already-settled worldview) is not a valid mod option.
    100. Re:It happens? by Anonymous Coward · · Score: 0

      hmm...time slowing down...so it "used to be" somewhat "faster". So the universe could be, say 6000 years old after all.

      Damn creationists! Where do I turn in my science card!?

    101. Re:It happens? by Anonymous Coward · · Score: 0

      Splitters!

    102. Re:It happens? by Anonymous Coward · · Score: 0

      Hopefully you don't expect people to take your opinions seriously with responses as overblown as that.

    103. Re:It happens? by Anonymous Coward · · Score: 0

      hello?
      what do you mean by "only a theory"?
      scientific theory is a generalization of many observation and if you make an experiment then >95% of the cases (and even more) will be explained by the theory.
      stop sounding like ID moron questioning validity of theories saying "it's only a theory" like it were different "in practice".

    104. Re:It happens? by Anonymous Coward · · Score: 0

      bash: ./ers: No such file or directory

      I guess I don't know that much

    105. Re:It happens? by NoOneInParticular · · Score: 1
      It's even worse than that for the role of AIG. The credit default swaps are essentialy insurance against people defaulting on their loans/mortgages. AIG effectively insured the entire financial industry against bad loans. There was no oversight on this, and nobody really questioned whether AIG could in fact insure the entire world for bad debt. Guess what, they couldn't, and now the taxpayers are picking up the bill, and the money is used to pay off the guys that took the insurance (read: the rest of the financial world).

      Tricky thing is, if AIG would go bust, the worldwide financial industry would be so much exposed to bad debt that they would crumble as well. In my view, it's still an open question if it wouldn't have just been better to let it happen, and pour the money into the consumer sector to safeguard savings and cushion against predatory debt collecting. Goldman & Sachs, Bank of America, Citi, and the rest of the gang have taken a huge bet and lost. They forgot to do their due diligence on the solvability of the amazing trick of the dissapearing risk. Furthermore, the rating agencies that gave this scheme the triple A's should be disbanded, their executives tarred and feathered.

    106. Re:It happens? by pwfffff · · Score: 1

      Now THAT'S good journalism. I'm often angered by the way that many publications nowadays seem to ignore the fact that most people don't know just how big a billion is, and even I didn't see the '61.7 billion' number in quite the same light as I do now, having seen the $/second breakdown. $7.75k/sec. God damn.

    107. Re:It happens? by ceoyoyo · · Score: 1

      Economics isn't a science. Yes sometimes economists say it is, but it isn't. There are varying qualities of human "knowledge." Lumping everyone who claims to know something about something into the category "experts" is silly. At best.

    108. Re:It happens? by amRadioHed · · Score: 1

      Because they have in the past. It certainly seems premature to assume they will change if they haven't yet.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    109. Re:It happens? by Gandalf_Greyhame · · Score: 1

      That is not what I meant by "only a theory" my friend. But thanks for jumping to the wrong conclusion. What I was trying to point out is that everything involved in science is a theory and therefore can be disproven or altered as our understanding progresses.

      Also, I would like to point out, that the entire purpose is to question the validity of all theories. Theories are there to be challenged, because without them being questioned the Earth would still be flat, the Sun would still revolve around the Earth and all materials would still be made up of the four elements of earth, fire, air and water.

      Progress is made, not by sticking to the status quo, but by questioning our assumptions and arriving at different conclusions via experimentation.

      --
      I am not stubborn. I am right!
    110. Re:It happens? by HiThere · · Score: 1

      A nice piece of evidence that both the Earth and Luna are spheres (approximately) is the shape of the shadow that the earth casts on the moon. And the way it doesn't change during the night. There may be other explanations, of course, but most of them would seem a bit strange to me.

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
    111. Re:It happens? by Kismet · · Score: 1

      Ah, yes. And, of course, you know that it is a shadow, and that it is the earth's shadow, and that the sun provides the light source for it, and that the moon isn't self-illuminating with some internal source of the shadow.

      I could come up with the earth-shadow hypothesis myself, you know. And I could use it to demonstrate that the earth is probably round in shape.

      But that would fall short of an actual theory, because I haven't done anything to demonstrate that my hypothesis is the only reasonable explanation.

      Luckily, others have done so. And I believe them. It seems intuitive, it is well explained, it fits with other bits of information from other sources (including my own observations), and I have no reason to believe that my 2nd-hand evidence is fabricated.

      So, I too "know" that the earth is round. Just not first-hand.

    112. Re:It happens? by complete+loony · · Score: 1

      I have often wondered if the wave function of a single photon can collapse in transit. Creating both the observed red-shift and scattering low energy CMB photons in the process. But I don't have the maths skills to explore the idea properly.

      --
      09F91102 no, 455FE104 nope, F190A1E8 uh-uh, 7A5F8A09 that's not it, C87294CE no. Ah! 452F6E403CDF10714E41DFAA257D313F.
    113. Re:It happens? by complete+loony · · Score: 1

      On that topic, here's some required reading.

      --
      09F91102 no, 455FE104 nope, F190A1E8 uh-uh, 7A5F8A09 that's not it, C87294CE no. Ah! 452F6E403CDF10714E41DFAA257D313F.
    114. Re:It happens? by Anonymous Coward · · Score: 0

      It's not "a theory". It's conjecture or at best a set of speculative hypotheses in need of testing. If it is developed into a well-defined and related set of scientific hypotheses that survive all the testing, and is an improvement in terms of utility (e.g. increased predictive power, reduced computational demands, less need to grind out exact numerical solutions to Einstein field equations for identical matches to observation of real systems, reductions in free variables, etc.) then it would replace existing theory.

      Note that the 4-spacetime of General Relativity is a very accurate theory that models reality well in the limit of large objects and low particle energies. Although there are several models which probably model reality equally well, GR is kept because the utility of not yet proven marginal improvements at the limit of GR's accuracy is outweighed by the simplicity of retaining a minimal number of dimensions. (It would be better if there was a way to reject 4-spacetime in favour of a lower number of dimensions (e.g., using only 3-space after correcting for the metric expansion of space) while retaining accuracy, since in general the fewer the dimensions in a geometry, the more computationally simple any solution will be).

      A non-geometrical framework is probably hard to relate to GR or Newtonian Mechanics at all, and in both useful (within limits) mechanics theories, time is a coordinate not a rate so "time slows down" needs serious explanation and qualification.

    115. Re:It happens? by Anonymous Coward · · Score: 0

      An electron has ... mathematically zero size ... it's a point particle

      Perhaps you would be good enough to indicate the experiment which has demonstrated an electron with no de Broglie wavelength, or perhaps you can invalidate QFT?

      In Standard Model physics, point particles have no known substructure (they participate in all-or-nothing interactions; they do not divide). Zero spatial extent is a convenient simplification where possible, as in Minkowski spacetime, where one can read the all-or-nothing participation in interactions that way rather than as a sharply peaked function at that location.

    116. Re:It happens? by HiThere · · Score: 1

      A theory isn't required to prove that it's the only possible explanation, merely that everything that it predicts matches observation. For that matter one CAN'T prove that there's only one explanation. Solipsism is an alternative explanation for everything. So is that we're living in a virtual reality. You can't distinguish between the predictions of those two theories.

      Thus, I believe the earth is round. I don't know it. Knowledge refers to direct observations. Belief to the stories by which those observations are made into a coherent picture.

      --

      I think we've pushed this "anyone can grow up to be president" thing too far.
    117. Re:It happens? by kmac06 · · Score: 1

      The point is, if you missed it, that successful investors are no more than stastical effects :)

      You better tell that to Warren Buffet, before his luck runs out!

    118. Re:It happens? by RockDoctor · · Score: 1

      My current favorite thought experiment replaces the big bang with a big coalescence.

      Read up on Turok and Steinhardt's "ekpyrotic universe" theory. Not exactly the thoughts that you're expressing, but close enough to (probably) grab your attention.

      Arxiv has plenty of papers on the subject, and it's a sufficiently unusual word that it makes for easy searching. Your reading list, should you choose to accept it.

      --
      Birds are not dinosaur descendants;birds are dinosaurs, for all useful meanings of "birds", "are" and "dinosaurs"
    119. Re:It happens? by tabrnaker · · Score: 1

      No, that's what the translation suggests interpreted by a myopic person that can't see past his cultural/time filter.

    120. Re:It happens? by tabrnaker · · Score: 1
      So it was basically due to stupid people making decisions without understanding the possible consequences? Oh, and greedy people exploiting the stupid people.

      How is any of that a problem with the system?

      When are we going to figure out that humans and ignorance are always the problem of every system, and fix that!

    121. Re:It happens? by Bonobo_Unknown · · Score: 1

      I always felt that incy wincy was a better term to describe something that is infinitely small.

      --
      We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
  2. was million times brighter by Anonymous Coward · · Score: 0

    was million times brighter

    er... in soviet russia, editors grammar check you?

  3. Damn Mythbusters. by Fumus · · Score: 4, Funny

    Now they "accidentally" blew up a star. Great!

    1. Re:Damn Mythbusters. by Slumdog · · Score: 1

      Now they "accidentally" blew up a star. Great!

      But, it was an industrial accident.

    2. Re:Damn Mythbusters. by rrohbeck · · Score: 1

      I wonder how many windows that broke.

    3. Re:Damn Mythbusters. by lavardo · · Score: 0

      I'm sure it broke a lot of Windows. It surely didn't break my Ubuntu though.

    4. Re:Damn Mythbusters. by robinesque · · Score: 1

      I accidentally a singularity.

    5. Re:Damn Mythbusters. by baKanale · · Score: 1

      Who do they think they are? SG-1?

    6. Re:Damn Mythbusters. by Spatial · · Score: 1

      I wonder if they can condense the remaining Buster vapor into a dummy mold...

  4. God's plan... by Faizdog · · Score: 5, Funny

    It wasn't supposed to go nova now, but it was part of God's plan so that our ancestors would know the way here after peeking in the Temple. They could've had more time to look around, but their enemies were right behind them.

    --
    -"Those who fought today will die tommorow."-
    1. Re:God's plan... by richdun · · Score: 4, Informative

      Okay, who's the genius mod who thought that was an actual religious reference? Someone needs their Geek Card confiscated.

    2. Re:God's plan... by somersault · · Score: 5, Funny

      Someone needs their Geek Card confiscated.

      So say we all!

      --
      which is totally what she said
    3. Re:God's plan... by Icegryphon · · Score: 2, Insightful

      "Life here began out there." These are the first words of the Sacred Scrolls!

    4. Re:God's plan... by Anonymous Coward · · Score: 0

      SO SAY WEL ALL!!!

    5. Re:God's plan... by moosesocks · · Score: 1

      You know He doesn't like to be called that....

      --
      -- If you try to fail and succeed, which have you done? - Uli's moose
  5. dot dot dot by pasv · · Score: 0

    boom!

  6. My guess... by Anonymous Coward · · Score: 0

    The scientists got a slight off line on an Exponential Equation and this caused the time theory relation to size and power to go off just alittle and make it off by a certain amount of time...

  7. The element of chance by cats2ndlife · · Score: 1

    One incident in a static subsystem in isolation with the rest of the system may disprove a theory about that subsystem, but the universe is dynamic whole, so this incident doesn't say much except for what it is, a weird incident. For all I know it could have been a Death Star committing suicide by shooting at a sun 200 million years ago.

    1. Re:The element of chance by Anonymous Coward · · Score: 1, Insightful

      Or, an alien species shot a missile into Sun to collapse it for their own purposes.

    2. Re:The element of chance by JustOK · · Score: 1

      ...it could have been a Death Star committing suicide by shooting at a sun 200 million years ago.

      Sun shot first!!!!

      --
      rewriting history since 2109
    3. Re:The element of chance by lavardo · · Score: 0

      alien = North Korea ?

  8. Dumq question by Anonymous Coward · · Score: 0

    is this the first time that we have seen a black hole created? I am just wondering if it is possible that a black hole came in behind it and caused this?

    1. Re:Dumq question by oodaloop · · Score: 1

      There's no such thing as a dumq question. No, I mean it. There really is no such thing.

      --
      Tic-Tac-Toe, Global Thermonuclear War, and relationships all have the same winning move.
    2. Re:Dumq question by Anonymous Coward · · Score: 0

      There's no such thing as a dumb question. No, I mean it. There really is no such thing.

      However, there certainly are a lot of inquisitive idiots around here...

    3. Re:Dumq question by Anonymous Coward · · Score: 0

      What?

    4. Re:Dumq question by Anonymous Coward · · Score: 0

      What ?

    5. Re:Dumq question by digitalunity · · Score: 1

      That's a lie. I'm taking technical math at a 2 year college and today, a student had an argument with a teacher about how to calculate the area of a rectangle. The student was probably 45-50 years old.

      I guess my point is that there truly is such a thing as a stupid question. The stupidity of hte question lies entirely in the context of who it is that is asking.

      --
      You can't legislate goodness. Let each to his own destiny, by will of his freely made choices.
    6. Re:Dumq question by Anonymous Coward · · Score: 0

      That's not true. I have done phone based tech support for years, and I promise you that some of my customers have the dumbest questions I ever heard. For example,

      "When you say right click that means I use the right button. So, when you say left click does that mean I use the left button?"

      See, that IS a dumb question. Stupidity infests it like a disease. And it is only one of a great many dumb questions that I have endured as part of the Internet Help Desk.

    7. Re:Dumq question by Anonymous Coward · · Score: 0

      whoosh

  9. Anger management by jweller13 · · Score: 1

    Opps, I think a star missed his anger management class.

  10. Re:Something else that's huge by Ungrounded+Lightning · · Score: 0, Offtopic

    Yeah, that is big black hole.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
  11. Darn McKay is at it again by youn · · Score: 1

    I know ZPMs are rare... but he really gotta get a hold of himself. PS: I welcome our star blowing overlords... looks like you really dont wanna get on their bad side

    --
    Never antropomorphize computers, they do not like that :p
    1. Re:Darn McKay is at it again by Anonymous Coward · · Score: 0

      "I welcome our star blowing overlords"

      Porn stars will be are new overlords?
      Nice.

  12. Stars are prima donnas by Anonymous Coward · · Score: 0

    This one was clearly lying about its age.

  13. 200 light years by Endo13 · · Score: 2, Insightful

    But since it was 200 light years away, that means it actually happened 200 years ago, right?

    Talk about old news...

    --
    There is no -1 Disagree mod. Slashdot.org/faq defines mod options. USE IT.
    1. Re:200 light years by Dreen · · Score: 5, Informative

      200 million, not 200

    2. Re:200 light years by Endo13 · · Score: 1

      Darn you're right. Wow, that's *really* old news.

      --
      There is no -1 Disagree mod. Slashdot.org/faq defines mod options. USE IT.
    3. Re:200 light years by TheRaven64 · · Score: 1

      If it were 200 light years, we would probably be all dead, since we would be hit by a very large dose of x-rays at the same time that the light arrived. Fortunately, it is (or, rather, was) 200 million light years away.

      --
      I am TheRaven on Soylent News
    4. Re:200 light years by newcastlejon · · Score: 1

      Am I the only one that is amazed that we as a species are watching events happen that are far, far outside our galaxy?

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    5. Re:200 light years by Anonymous Coward · · Score: 0

      I'm amazed you're watching things far outside your own basement.

    6. Re:200 light years by WCMI92 · · Score: 4, Informative

      "200 million, not 200"

      Yep, had it been 200LY it would have been brighter than the moon in the sky and would have been visible even in the daytime...

      200LY is seriously dangerously close to us for a supernova...

      --
      Corporatism != Free Market
    7. Re:200 light years by Samah · · Score: 4, Insightful

      Am I the only one that is amazed that we as a species are watching events happen that are far, far outside our galaxy?

      And yet our galaxy is only a miniscule fraction of the observable universe, which is also a miniscule fraction of the theoretical "entire" universe (the shape of which is still heavily debated).

      To quote Douglas Adams:

      The simple truth is that interstellar distances will not fit into the human imagination.

      --
      Homonyms are fun!
      You're driving your car, but they're riding their bikes there.
    8. Re:200 light years by Walkingshark · · Score: 1

      If it was 200 light years away you would be dead.

      --
      The world you experience is only a close approximation of reality.
    9. Re:200 light years by newcastlejon · · Score: 1

      I'm amazed you're watching things far outside your own basement.

      I'm a Brit, you insensitive clod! I've never even seen a basement!

      --
      If God forks the Universe every time you roll a die, he'd better have a damned good memory.
    10. Re:200 light years by lavardo · · Score: 0

      I'm amazed you're watching things far outside your own cave.

    11. Re:200 light years by Rick+Genter · · Score: 1

      To better quote Douglas Adams:

      Space is BIG.

      --
      Don't underestimate the power of The Source
    12. Re:200 light years by Anonymous Coward · · Score: 0

      Yeah, just imagine how many times it's been /.ed already...

    13. Re:200 light years by techno-vampire · · Score: 1
      And yet our galaxy is only a miniscule fraction of the observable universe

      It may be that Wakko Warner said it best: "It's a Great Big Universe" and we're a tiny little speck about the size of Mickey Rooney.

      --
      Good, inexpensive web hosting
    14. Re:200 light years by MichaelSmith · · Score: 1

      If it were 200 light years, we would probably be all dead, since we would be hit by a very large dose of x-rays at the same time that the light arrived.

      Well, half of us, anyway.

    15. Re:200 light years by Dreen · · Score: 2, Insightful

      Now this is what I haven't written in the post before, since I wasn't sure. I know that it would be dangerous, but just how dangerous? I took a look and it seems it has been proposed that a supernova explosion at the distance of roughly 100 light years away was the cause of Ordovician Extinction which killed 60% of species on Earth by depleting the ozone layer through chemical reactions in the atmosphere that were the aftermath of the explosion.

      Further reading of this article says apparently in 1998 we were hit by gamma/x rays from supernova explosion 600 LY years away. So there definitely is a danger zone up to where? 300 LY? Another question: Would the explosion that is near enough to cause serious damage (as in, killing most people) be visible by observers BEFORE gamma and x rays do any visible damage?

    16. Re:200 light years by Ihlosi · · Score: 1

      Well, half of us, anyway.

      Yes. The other half is lucky, they can choke on the nitrous oxide that our atmosphere got turned into.

    17. Re:200 light years by DrMaurer · · Score: 1

      At 200 light years from a supernova, we would be fine. It'd need to be about 30 or so to be a pain.

      Source? I got your source right here: http://www.tass-survey.org/richmond/answers/snrisks.txt

      --
      Dan
    18. Re:200 light years by TheRaven64 · · Score: 1

      Interesting. I've seen a figure of 50ly quoted before as deadly for a nova and 'a lot more' as deadly for a supernova. Looking at your source, they are calculating based on figures from a type Ia supernova, which is the smallest kind, arising from a star of around one solar mass. The supernova in question is from a 50 solar mass star, which means it is almost certainly a type II supernova, which would emit vastly more radiation than a Ia.

      --
      I am TheRaven on Soylent News
    19. Re:200 light years by mdielmann · · Score: 1

      There are other issues, as well. Some energy/particle bursts are directed by the magnetic field of the star going supernova. This means they may eject more particles in one direction than another. If you happen to be in the high-density "beam" from that supernova, the range can be much farther. Think gun vs. firecracker.

      --
      Sure I'm paranoid, but am I paranoid enough?
    20. Re:200 light years by NoOneInParticular · · Score: 1

      Would the explosion that is near enough to cause serious damage (as in, killing most people) be visible by observers BEFORE gamma and x rays do any visible damage?

      No, gamma and x rays are a form of electro-magnetic radiation and travel at the speed of light. This is not something Bruce Willis can solve for us, it would be more like: huh? And we're gone.

    21. Re:200 light years by 4D6963 · · Score: 1

      Further reading of this article says apparently in 1998 we were hit by gamma/x rays from supernova explosion 600 LY years away. So there definitely is a danger zone up to where? 300 LY?

      To use a bad car analogy that's like saying "some guy got killed in a 70 mph car accident but another got in a car accident at only 50 mph and lived so there must be a death limit around 60 mph".

      --
      You just got troll'd!
  14. Don't throw out your textbooks yet by flaming+error · · Score: 1, Insightful
    FTA:

    the scientists have identified a star potentially close to explosion, whose mass was estimated to be equal to 50-100 Suns. Their observations revealed that while a small part of the star's mass was "flung off" in the explosion, most of the material, according to Gal-Yam, was "drawn into the collapsing core as its gravitational pull mounted." In subsequent images taken of that region of the sky, the star does seem to have disappeared, which led the astronomers to conclude that it has, indeed, become a black hole.

    The explosion of such an 'immature' star has led scientists to put existing theories of stellar evolution to doubt - "This might mean that we are fundamentally wrong about the evolution of massive stars, and that theories need revising," said Gal-Yam

    How did they figure out the star's age? Without a link to the original research, this article just sounds like one picture where a bright dot is there, and another picture where they can't see it anymore. If that's all we've got, I don't see why we need to rewrite solar physics.

    1. Re:Don't throw out your textbooks yet by WalksOnDirt · · Score: 2, Informative

      Stars that massive lose mass rapidly. If this star was as old as theory said it should be it couldn't be as massive as the explosion showed it to be. Oops!

      Or something like that, I think.

      --
      a,e,i,o,u and sometimes w and y (at be if of up cwm by)
    2. Re:Don't throw out your textbooks yet by Fallen+Seraph · · Score: 5, Informative

      You determine the age of a star based on several factors, but it's primarily based on the ratio of elements within the star. The life of a star is a continual struggle between the force of gravity, pulling the star inward, and the force of the fusion process taking place within the star, pushing it outward. As the fusion process continues, the hydrogen is fused into progressively heavier elements up until the point where it reaches iron. Fusing iron creates no net gain in energy, as the fusion process for iron requires more energy than is generated. By measuring the spectrum of a star, the stellar mass, ratio of elements, and other characteristics can be observed, which, coupled with existing data about stellar life cycles, and stellar classifications, can be used to determine the star's lifespan. Figuring out the lifespan of a star isn't new science, the trick here is that they believe their prior models of stellar evolution and stellar lifecycles may be incorrect. And if you actually read the article, you would understand as much because they say it in plain English toward the end.

    3. Re:Don't throw out your textbooks yet by electrosoccertux · · Score: 1

      Stellar explanation sir, capital!

    4. Re:Don't throw out your textbooks yet by jaavaaguru · · Score: 1

      50-100 Suns

      How many libraries of congress is that? Give it to me in real units!

    5. Re:Don't throw out your textbooks yet by pcolaman · · Score: 1

      How did they figure out the star's age? Without a link to the original research, this article just sounds like one picture where a bright dot is there, and another picture where they can't see it anymore. If that's all we've got, I don't see why we need to rewrite solar physics.

      Night janitor cleaned the lenses.

    6. Re:Don't throw out your textbooks yet by rcamans · · Score: 2, Informative

      Stellar elements ratios involve the unknown starting ratios. We assume that a star of a given age had predecessor stars of a particular generation, with their elements ratios that they gave up in gas clouds that the star of interest was formed out of. One of the obvious mistakes in the current theory of stellar composition is that fusion stops at Iron. Yes, elements above Iron take more energy than they produce, but that just means that they are a negative contributor to the overall energy state of the star, not that they do not fuse. They will not be formed in high percentages, but they will be formed. So the theory of elements ratios needs to be re-calculated to get what is formed past Iron, and how much Iron, etc is used up in the process. A purely statistical calculation. This is just one example of poor logical thought processes in scientists, acting like the negative energy production is some kind of law that enforces production rules. All our current earthly fusion attempts are negative energy producing. This does not mean that they do not fuse, it just means that they do not fuse a lot, or self-sustaining mode. The post Iron fuse process is not self-sustaining, but it does not have to be, as there is a lot of energy locally available to power it. This does have a significant effect on the core of a star, due to its makeup of heavier, denser elements than Iron, as well as Iron. Where do you think the Uranium, etc in the earth came from? Astronomers assume it all is formed in the novas and supernovas, but some of it comes earlier. It is not an energy contributor to novas and supernovas, either, but they do not say it cannot happen then because of that.
      Another relevant mistake is that the stellar precursor gas is of uniform composition. In reality, it can be from more than one generation of star. One reason for this is that bigger stars live much shorter lives, so that parts of a star forming cloud can be contaminated by stars formed out of it which have then supernovaâ(TM)d contributing more gas to it to form stars which are actually mixed generation stars. This must have occurred for every generation of stars except the first big stars. But, more importantly, different sizes of predecessor stars end up producing gas of different compositions for starting new stars.
      Also, the stellar life cycle theories do not explain what happens to Lithium. Lithium is formed early on in stellar fusion, and is not found nearly as much in old stars as is expected. One period where stellar evolution is not currently understood, and where the Lithium actually disappears, is when the young star blows off its surrounding gas cloud, making it visible for the first time in its life. My theory? That in-falling matter finally hits the young, Lithium-rich star with enough energy to set off a self-sustaining Lithium fusion explosion on the star's surface. this shock wave not only propagates through the star, fusing most of the Lithium in the star, and using it up, it also blasts the obscuring gas cloud away from the star, ending the growth phase of the star, and revealing it to the universe. Kind of like the star comes out of the womb.
      As long as we do not have a clear, well-understood total life cycle of a star, we will continue to have issues with stellar composition, and stellar age calculations from stellar composition, and age-related events in the stellar lifetime, like the end event nova/supernova. We currently do not even understand the Oxygen levels in our own sun right now, and theory calculates a level way off from what it appears to be. We have to get this stuff down to an accuracy of better than a factor of two to be calling out stuff like novas with an accuracy of better than a factor of two. And since Lithium and Oxygen do not calculate out to within a factor of two right now, we should not be stating things without including an uncertainty figure, which Phd scientists tenured at universities are loath to do. They tend to make statements as if they were fact, making them feel like big, knowledgeable men, when

      --
      wake up and hold your nose
    7. Re:Don't throw out your textbooks yet by Anonymous Coward · · Score: 0

      Yup, news reports are often inaccurate and tend towards hyperbole. The actual article spells it all out much better.

  15. Too early? by Anonymous Coward · · Score: 0

    This thing exploded earlier than expected? Perhaps we should start underestimating the life of our own star.

    1. Re:Too early? by click2005 · · Score: 1

      This thing exploded earlier than expected? Perhaps we should start underestimating the life of our own star.

      Its not as bad as it sounds. They were expecting it to blow on May 2nd.

      --
      I am a free slashdotter. I will not be modded, blogged, DRM'd, patented, podcasted or RFID'd. My life is my own.
  16. Well, that clinches it by Anonymous Coward · · Score: 0

    Yep, Proof of Alien life right there.

    And by alien life, I mean Pierson's Puppeteers

  17. who knows? by recharged95 · · Score: 1
    Maybe some alien race discovered nuclear fusion and for some reason tested a bomb 4x the size of the Tsar bomb that likely produced a yield of 100x Earth's version (5000MT). That would be a big "oops". Heck, this could prove not all alien races are intelligent (from a perspective).

    .

    .

    .

    Take that, science.

    1. Re:who knows? by Korin43 · · Score: 1

      Too bad we wouldn't even be able to see the tiny explosion from here.

    2. Re:who knows? by Cyberax · · Score: 1

      Tsar Bomb is tiny.

      I mean _really_ tiny. It has yield of 2*10^17 joules and power of about 5.4*10^24 watts. That's about 1% of the normal Sun's energy output.

      Supernovae produce about 1*10^44 Joules of energy during several minutes. So Tsar Bomba has the power of about 0.000000000000000000000001% Supernova.

    3. Re:who knows? by TheSHAD0W · · Score: 2, Interesting

      Perhaps, if they'd managed to convert their entire planet to energy, it would approach the energy of a supernova.

      Heh. Just as I said that, I figured I could calculate it; or rather, Google could...

      http://www.google.com/search?hl=en&safe=off&q=(mass+of+the+earth)+*+(speed+of+light+squared)+in+joules&btnG=Search

      (Assuming the aliens' planet was roughly the size of ours.) Not even, not by 2 orders of magnitude.

  18. You know... by FlyingSquidStudios · · Score: 4, Funny

    It would really suck if a massive gamma ray burst from that supernova screwed up the rest of this pou3u7IU89&&bu*8389*(&Y(*(¥¥90øioiuuy

    1. Re:You know... by TheSHAD0W · · Score: 1

      Don't panic folks, that wasn't a gamma ray burst; it was his cat expressing her opinion of his joke.

  19. LHC? by shutdown+-p+now · · Score: 5, Funny

    Apparently, they've fixed their LHC.

  20. Uh huh... by djupedal · · Score: 3, Funny

    > '...Baffles Scientists'

    And we all know just how difficult that can be to accomplish these days.

    1. Re:Uh huh... by Ceriel+Nosforit · · Score: 2, Insightful

      The good thing is, it's hard to ignore an exploding star. You can't just write it off as an anomaly, within acceptable standard deviations, or a measurement error.

      There still exists a great number of well-known anomalies which occur in for example electronics design, and yet we seem to think we know all there is to know about EM. The memristor is the latest instance of an 'anomaly' being transformed into what promises to be revolutionary technology. Yet, heaven forbid anybody but a select few favourite names rock the boat, proposing something new. If you think you're on to something exciting, you don't quite understand it but you do dare open your mouth about it, you'll be labelled a crank or worse ignored faster than Occam's razor is invoked on Slashdot.

      --
      All rites reversed 2010
    2. Re:Uh huh... by Anonymous Coward · · Score: 0

      As a scientist, I'm not sure what you're trying to say.

  21. Ruh-roh! by Unmanifest · · Score: 5, Funny
    "...exploded as a supernova at a much earlier date than the one predicted by astronomers."

    (eying the sun nervously)...

    1. Re:Ruh-roh! by lupine_stalker · · Score: 3, Funny

      Clearly our sun could collapse at any time. We should not wait until a potentially hostile star right on our doorsteps decides to attack!

      I call for a premeptive strike to be made on the sun!

      --
      Ninjas use italics.
    2. Re:Ruh-roh! by rrohbeck · · Score: 1

      Just aim the quark-gluon plasma at the sun once the LHC runs with lead atoms.

    3. Re:Ruh-roh! by foo1752 · · Score: 1

      (eying the sun nervously)...

      Do not look directly at the sun with remaining eye!

    4. Re:Ruh-roh! by Anonymous Coward · · Score: 0

      (eying the sun nervously)...

      Do not be alarmed. This was only a test of supernova theory. Please carry on with your remaining eye.

    5. Re:Ruh-roh! by Taibhsear · · Score: 1

      Caution: Do not look at sun with remaining eye.

    6. Re:Ruh-roh! by Taibhsear · · Score: 1

      Doh! Someone beat me to the meme. (commits seppeku with geek card)

    7. Re:Ruh-roh! by rts008 · · Score: 1

      Yes!
      I suggest bombardment with politicians for the first strike.

      With all of their hot-air spewing, running around like beheaded chickens, the denseness of their skulls, so full of shite, etc...Now that's an infusion that could keep the sun going for a loooong time.

      If that turns out to be not enough, then we start with RIAA lawyers. That should do the trick!

      --
      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
    8. Re:Ruh-roh! by Anonymous Coward · · Score: 0

      (eying the sun nervously)...

      Well at least if the Sun explodes, you won't see it happen.

  22. Many possibilities. by jd · · Score: 5, Insightful

    One is that this was a binary system, that a second star was behind the first at the time of the "pre-supernova" photo, and that they collided. Remember, they have very few photographs, are not using any data from space telescopes like SWIFT, and are therefore filling in the blanks.

    We can assume that star evolution is moderately well-understood (though not completely), so if what they think is the input is inconsistent with what they know is the output, the chances are really good that the input is wrong, especially with such little data.

    Another possibility. In order to get a supernova, as TFA notes, you need iron at the core of the star. There is no requirement that the iron be formed by the star, so there is no requirement that the star be at a stage in its evolution to have formed said iron. I don't know how large a rocky planet can get, but it's entirely possible to theorize of a bloody massive exoplanet made largely of iron dive-bombing a star. Depending on how close to critical the star is, it's possible to imagine such a strike giving a supermassive star severe indigestion.

    There again, they may have miscalculated the distance. I believe they rely on spectral analysis to determine the relative velocity of a star and use that to infer distance, as you can't use parallax at those kinds of distances. However, if the star was getting close to critical, the spectral patterns can't necessarily be assumed to follow those of stars in better health. Further, if the star's movement was not primarily due to the expansion of space, the measured Doppler shift won't be directionally proportional to distance.

    These reasons have probably been gone through and either discarded, laughed at, or even maybe put in the "improbable but should be looked at" pile, but it's very reasonable to assume the astronomers themselves have come up with many, many more possibilities, all of which could be valid based on what little is known.

    And that's just it. Very little is known, unless one of the rapid-reaction space telescopes detected the explosion and took a look. TFA makes no mention of such data, but given the volume they process maybe that information hasn't been looked at yet. But I suspect the mystery won't be solvable unless such extra data does exist.

    --
    It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    1. Re:Many possibilities. by Anonymous Coward · · Score: 0

      200 million years ago in a galaxy far, far away...

      Now witness the firepower of this fully ARMED and OPERATIONAL battle station!

    2. Re:Many possibilities. by AstroWeenie · · Score: 5, Informative

      Sorry, but most of your ideas are far off base.

      One is that this was a binary system, that a second star was behind the first at the time of the "pre-supernova" photo, and that they collided. Remember, they have very few photographs, are not using any data from space telescopes like SWIFT, and are therefore filling in the blanks.

      Not correct -- they used both historical Hubble data to detect the star before it exploded and followup Hubble observations to confirm that the star has now disappeared. And they have data from the Keck Observatory with observations of the supernova. That's about as good as it gets for data.

      We can assume that star evolution is moderately well-understood (though not completely), so if what they think is the input is inconsistent with what they know is the output, the chances are really good that the input is wrong, especially with such little data.

      Star evolution is well understood for the bulk of the lifetimes of stars like the Sun, but there are still many questions about this sort of massive star. Such stars lose most of their mass during their lifetimes through stellar winds, which are themselves very complicated and not that well understood theoretically. And then the stars go through this luminous blue variable stage (which is what this star was before it blew up), and that is very poorly understood and is the subject of a lot of current work.

      So it is in fact much more likely that this has uncovered a part of late stellar evolution of massive, luminous stars that is not correctly described by current models. We don't need any really bizarre explanation like iron planets falling into the middle of the stars. (And that wouldn't work anyway -- the planet would have to have a mass bigger than the Sun to have a big effect.)

    3. Re:Many possibilities. by pjtp · · Score: 1

      ...a bloody massive exoplanet made largely of iron dive-bombing a star.

      My friend, I think we have the beginnings of a Hollywood movie here!

    4. Re:Many possibilities. by Cyberax · · Score: 1

      200 millions of light-years is too small for significant Hubble effects.

      Spectral patterns are not really affected by the star being close to collapse, since we only see its outer envelope which consists of fairly normal plasma.

    5. Re:Many possibilities. by numbski · · Score: 1

      "That was too close."

      --

      Karma: Chameleon (mostly due to the fact that you come and go).

    6. Re:Many possibilities. by Anonymous Coward · · Score: 0

      We can assume that star evolution is moderately well-understood (though not completely),

      Why? We have no ability to do ground truth, almost no testable timing related hypothesis' and no ability yet to observe even a relatively tiny fraction of even a single stellar lifecycle. Stellar evolution, in fact anything on astronomical time scales, is all up for grabs. While astronomers have made some fiendishly clever deductions and created some elegant theories that's not the same as direct evidence. Apart from anything else they're not even completely sure some physics constants are in fact constant over appreciable fractions of the universe.

    7. Re:Many possibilities. by jd · · Score: 1

      If Hollywood would take scripts from Slashdotters, (a) movies would be a whole lot more entertaining, and (b) Hollywood would go broke. Of these, I can see definite advantages to (b).

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    8. Re:Many possibilities. by jd · · Score: 1

      That's a part I'm not completely sure about. (See hundred-mile pipe organ story, holes in the sun's corona story, and in fact any other story on recent observations of the sun.) The sun is absolutely tame, as uncontrolled fusion reactors go, but the outer layers have generally been totally bizarre.

      Is it the distance that obscures such bizareness in these sorts of stars (as we can assume that anything the sun can do, other stars can do better) or is it that when you get supermassive stars, these sorts of things don't happen anyway (far too conservative, only yuppie stars go in for that sort of ruckus)?

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    9. Re:Many possibilities. by jd · · Score: 1

      Hey, I seem to remember noting that they were almost certainly off-base. :) Besides, this is Slashdot, so being off-base is normal. With grits.

      Oh, you're probably right about it being some oddity in this stage in the lifecycle. And, yes, the solar winds are not completely understood (although, if I'm right, our sun's heliopause was about where it was expected and the Pioneer/Voyager data doesn't show up any amazing oddities that I've heard of).

      Oh, and if I recall correctly, the largest known exoplanet is 16 solar masses, so although it's fantastically unlikely (and as I recall only gets used as a plot device in a Fred Hoyle novel) and utterly absurd even to picture it, I'm going to have to nyah! your "wouldn't work". Besides, how's it any worse than "Pulsars are Little Green Men", which was indeed a very reputable theory at one point. :)

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    10. Re:Many possibilities. by jd · · Score: 1

      That's what THEY say. You'll notice that everything in your list requires a huge grant cheque and fantastically large and sophisticated observatories. (A dozen or so of the 1 Km Square Array - in space, since some frequencies you need don't travel through the atmosphere - should be sufficient.)

      Follow the money and the Tin Hats!

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    11. Re:Many possibilities. by khallow · · Score: 1
      Still could be a contact binary system.

      So it is in fact much more likely that this has uncovered a part of late stellar evolution of massive, luminous stars that is not correctly described by current models. We don't need any really bizarre explanation like iron planets falling into the middle of the stars. (And that wouldn't work anyway -- the planet would have to have a mass bigger than the Sun to have a big effect.)

      I like this too.

    12. Re:Many possibilities. by Anonymous Coward · · Score: 0

      "the planet would have to have a mass bigger than the Sun to have a big effect."

      You mean something with the mass of a white dwarf or neutron star? What would happen if you drove a neutron star or a sizable white dwarf into the core of a luminous blue variable?

    13. Re:Many possibilities. by AstroWeenie · · Score: 1

      Oh, and if I recall correctly, the largest known exoplanet is 16 solar masses

      Ah, that would be 16 *Jupiter* masses. Since Jupiter is about 1/1000 the mass of the sun, 16 Jupiter masses is only 1.6% of a solar mass. You would get a nice little bang if that fell into a 50 solar mass star, but it wouldn't have much long term effect.

      The dividing line between planets and brown dwarfs is about 15 Jupiter masses. Above that mass what you have is a star (because it has nuclear reactions involving deuterium that generate energy in the center).

    14. Re:Many possibilities. by Anonymous Coward · · Score: 0

      Not to pile on, but a few more ideas that are off base in addition to what has already been mentioned:

      The distance was from the distance to the host galaxy of the star, which can be found with a few different techniques. The galaxy and star are much too close for any kind of Doppler/Hubble technique to be useful. Its very unlikely that they significantly messed up the distance to the host galaxy.

      They are using extensive data from space telescopes in the form of Hubble. SWIFT is not particularily useful for addressing most of your ideas due to its relatively poor angular resolution. In any case, they have observations from relatively soon after the supernova (beginning at least 8 days later I believe).

      Its possible to have supernovae without iron in the stars (Type Ia). Also, iron exoplanets are completely implausible. The amount of Iron in a typical core collapse supernova exceeds the mass of the Sun and there is just no way you are going to do that with a planet. Not to mention that I dont think that just dropping a bunch of iron onto a star is going to cause it to go supernova in any case.

    15. Re:Many possibilities. by dna_(c)(tm)(r) · · Score: 1

      You, the driver, would burn?

    16. Re:Many possibilities. by dna_(c)(tm)(r) · · Score: 1

      Nah, in Hollywood a car colliding with a tree is enough to cause a supernovae.

    17. Re:Many possibilities. by Anonymous Coward · · Score: 0

      We can assume that star evolution is moderately well-understood...

      Don't know about anyone else, but I think I should have stopped reading at this point.

      This reminds me of a paper in my field of bio-chemical simulation, where the author said the primary way systems are determined to be simulatable with a given model is to assert that this model describes the system. (Basically, to say, 'yeah, this should work.')

    18. Re:Many possibilities. by The+End+Of+Days · · Score: 1

      (a) movies would be a whole lot more entertaining

      I suspect such movies would be nothing more than jokes someone else already made, that weren't really funny the first time anyway. They may be entertaining to somebody, but not people I'd want to invite to my parties.

    19. Re:Many possibilities. by jd · · Score: 1

      Correction notes. Diff applied. Will go into JD's Brain 2.6.30.1. :) (Seriously, one of the great things with Slashdot is that errors do get corrected quickly and learning is far more interesting.)

      --
      It's a small world and it smells funny; I'd buy another if it wasn't for the money; Take back what I paid (SoM)
    20. Re:Many possibilities. by Xenophon+Fenderson, · · Score: 1

      And then the stars go through this luminous blue variable stage

      Luminous blue variables are we, not this crude matter!

      --
      I'm proud of my Northern Tibetian Heritage
    21. Re:Many possibilities. by rts008 · · Score: 1

      I don't know how large a rocky planet can get, but it's entirely possible to theorize of a bloody massive exoplanet made largely of iron dive-bombing a star.

      Has something like this been modeled, or predicted? (IANAP, but astrophysics has always been one of my interests)

      I have tried imagining how that would actually work out, but get overwhelmed trying to research that.

      Would it ever actually make contact with the star? I can picture it getting close, then vaporized...but then what?
      Does the 'gas cloud'(that used to be the planet) get pulled in the rest of the way, or does it get pushed out from the expansion?

      If the planet actually makes it to the star's surface, does it just get swallowed? If so, is there a forceful displacement of equivalent star mass? Or does it just swallow it and 'burp' some mass? Or...

      Too many questions without answers(I can find) for me to grasp this.

      Any answers or links that would help enlighten me here would be appreciated!

      --
      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
    22. Re:Many possibilities. by lavardo · · Score: 0

      it was 200,000,000 close

  23. Alien cold war by Patch86 · · Score: 1

    I'm totally calling it.

    1. Re:Alien cold war by Limburgher · · Score: 1

      Um, wouldn't this sort of thing make it a hot war? Like what would have happened if the USA and USSR had actually lobbed nuked hither and yon?

      --

      You are not the customer.

    2. Re:Alien cold war by Patch86 · · Score: 1

      Good point well made.

  24. Everybody stay calm... by allcoolnameswheretak · · Score: 4, Funny

    ...it's just some omnipontent aliens, building an interstellar highway. Nothing to see here... move along, and don't forget your towel.

    1. Re:Everybody stay calm... by Anonymous Coward · · Score: 0

      I, for one, welcome our omnipotent, interstellar highway building, alien overlords.

    2. Re:Everybody stay calm... by Sp*rH*wk · · Score: 1

      I'd like to welcome our hyperspace highway building alien overlords ...

    3. Re:Everybody stay calm... by Chris+Burke · · Score: 1

      Nothing to see here... move along, and don't forget your towel.

      Man, you hitchhikers always talk about your fucking towels and how important and awesome they are... Which as far as I can figure is just to draw our attentions away from your damn electronic thumb devices that'll actually get you off the damn rock when the Vogons come to blow it up. I don't see how a towel can save you from the destruction of a planet, unless you offer it in trade for a ride with a very moist species of alien.

      --

      The enemies of Democracy are
    4. Re:Everybody stay calm... by MichaelSmith · · Score: 1

      Your towel is a vital store of emergency nutrients.

  25. I'm calling interference. by E.+Edward+Grey · · Score: 1

    A large gravitational force passing by this star might have a significant effect. The fact that only part of this star completely collapsed seems like possible evidence of ... a moving black hole?

    --

    ---don't make me break out my red pen.

  26. Gratuitous Battlestar comment by Anonymous Coward · · Score: 0

    Those pesky Cylons are up to it again!

  27. Re:Something else that's huge by Anonymous Coward · · Score: 0

    Yeah, that is big back hole.

  28. Easily explained by Anonymous Coward · · Score: 0

    Someone dropped a stargate into it.

  29. Whodunit? by SirLoadALot · · Score: 3, Funny

    The next Slashdot poll should ask which alien race is responsible for this. I'm voting for the CowboyNealiens.

    1. Re:Whodunit? by rcamans · · Score: 1

      You are mistakenly assuming that the CowboyNealiens are technologically advanced, which would mean intellectually advanced. Look around her. Certainly no sign of that. This is Slashdot, the bottom of the intellectual heap. and CowboyNeal lives here.
      What were you thinking?

      --
      wake up and hold your nose
  30. The Messiah has returned! by erroneus · · Score: 3, Funny

    You science people have completely missed the mark. The Messiah has come to end the world and take the faithful home!

    1. Re:The Messiah has returned! by Anonymous Coward · · Score: 0

      To catch the next comet, please suicide now!

    2. Re:The Messiah has returned! by Anonymous Coward · · Score: 0

      O man have you got it all wrong.

      When when the Lord comes riding in on his bright light from space your going to hear him way before you see him. That's whats so cool about God!!!

      Wait i hear him now...

    3. Re:The Messiah has returned! by huiwe · · Score: 1

      Again

    4. Re:The Messiah has returned! by rts008 · · Score: 1

      The Messiah has come to end the world and take the faithful home!

      All I have to say to them is:don't let the door hit you on the ass on the way out! Hurry up!

      --
      Down With Slashdot BETA!!! I've been around the corner and seen the oliphant; you can only abuse me from your perspecti
  31. Why is this a surprise? by WCMI92 · · Score: 2, Insightful

    Luminous Blue Variables (like Eta Carine) are so massive and so bright that gravity can barely hold them together. Should it be such a shock that such a star might blow itself apart given their inherent instability.

    --
    Corporatism != Free Market
    1. Re:Why is this a surprise? by IndustrialComplex · · Score: 1

      Luminous Blue Variables (like Eta Carine) are so massive and so bright that gravity can barely hold them together. Should it be such a shock that such a star might blow itself apart given their inherent instability.

      The stars likely shed a good deal of their mass to their solar wind, but there are several orders of magnitude between fusion bursts and supernovae. Kind of like the difference between 100 lbs of black powder and 100 lbs of TNT... actually its probably more like 100lbs of nuclear bomb.

      --
      Out of modpoints but really liked a post? 1BDkF6TtmmeZ3yqXbz9yhdYVqRYnwFoXDj
    2. Re:Why is this a surprise? by Anonymous Coward · · Score: 0

      Get the fuck out of here with your reasonableness, we've got science stories to write!

  32. there goes another civilization with a Hadron size by Locutus · · Score: 1

    there goes another civilization with a Hadron sized super collider. Just when they thought they were on the edge of something, they collapsed into something much much much much much much smaller. ;-0

    LoB

    --
    "Anyone who stands out in the middle of a road looks like roadkill to me." --Linus
  33. original Hubble press release by AstroWeenie · · Score: 5, Informative

    Here's the Hubble press release and the paper.

  34. Re:there goes another civilization with a Hadron s by Mister_Stoopid · · Score: 1

    That's such a shame. We could have learned a lot from a civilization advanced enough to build a super collider the size of a Hadron.

  35. VERY OLD NEWS!!!! by gsgriffin · · Score: 1

    'Happened earlier than expected' Duh! This star died about 200 million years ago.

    --
    jsut athnoer menagiensls ltitle psrhae for you to dcoede. Why do we wtsae our tmie dnoig tihs?
  36. Re:there goes another civilization with a Hadron s by NewbieProgrammerMan · · Score: 1

    there goes another civilization with a Hadron sized super collider.

    Wow, talk about miniaturization!

    --
    [b.belong('us') for b in bases if b.owner() == 'you']
  37. Dr Manhattan strikes again! by SigmaTao · · Score: 1

    U.S. Federal agencies have requested Dr Manhattan to assist them in their enquiries regarding the supernova incident, after anomalies were detected on Mars....

  38. My thoughts exactly by mangu · · Score: 5, Insightful

    I'm getting tired these kinds of posts every time something unexpected is observed

    Me too. Those posts show nothing but the envy of people who wished they understood science, but do not have the needed energy and intelligence to study the necessary mathematics.

    Their escape mechanism is to pretend no one really understand science. They think they don't look so stupid if they can pretend everybody is as stupid as they are.

    I think the perfect answer to that kind of thinking was given by Isaac Asimov in an essay named "The Relativity of Wrong". In that article, Asimov shows that the difference between a flat earth and a spherical earth is much bigger than the difference between a spherical earth and the true shape of the earth. Although people who thought the earth was spherical were wrong, they were much *less* wrong than people who thought the earth was flat.

    Science converges asymptotically to the truth. Even if scientists can never be absolutely certain of the truth, they are always getting nearer to absolute truth.

    1. Re:My thoughts exactly by Anonymous Coward · · Score: 0

      Following your logic, you've probably lost those who you complain of by using "asymptotically"...

    2. Re:My thoughts exactly by Roger+W+Moore · · Score: 1

      I think the perfect answer to that kind of thinking was given by Isaac Asimov in an essay named "The Relativity of Wrong" [google.com].

      While I support your point that article is actually not a good example. Since that article was written we have learnt that we don't know what 96% of the Universe is made of. While it is true that normally we asymptotically approach the truth of the matter sometimes we make completely unexpected discoveries that completely change the picture in ways we cannot imagine beforehand. These are the really exciting and educational moments.

    3. Re:My thoughts exactly by iago-vL · · Score: 1, Troll

      Based on the context, even if somebody doesn't know the word, it should still be perfectly cromulent.

    4. Re:My thoughts exactly by mangu · · Score: 2, Interesting

      Since that article was written we have learnt that we don't know what 96% of the Universe is made of.

      And don't you think it's just amazing that scientists can look at stars that are hundreds of millions light years away and, from their measurements alone, they can calculate and conclude that twenty times more matter is needed to account for the way those stars are moving?

      This "dark matter" problem that you mention does not show a weakness, but a *strong* point of science. The existence of dark matter does not invalidate one single fact of what was known before. Newtonian phisics is still valid, relativity is intact, quantum mechanics rules. But now we know of an additional fact that's extremely subtle, very very difficult to measure, and still adds some important facts to our scientific knowledge.

      Asimov was right, we are getting closer to the truth.

    5. Re:My thoughts exactly by Anonymous Coward · · Score: 0

      Proper Popperian science is a quite new thing, after all. The asymptotical convergense might not hold all the time since, if one is using the instrumentalist view of science (for example), models can be overfitted and ultimately wrong explanations be held as the correct ones for extended periods of time, and no, I didn't argue against QM since I'm not a physicist. (Btw, Asimov was a chemist, hence the psychohistory which has the echo of the Brownian motion in it)
      Older and perhaps not very relevant examples of missteps of science could be the caloric theory of heat and cold and the way mental illness was treated. Eugenics and anthropological support for the policy of "cleansing" of natives in the way of the colonies could serve as stark examples of these, also.
      Perhaps a safer way would be to state that science converges ultimately to the truth.

    6. Re:My thoughts exactly by LS · · Score: 1

      A bit of a divergence, but...

      "Science converges asymptotically to the truth. Even if scientists can never be absolutely certain of the truth, they are always getting nearer to absolute truth."

      How can you say that science converges asymptotically to the truth? That implies that you know in advance what the truth is. Why bother with the science in the first place then?

      LS

      --
      There is a fine line between being a cultivated citizen and being someone else's crop. - A. J. Patrick Liszkie
    7. Re:My thoughts exactly by Anonymous Coward · · Score: 0

      your post shows your own shadow, and proves that you are no more intelligent than the people you labeled ("stupid")

    8. Re:My thoughts exactly by Anonymous Coward · · Score: 0

      "Dark matter" is clearly a theoretical construct that may only bear a an indirect or contrary relationship to reality. It could turn out to be a correct prediction, but it also could be a false concept obscuring the truth. Of course the existence of dark matter doesn't invalidate the theories it was derived from, but at some point we may have to throw out the theories that require the existence of dark matter.

    9. Re:My thoughts exactly by mangu · · Score: 1

      How can you say that science converges asymptotically to the truth?

      Read the essay I mentioned. You can say that because corrections to the current theory are smaller than the former corrections.

      Asimov gives a concrete example, he mentions the difference in height when you measure the terrain a certain distance away. In a flat earth that difference should be zero. In a spherical earth that difference should be 8 inches per mile everywhere. In the best known figures when Asimov wrote that article the difference varied from 7.973 to 8.027 inches per mile, depending on which region of earth you are on.

      The difference between zero and eight inches is more than the difference between 7.973 and 8.027.

    10. Re:My thoughts exactly by Rip+Dick · · Score: 1

      I thought it embiggened the sentence quite nicely.

    11. Re:My thoughts exactly by mangu · · Score: 1

      at some point we may have to throw out the theories that require the existence of dark matter.

      It's measured results, not theories, that require the existence of dark matter.

      We have measured the speeds and masses of bodies in orbit around each other, here in our local planetary system. We have measured the speeds and masses of stars in orbit around each other in remote galaxies.

      Those speeds imply that there should exist more mass than the stars we can see. Therefore we conclude that there exists some mass that is not just the visible stars out there.

    12. Re:My thoughts exactly by Anonymous Coward · · Score: 0

      Hard science converges asymptotically to the truth. The rate of convergence is determined by how amenable the field is to framing controlled experiments. There is also a huge difference between a discipline in which an arbitrary amount of trials can be performed on demand and one in which there is a fundamental limitation on the number of trials that can be performed in a given amount of time.

      Soft sciences (by which I mean disciplines in which a proper controlled experiment can't be performed on demand) do not necessarily converge to the truth. Soft sciences have a strong tendency to be dominated by long-standing debates over the interpretation of historical data or the impact of uncontrolled variables. Whenever one side pokes a hole in the other side's case, the other side can always find an alternate explanation that supports their original position.

      Don't fool yourself into thinking you can pin down truth in the world. Logic only provides you with the means to determine the consequences of a set of premises. The premises themselves are malleable and can be bent to whatever purpose one sets them to.

    13. Re:My thoughts exactly by shaitand · · Score: 1

      'This "dark matter" problem that you mention does not show a weakness, but a *strong* point of science. The existence of dark matter does not invalidate one single fact of what was known before. Newtonian phisics is still valid, relativity is intact, quantum mechanics rules. But now we know of an additional fact that's extremely subtle, very very difficult to measure, and still adds some important facts to our scientific knowledge.'

      That or its all invalid and the 20% is merely a symptom of the flaws in our models that becomes significant enough for us to see when applied at a large enough scale.

    14. Re:My thoughts exactly by shaitand · · Score: 1

      'Those speeds imply that there should exist more mass than the stars we can see.'

      Those implications and measurements all rely on foundation theories that may themselves be incorrect. It is quite possible our theories are close enough to seem correct on local phenomenon (with our limited capability to measure and observe them) but are flawed a manner that demonstrates a 20% error when scaled.

      Additionally, our knowledge is based entirely on data gathered in an incredibly short period of time. A great deal of the things we consider scientific fact could be based partially or entirely based on local (in the sense of time) phenomenon.

    15. Re:My thoughts exactly by JLF65 · · Score: 1, Flamebait

      Or we can conclude that the original equations were wrong. Scientists seem loathe to admit that they could possibly be wrong. It's the whole point people are making about this new observation showing how little we know. You can't even admit that you MIGHT be wrong. Scientists invest so much of their career into certain theories that they feel threatened and do anything to preserve their field the way it is. "We aren't wrong about gravity and relativity - it's just that there's all this undetectable matter that influences the results! Yeah! That's the ticket!"

      Now you'll argue with my post and prove I'm right. Sometimes you just gotta admit you're wrong and move on. You and most mainstream scientists just don't get that. At some point, you will - probably when observations get to where you look as stupid as people who refused to believe the Earth wasn't flat.

    16. Re:My thoughts exactly by amRadioHed · · Score: 1

      Scientists aren't really loathe to admit they could be wrong, but it rightly takes a lot of evidence to prove that our current models for something like gravity are wrong when all of the evidence to this point has supported the existing models.

      Realistically everyone knows our understanding of gravity is incomplete since we need to use one model at quantum scales and another one at macroscopic scales, but until someone comes up with a better theory that works everywhere we are stuck with what we got.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    17. Re:My thoughts exactly by dna_(c)(tm)(r) · · Score: 1

      I'm anaspeptic, phrasmotic and compunctious at causing such pericumbobulation. Around 6:30 intoInk and Incapability

    18. Re:My thoughts exactly by findoutmoretoday · · Score: 1

      For me science is more about useful models than asymptotical truth:  For me within the horizon the earth is flat,  passed the horizon the earth is spherical.  Within the atmosphere things fall downwards and not towards gravitational canter of the earth.  I use Newtonian physics and the atomic model of Bohr,  no general relativity and quantum physics as within my horizon things are too slow and too big. 

    19. Re:My thoughts exactly by Tenebrousedge · · Score: 1

      Clearly proving that you know nothing of what you speak.

      There are competing theories to dark matter, notably MOND, which posits that gravity behaves differently on large scales than on local ones. You trolling, arrogant, ignorant asswipe.

      Relativity isn't just an idea that someone thought of that hasn't been tested. It's the groundwork for modern physics, and it has been exactingly tested over the last century. Probably it is the single most tested theory in the history of science. It's not going to be proved wrong, only refined. There are no other interpretations for the vast majority of observed phenomena.

      What you're saying is that scientists must be wrong because their theories don't make sense to you. The universe is not required to make sense, to you or anyone else. Get over it. Or at least take some comfort in your ignorance: not only is understanding these observations beyond yo^H^H^H^H^H^H not your problem, but you don't even have to deal with the *really* weird stuff, like quantum physics.

      "I have no doubt that in reality the future will be vastly more surprising than anything I can imagine. Now my own suspicion is that the Universe is not only queerer than we suppose, but queerer than we can suppose."
      -- J.B.S. Haldane

      --
      Those who advocate genocide deserve every protection afforded by law, and none afforded by common human decency.
    20. Re:My thoughts exactly by LS · · Score: 1

      Sure, within a certain regime of theories about reality, you refine them and approach something that you can call scientific truth, given the current base assumptions and best theories. But as has happened through history, a paradigm shift pulls the rug out of an entire set of theories. People refined celestial theories with the earth at the center of the universe, getting closer to the "truth", then the rug got pulled out from under them. The whole set of all scientific theory can be thought of as a hierarchical structure, with paradigm shifts happening all over the tree. If something near the leaves changes, then only a few theories depending on that need to be modified or replaced. The closer you get to the top, the more everything changes. But also, the more unlikely it is that it will change. Fundamental changes only happen every millennium or so. Excuse the extremity of the following example, but it is only a thought experiment: if it turned out that you lived in a simulation and you awoke to a world with completely different rules, the entire scientific endeavor would be lost and your "truth" no longer.

      Scientific truth is only relative to a set of assumptions and the current state of human knowledge and cannot be called absolute truth, as a change in a major theory will change everything that depends on it and throw off the minor differences that were converging on a supposed truth.

      Now these paradigm shifts might be considered movements towards the truth, but once again, something could be pulled out from underneath that nullifies them.

      --
      There is a fine line between being a cultivated citizen and being someone else's crop. - A. J. Patrick Liszkie
    21. Re:My thoughts exactly by mcgrew · · Score: 1

      Me too. Those posts show nothing but the envy of people who wished they understood science

      I don't think so. I think that they are just pointing out that compared to what we don't know, what we do know is insignificant. And if we indeed knew everything, or even most of everything, science would not be very necessary.

      Everyone lives in primitive times, but few have ever realized just how primitive their times were. Science's usefulness is discovering things we don't know, understanding things we don't understand, and understanding better things we have a partial understanding of.

      Without ignorance there would be no need for science.

      Asimov shows that the difference between a flat earth and a spherical earth is much bigger than the difference between a spherical earth and the true shape of the earth

      2+2=5 is less wrong than 2+2=22.

    22. Re:My thoughts exactly by GMFTatsujin · · Score: 1

      "Now you'll argue with my post and prove I'm right. Sometimes you just gotta admit you're wrong and move on."

      Putting aside the blatant rhetorical error you just reveled in there, you have it all backward anyway. The burden of proof is on YOU prove that the dominant paradigm is actually wrong. That means constructing an argument with observation and experimentation, not blathering screed about the worthiness of your radical thinking.

      If you're invested in the correctness of science, demonstrate your theory. If it holds up, it holds up, and you'll be the next Galileo, or Einstein, or Bohr. If you can't demonstrate it, then you're outside the realm of science and exposed for the rhetorical fraud that observation indicates you are.

    23. Re:My thoughts exactly by Raenex · · Score: 1

      Science converges asymptotically to the truth. Even if scientists can never be absolutely certain of the truth, they are always getting nearer to absolute truth.

      "absolute truth" is a can of philosophical worms. Who even knows if such a thing exists? Even an absolute truth did exist, you can imagine that science might only lead you to a local optimum of truth, and you could be stuck there forever. It's a standard hill climbing problem in search.

    24. Re:My thoughts exactly by Bonobo_Unknown · · Score: 1

      I would have modded you up. Nicely put.

      --
      We don't believe in radical loony monotheistic religions from the middle east -- we're Christians.
  39. Re:Universe explains USA crime problems. by Anonymous Coward · · Score: 0

    modded a troll for calling a spade a spade. I wonder how you would react if you was in my shoes I put in work and did the dirt, that's how I payed my dues Uh, 1-2-3, that's how it be So all the real niggaz step up like the playas that's in back of me

  40. Went off too early? by PPH · · Score: 1

    Damn! I hate it when that happens.

    --
    Have gnu, will travel.
  41. Re:there goes another civilization with a Hadron s by Anonymous Coward · · Score: 0

    linus is a bitch and you're a total fag for quoting him.

  42. Sorricaine-Mtiga object! by DogAlmity · · Score: 1

    Oh Wan-To, you old crazy bastard.

  43. accurate? by ncohafmuta · · Score: 1

    According to the article it exploded in 2005, but if it's 200 million light years away, doesn't than mean the event happened 200 million years ago and we're just seeing the light from it now? ..but I could be way off base here.

    1. Re:accurate? by telomerewhythere · · Score: 0

      Astronomerspeak. They talk about when it happened as when the light of event arrived at earth. And then also say how far away event occurred. I hear it cuts down on all the confusion within the field, Bruce.

  44. Dupe! by Anonymous Coward · · Score: 0

    This was in the papers 200 million years ago, and is just now being heard about on earth? If you're that far behind, you're in for a few surprises with all the stuff that's happened between then and now.

  45. one difference by Trepidity · · Score: 2, Interesting

    Very few scientists in other fields consider economics a legitimate science. In its partial defense, it's studying very complex phenomena--- considerably more complex than understanding the weather, for example, which is itself no cakewalk. On the other hand, economics doesn't seem to really understand that it's dealing with complex dynamical systems, and has been extremely slow to import the tools now standard in all other areas that deal with complex dynamical systems (including weather). Instead they seem to rely mainly on equilibrium assumptions that are unlikely to ever be even approximately true.

    1. Re:one difference by lostmongoose · · Score: 0, Offtopic

      dynamical

      Dynamical? Really? It's bad enough the last president made up shit like this, now we have supposedly intelligent people doing it too?

    2. Re:one difference by Chris+Burke · · Score: 1

      On the other hand, economics doesn't seem to really understand that it's dealing with complex dynamical systems

      Gee, and I thought economics' main problem is that they still assume people and the businesses that are run by them are informed and rational, instead of admitting that what they are studying is a branch of sociology or psychology.

      --

      The enemies of Democracy are
    3. Re:one difference by shaitand · · Score: 1

      On the contrary, real world economics has nothing to do with psychology and too many economists pretend it does. Confidence/Fear affects liquidity and the stock market. The stock market is its own entity with little relation to the real world.

      In the real world liquidity does not create value, it merely breaks the problem up into small pieces and spreads it around quickly enough that the symptoms are delayed. Liquidity will stretch resources further but it has very real and significant limits. Ultimately the economy is still limited to the real tangible, physical and countable assets that the people possess.

    4. Re:one difference by Anonymous Coward · · Score: 0

      Actually everyone knows that economics is a social science. Except for engineering dumbasses, maybe.

    5. Re:one difference by Ihlosi · · Score: 1

      Actually everyone knows that economics is a social science.

      With everyone, you mean "everyone who adheres to the Austrian School"?

    6. Re:one difference by Chris+Burke · · Score: 1

      Knowing it's a social science is not the same as letting go of the assumption that the actors in the economy are rational. Greenspan even admitted that he failed to see the crisis coming because he had always assumed companies would act rationally in their own best interest. People's opinions of him may vary, but I'm pretty sure he's an economist and not an engineering dumbass, dumbass.

      --

      The enemies of Democracy are
    7. Re:one difference by srussia · · Score: 2, Informative

      dynamical

      Dynamical? Really? It's bad enough the last president made up shit like this, now we have supposedly intelligent people doing it too?

      Yes really.

      http://en.wikipedia.org/wiki/Dynamical_system

      --
      Set your phasers on "funky"!
    8. Re:one difference by Anonymous Coward · · Score: 0

      Greenspan didn't see it coming? Give me a break. Lots and lots of people saw this coming. Greenspan kept it away by providing the loose money supply that made the problem worse. When it was clear that was coming to an end, he quit. Now he insists it was all a big coincidence. Bullshit.

    9. Re:one difference by NoOneInParticular · · Score: 1

      Did Greenspan miss the fact that raking in a couple of 100 million of dollars in a year will cushion anything that will economically happen afterwards to the individual actor? Or did he figure that actors burning a company in the pursuit of personal wealth are behaving irrationally? And that moron ran the Fed?

  46. most people who've studied science disagree by Trepidity · · Score: 5, Insightful

    Most scientists don't understand science, outside their tiny provincial field; I'm a scientist so I see this all the time. Most have very fairy-tale notions of the scientific method and knowledge production in particular.

    You might want to read up on some of the people (scientists especially) who have taken the time to understand how science works, and written on the philosophy and sociology of science.

    In particular, it is certainly not true that science converges asymptotically to the truth. It oven diverges substantially, sometimes for hundreds of years, before entire fields (like "racial hygiene") are thrown out as failed experiments. We're currently in the middle of a debate over whether string theory should be placed in that dustbin or not, for example.

    1. Re:most people who've studied science disagree by mangu · · Score: 1

      ... and written on the philosophy and sociology of science

      Isaac Asimov was a scientist, he held a PhD in biochemistry, and, in the essay I mentioned, he wrote a bit on the philosophy and sociology of science.

      He starts the article mentioning what someone wrote him "he told me he was majoring in English Literature, but he felt he needed to teach me science".

      I think you need to read that article, you really do, if you think something called "racial hygiene" is a science or ever had any claim to being a science. Let me tell you this: neither Phrenology nor Creationism are sciences, no matter what their proponents claim.

      To be called "science" at least two criteria must be met, it must be verified by experiment, and it must produce results measured quantitatively. A qualitative result is just an extremely poor way of measuring a result. In this respect, string theory doesn't qualify as a science, it has never produced measurable quantitative experiments.

      Once a field of knowledge is mature enough to produce results that can be measured quantitatively by experiment then it has reached the status of a true science, and it will never diverge substantially from what has been learned before. It will converge to the truth. This is what science is about. Quantitative results. Experimental checks.

    2. Re:most people who've studied science disagree by JLF65 · · Score: 1

      So being a scientist made Asimov immune from error? See the problem? You're making Asimov's statement the "infallible truth" when it's just one person's opinion. I didn't notice any PROOF in the article, just some observations that lead to a correlation IN ONE AREA OF SCIENCE. It can't be applied as PROOF to ALL of science.

    3. Re:most people who've studied science disagree by TheTurtlesMoves · · Score: 1

      In this respect, string theory doesn't qualify as a science, it has never produced measurable quantitative experiments.

      The hole black hole thing with the LHC is a *prediction* of string theory. There are others. I'm guessing you don't even ask people from the field.

      Also you must be careful of what you define as science. There are more than a few fields where direct experiment is not possible. Climate models can only be compared to data, but not *experimental data*. There is a big difference. But that doesn't negate it from science. Also a lot of astrophysics fits this category. I mean what experimental evidence is there for black holes?

      My supervisor for my PhD loved doing extra philosophy classes. So I know what parent is getting at. However there are a lot of us who have looked at these aspects too.

      --
      The Grey Goo disaster happened 3 billion years ago. This rock is covered in self replicating machines!
    4. Re:most people who've studied science disagree by IntlHarvester · · Score: 1

      if you think something called "racial hygiene" is a science or ever had any claim to being a science.

      IIRC, "racial hygiene" was a nazi slogan. But "Eugenics" is still very much a science and taught at your local agricultural college. Trepidity is referring to the false utility of "human eugenics" which at one time was accepted.

      --
      Business. Numbers. Money. People. Computer World.
    5. Re:most people who've studied science disagree by Stephen+Ma · · Score: 1
      In particular, it is certainly not true that science converges asymptotically to the truth.

      Well, it depends on your timescale. It might occasionally be necessary to dump things like phlogiston and string theory, as counter evidence comes to light. In the long run, however, this very weeding out is why science tends to debug itself, to converge to better and better explanations of the universe.

    6. Re:most people who've studied science disagree by Eivind+Eklund · · Score: 1
      I'd like to point out that science has only been around for a couple of hundred years, and that what I'd see as modern science has been around for around a hundred.

      Looking at old examples is, in my opinion, fairly useless. The structures used had a number of flaws, flaws that at least for some areas of science now are addressed. This doesn't mean that we should blindly trust claims - but it means that applying old results to predict how things are going now is fraught with danger. We're estimated at doubling data amount/"knowledge" approx every 8 years, which means that approx every 25 years we have an order of magnitude more knowledge. And, in general, any human-related problem at a different order of magnitude - is a different problem. (We also have a large increase in the number of active scientists, and in communication bandwidth.)

      Eivind.

      --
      Doubting the existence of evolution is like doubting the existence of China: It just shows that you're uninformed.
    7. Re:most people who've studied science disagree by Anonymous Coward · · Score: 0

      In particular, it is certainly not true that science converges asymptotically to the truth. It oven diverges substantially, sometimes for hundreds of years, before entire fields (like "racial hygiene") are thrown out as failed experiments. We're currently in the middle of a debate over whether string theory should be placed in that dustbin or not, for example.

      "asymptotically converging" does not imply there can't be setbacks and bumps on the road along the way: all it says is that for any given bump size, there is a point (quite possibly far, far into the future) after which bumps exceeding that size are never encountered again.

      It's debatable whether this is true, of course, but if you don't even know this, I honestly have to doubt your scientific credentials.

    8. Re:most people who've studied science disagree by Anonymous Coward · · Score: 0

      whether string theory should be placed in that dustbin or not

      yes please!

    9. Re:most people who've studied science disagree by Trepidity · · Score: 1

      What sort of timescale? To quote a bit of widely held scientific method, the problem is that that claim is unfalsifiable: any example of a long-held theory that turned out to be wrong, no matter how long it was held, can be rationalized as "well, over a longer timescale, science converges to the truth". The only way to disprove that would be to wait an infinitely long time for science to fail to converge to the truth.

    10. Re:most people who've studied science disagree by Stephen+Ma · · Score: 1
      Mathematically speaking, "convergence" is not the same as the "monotonic convergence" strawman that you raised. A series can converge even if its partial sums jump wildly about (c.f. alternating series).

      We can judge how effectively science converges by the rapid expansion of our capabilities over time. This is good enough for me, as the ultimate questions are almost certainly unanswerable.

  47. I look on the bright side on this by NotSoHeavyD3 · · Score: 1

    If they can go nova sooner that increases the chance I'll live long enough to see Betelguese go super nova and that would be spectacular.

    --
    Did you know 80 to 90% of the moderators on slashdot wouldn't recognize a troll even if one dragged them under a bridge.
    1. Re:I look on the bright side on this by Fallen+Seraph · · Score: 1

      It would indeed be amazing. Might screw with our telecommunications due to it's close proximity but we'd likely avoid the ecosystem destroying gamma ray bursts since Betelgeuse is angled such that the plane of the explosion would not be directed toward us. That being said, it'd likely be as bright, or potentially even brighter than the moon when it explodes, which would be awe inspiring.

  48. The obvious explanation.. by _hAZE_ · · Score: 1

    Colonel Samantha Carter launched a Stargate into a star, causing a sudden change in mass..

    --

    Don Head
    UNIX/Linux Administrator
  49. Re:there goes another civilization with a Hadron s by Locutus · · Score: 0, Flamebait

    LOL! says you, just another ignorant bastard and an AC too.

    LoB

    --
    "Anyone who stands out in the middle of a road looks like roadkill to me." --Linus
  50. First who smelt it... by Anonymous Coward · · Score: 0

    delt it!! obviously, this is just a big fart.

  51. What about the Big Dipper? by sickPooter · · Score: 1

    While exploding stars, or "supernovae," have been previously detected using advanced research satellites

    I witnessed what I thought was the end of Ursa Major about 3 years ago. It was so bright, the sky around it turned blue, and then one of the stars was missing. I never saw a single report about it.

  52. The little green men & women who ...... by jmhowitt · · Score: 1

    ....... use black holes as their transportation method needed another stop in the neighborhood, so they constructed one.

    1. Re:The little green men & women who ...... by mcgrew · · Score: 1

      ....... use black holes as their transportation method

      Romulans may have green blood, but they're not green. And they don't call them "black holes" they call them "artificial singularities".

  53. So that's where it went! by Ihlosi · · Score: 1

    Finally, we know what happened to the elusive Q-36 explosive space modulator! And there was a kaboom, too!

  54. Re:Huge Obama spending spree baffles rational mind by Anonymous Coward · · Score: 0

    dey duk er jubs

  55. See Stephen Baxter... by SteelCat · · Score: 1

    Bloody photino birds!

  56. It's Soran! by L4t3r4lu5 · · Score: 1

    "Now... Tell me all you know about... Trilithium."

    Set shield harmonics to 257.4, folks, and grab that Red Shirt. We'll need him soon.

    --
    Finally had enough. Come see us over at https://soylentnews.org/
    1. Re:It's Soran! by yabos · · Score: 1

      Damn and I thought they killed those Klingon bastards.

  57. You underestimate the antiques. by Anonymous Coward · · Score: 0

    Socrates...

    We have made some progress since then. For once, we know that Earth is round.

    Sorry to put a damper on you, but that's not progress. Sokrates was about 400BC. Pythagoras proclaimed round Earth in the 6th century BC. Aristoteles reasoned in the 4th century BC in "About the heavens" with horizon, with the difference of stellar patterns from North to South, with the shadow of the Earth on lunar eclipses. If you manage to pull even half as much insight from a typical high school graduate (rather than rote "the Earth is round"), you'll be lucky. In the late 3rd century BC, Eratosthenes determined the Earth's circumference by measurements of inclinations, with rather startling accuracy.

    So not much progress here. Particularly not in the area of hubris.

  58. Asgard? by Anonymous Coward · · Score: 0

    Looks like the Asgard saved earth from another Replicator threat by collapsing a sun and trapping the creepy critters in its resulted black hole ...

    That this happend at a time the scientists didn't expect shows how very little we still really know about Out There.

  59. The Aliens are coming! by drb_chimaera · · Score: 1

    Anyone ever read The Fourth Profession by Larry Niven? (It's on the N-Space anthology) that touches on unexpected supernova...

  60. maybe it wasnt natrual by ticktickboom · · Score: 0

    maybe it was some big gun from a very advanced race of star destroying 'people'. and now we are gonna base our knowledge on their test firing?

  61. Whoops, the Wrong Star Exploded by nognsoutie · · Score: 0, Redundant

    I read this 3 days ago here. So, when the theory and the facts disagree, what do we do, class? Yes, that's right. We discard both.

  62. Asimov was not a working scientist by Trepidity · · Score: 2, Interesting

    Asimov may have had a PhD in science, but he did nothing of note in science, spending virtually his entire adult life writing science fiction and popular-science works, and virtually none of it writing peer-reviewed journal articles actually on scientific topics. His writings, unsurprisingly, therefore tend to take the mythologized view of science common in sci-fi and pop-science.

  63. Photino birds by EdibleEchidna · · Score: 1

    I blame the photino birds.

  64. Pair-Imbalance Supernova? by protodevilin · · Score: 1

    That's what this one sounds like. I read about it a while ago in an article I'm ashamed to say I can't locate at the moment. Basically, (stop me if I'm all mixed up here) the theory is that a runaway chain reaction (wholly different from that of the common supernova) begins from within the star, causing it to collapse much faster and well before its predicted life expecatancy. The result is also a much more powerful super/hypernova that is also much brighter. It is believed that such a reaction can occur in any star, regardless of its age (including our sun), and astronomists have identified at least one star located relatively close to our solar system that is in particular danger of undergoing a pair-imbalance hypernova. It is believed that if this were to occur, the explosion would appear brighter than the moon, and may even have kinetic effects on our planetary system.

  65. Project Management by furby076 · · Score: 0, Offtopic

    Get a CS degree. Use your work experience that you had, plus your CS degree to be a project manager. You will make a ton of money and not have to work as hard as the programmers.

    --

    I do not support "The Man". I also do not support your irrational stupidity
  66. Flat Earthers by CustomDesigned · · Score: 1

    The only ancient culture I've read about that thought the earth was flat is early Babylon. Any people that either had ships on a large body of water, or were in contact with people that had ships on a large body of water, knew that the earth was round. You can't see a ship disappearing over the horizon and miss the implication.

    As to Socrates, the Greeks even calculated the size of the earth pretty accurately.

    The legend of people believing in a flat earth came from a work of pseudo-historical fiction by Washington Irving about Christopher Columbus, in which the author takes a lot of creative license.

    Us modern types manage to have a Flat Earth Society despite this.

  67. It's SUPERNOVA! by mcgrew · · Score: 1

    Is it a bird? Is it a plane? No, it's SUPERNOVA! Strange visitor from another galaxy...

  68. The Flat Earth Myth by geoffrobinson · · Score: 2, Interesting

    Somewhere in the last few hundred years, the myth was started that people back in the day thought the Earth was flat. It was designed to make religious people appear ignorant.

    http://www.bede.org.uk/flatearth.htm

    --
    Except for ending slavery, the Nazis, communism, & securing American independence, war has never solved anything.
  69. Re:there goes another civilization with a Hadron s by rcamans · · Score: 1

    Well, at least they found out exactly how much the God particle weighed, just before their hadron collider blew them up. Know-it-alls.

    --
    wake up and hold your nose
  70. Well.... by tekshogun · · Score: 1

    This is just proof that we still know very little about what we have been looking at in the deep sky. We're still trying to figure out how our own planet works and we even have every type of probe, sensor, and satellite known to man pointed at or stuck into the Earth trying to figure it out. What makes anyone think they know anything for sure about the rest of the Universe?

  71. Old news. by UseTheSource · · Score: 0

    This is old news! It happened 200 million years ago, and /. is just reporting it now? Come on, mods, get with it.

    At least it wasn't a dup. :P

    --
    "Ein Volk, ein Reich, ein Führer." -Adolf Hitler
    "We are one Nation, we are one People." -The One 'leader'
  72. Space by aburroughs09 · · Score: 1

    There's clearly much much more than we can even comprehend.

  73. Ponder this. by NetNinja · · Score: 1

    How old will you be if you don't go back to school?

  74. that's a useless claim taken literally, though by Trepidity · · Score: 1

    I assumed he meant something stronger about things on human time scales, roughly that science accumulates truth with relatively minor setbacks. If you take asymptotic convergence literally, then yes you're correct, but it's also a useless statement, because it's possible for science to asymptotically converge to the truth without *any* science in the present day or for the next 5 million years to be true.

    Presumably he didn't mean a statement as weak as, "science will one day converge to the truth, even though it might be the case that all of science that we've ever done is wrong, and all science for the next several million years might also be wrong".

  75. Obviously... by kuzb · · Score: 1

    ...this was the work of a Vogon constructor fleet to make way for a new hyperspace bypass. Can't fall behind schedule after all.

    --
    BeauHD. Worst editor since kdawson.
  76. many baffling things by icepick72 · · Score: 1

    Oh ya submitter well Uranus baffles scientists too!

  77. It was Tolian Soran by ACMENEWSLLC · · Score: 1

    Tolian Soran exploded the star.

    Really, why couldn't this be some alien race blowing it up to partially exterminate an enemy?

  78. yes, but mathematical convergence is too weak by Trepidity · · Score: 1

    If the only claim is that science converges in the limit to truth in the mathematical sense, then the statement is about as good as not saying anything at all about science, since it literally says nothing at all about science's accuracy within the next 5 million years. I assumed the great-grandparent poster was making some sort of claim about the convergence of science towards truth on human timescales.

  79. Not quite by Roger+W+Moore · · Score: 1

    The existence of dark matter does not invalidate one single fact of what was known before.

    Actually it does. You see before this the options of the end of the Universe were always continuous, slowing, expansion, expansion to s fixed size or recollapse. Now we know that all of these are wrong and we will actually have a continuously accelerating expansion.

    Newtonian phisics is still valid

    It is actually very ironic that you chose this because, in fact, one explanation of Dark Matter is to use modified Newtonian dynamics (MOND) on large distance scales. This is becoming increasingly unlikely (the Bullet cluster was almost a shot to its head) but it is still not ruled out.

    Asimov was right, we are getting closer to the truth.

    Yes we are, but that was not entirely what Asimov was saying - he was also claiming that the steps we took towards the truth were getting smaller because we were closer to the destination. My point is that we still have no idea yet how far we have to go. We might be heading in the roughly right direction but sometimes we take baby steps and sometimes we take huge strides. Asimov's point that we are asymptotically approaching the truth is demonstrably wrong.

  80. The earth's not round! by zooblethorpe · · Score: 1

    It's shaped like a burrito!

    This message brought to you by Citizens Against Penguin Evolution...

    Cheers,

    --
    "What in the name of Fats Waller is that?"
    "A four-foot prune."