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Could Betelgeuse Go Boom?

An anonymous reader writes "The answer is No. In space, nobody can hear you scream. However, it might go supernova in the near future, if it hasn't already. I wanna see that, even if it would permanently disfigure Orion. Ka freaking bam!"

35 of 383 comments (clear)

  1. Nova Post! by Anonymous Coward · · Score: 4, Funny

    Boom!

    1. Re:Nova Post! by auLucifer · · Score: 4, Funny

      It was only a very little supernova, also discovered by a very little astronomer

      --
      If I was witty I'd put something funny here but, as it stands, I am not and have just wasted seconds of your life
    2. Re:Nova Post! by beowulfcluster · · Score: 5, Informative

      "Since its rotational axis is not toward the Earth, Betelgeuse's supernova would not cause a gamma ray burst in the direction of Earth large enough to damage its ecosystem even from a relatively close proximity of 520 light years."

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

  2. when it will happen by Anonymous Coward · · Score: 5, Funny

    It's probably gonna blow the next time Lydia yells Betelgeuse 3 times.

  3. Probable cause? by 93+Escort+Wagon · · Score: 5, Funny

    Global warming.

    --
    #DeleteChrome
  4. Wow, Great Summary by Kotoku · · Score: 5, Insightful

    That is one heck of a summary. I really like how a line and a half of text is qualifying as a story these days.

    Is it THAT slow of a news day, or could no one else possibly outdo this clown of a submitter?

    1. Re:Wow, Great Summary by Allicorn · · Score: 4, Insightful

      "Show us your Warcraft main".

      Your case is proven.

      --
      OMG!!! Ponies!!!
    2. Re:Wow, Great Summary by Anonymous Coward · · Score: 4, Interesting

      Furthermore, I think that much of the original geek crowd is gone or mostly in lurk mode.

      How true. Not that it was ever Shangri-La, but Slashdot did once have some interesting and informative discussions on, you know, technical matters.

      So they are doing their best to attract a younger audience.

      And making it another pile of useless shit like Digg or Reddit is precisely the wrong way to do that. A younger audience can be intelligent too, dontchaknow. Competing for the large but well-served market (if you can call it that) of the sort of drooling morons who argue in YouTube comments is ultimately futile.

      Shorter: we can has good geek site again?

    3. Re:Wow, Great Summary by Anonymous Coward · · Score: 5, Interesting

      Furthermore, I think that much of the original geek crowd is gone or mostly in lurk mode. So they are doing their best to attract a younger audience.

      I don't think they're gone, and lurk mode depends on your definition of it. If I'm sitting around with a bunch of geeks talking about non-technical stuff, I don't think that makes it lurk mode so much as everyday conversation. When we have technical discussions on here, the level of discussion isn't the same as a professional journal but it's very impressive for a public forum filled with a diverse technical audience. It's still a common occurrence where I see posts on here that give me insight on an issue that I may never have otherwise come across; there are even fairly profound anecdotes.

      I also tend to guess that people remember the olden days as being better than they were. I think the signal to noise in replies has gone up, but moderation takes care of that. The stories, well, frankly I've been here ten years now and I don't remember a time where people weren't groaning at a lot of the stories. I wasn't as regular of a reader back then, but I certainly remember vitriolic replies to every Katz story I saw.

      A lot of times I see people whine about stories on here, it's seems to be myopic assholes who expect slashdot to cater to exactly their tastes to the detriment of everyone else -- and expect top shelf journalism despite it being free and them making little to no contribution of any type at all. I've seen complaints about technical stories, hard science stories, what I would call soft science interest stories, stories about new products, lots of the stories about nerd or geek culture. There's really very few types of stories that seem to be without complaint; if slashdot went the blameless route, it might have three stories a week and it'd miss a shitload of stuff that's quite interesting if you're a person who's actually curious about the world. If you want to complain about the quality of the actual writing, then I suggest you submit more stories with high quality writing -- this is a user-driven site after all.

    4. Re:Wow, Great Summary by Sir_Lewk · · Score: 4, Informative

      tacky photos, weird fonts and poor layouts

      Don't worry, they're currently hard at work on it.

      http://www.cs.drexel.edu/~jlg95/stuff/shittycode.png

      --
      "linux is just DOS with a UNIX like syntax" -- Galactic Dominator (944134)
    5. Re:Wow, Great Summary by Quothz · · Score: 5, Funny

      That is one heck of a summary. I really like how a line and a half of text is qualifying as a story these days.

      That's what you call your executive summary.

    6. Re:Wow, Great Summary by lxs · · Score: 4, Funny

      Journal pages, friends/foes + geeks =

      OMG! Slashdot is the first antisocial networking site.

  5. Yes by MaskedSlacker · · Score: 5, Informative

    The anonymous reader is wrong. A supernova would be accompanied by a large amount of shockwaves through the star, and a large amount of pressure waves. There would be no sound, in the sense that there would be no neurological interpretations of these phenomena, but they would still happen.

    1. Re:Yes by RsG · · Score: 5, Informative

      Won't matter much.

      First up, let me preface this by saying a supernova happening at six hundred light years is probably no big deal. Probably. However, there is some evidence that gamma ray bursts might be the product of a sufficiently massive star dying and producing a black hole, in which case we could be in trouble if we were struck be such an event at close range.

      But having the bulk of the earth between yourself and such an event would not save you. Remember that we're talking about enough energy here to be detected over intergalactic distances using fairly rudimentary instruments. That much ionizing radiation will cause sufficient damage to the world's surface on the facing side to ensure the deaths of everyone globally.

      However, this presumes that A) GRBs are in fact supernovae emanations, B) Betelgeuse will produce such an event if (when) it dies and C) the energy will be directed at us. There is some support for the idea that long GRBs occur as "jet" effects in two polar opposite directions, which would explain why we don't see them every time a star goes kaput. We need to be in the line of sight. If this were a common occurrence for the earth, it is very likely we would not be here at all.

      --
      Erotic is when you use a feather. Exotic is when you use the whole chicken.
  6. New doomsday scenario? by nesfreak64 · · Score: 5, Interesting

    It's 640 light years away (give or take). Would the neutrinos affect us at all? Is this another doomsday scenario? I would imagine that it'd be hellishly bright in the night sky. What does science say about it? I'm rusty on my astronomy, but it'd be awesome to see.

    1. Re:New doomsday scenario? by RsG · · Score: 5, Informative

      Would the neutrinos affect us at all? Is this another doomsday scenario?

      Please, please tell me this was a joke. Please tell me you actually understood what a neutrino is, and were intentionally posting something absurd.

      In the off-chance you were serious, a neutrino doesn't interact with matter enough to do any damage. This is not a matter of any uncertainty. A single neutrino would have a chance of passing through several light years of solid lead without interacting with a single atom. Neutrinos are sleeting through your body right now from the centre of the sun; they pass through the suns outer layers unimpeded, and if the sun isn't overhead wherever you are right now, then they've also passed through the innards of the earth.

      Neutrinos can't affect us. Or the earth, or much of anything, really.

      --
      Erotic is when you use a feather. Exotic is when you use the whole chicken.
    2. Re:New doomsday scenario? by GrpA · · Score: 4, Funny

      More of note.

      If it's 640 light years away, then it probably went boom 640 years ago.

      Which only makes sense, since after all, 640 years should be enough for anyone.

      GrpA

      --
      Enjoy science fiction? "Turing Evolved" - AI, Mecha, Androids and rail-gun battles. What more could you want?
    3. Re:New doomsday scenario? by Viadd · · Score: 4, Informative

      The neutrinos from a core collapse supernova would be lethal to humans at the distance of Jupiter. Any given neutrino has very little chance of hitting interacting with normal density matter it passes through, but there are a LOT of neutrinos: about 0.05 solar masses of them.

      Furthermore, they are the first things that escape from the core (apart from gravitational waves) since they move at near-lightspeed and have very little chance of interacting with the envelope of the star. The big flashy special effects are driven by the shockwave from the core reaching the surface, and that takes hours. So if you were at the distance of Jupiter, you would have time to die from neutrino effects before the blast hit you.

      Admittedly, Betelgeuse is somewhat further away than Jupiter, and the only neutrino effects are likely to be a lot of very excited astrophysicists. But both Jupiter and Betelgeuse are much closer than 99.9999999999999999999% of the Universe, and much further away than everyone you've ever met, so the distance scales aren't that different.

    4. Re:New doomsday scenario? by radtea · · Score: 5, Interesting

      That's the first I've ever heard of neutrinos being deadly to anything at all. I'm understandably sceptical.

      The neutrino emissions from a supernova would be lethal to humans out to a light year or so. Really. Cross-section is ~10e-40 cm^2, average energy is 1 MeV-ish. You work it out.

      --
      Blasphemy is a human right. Blasphemophobia kills.
    5. Re:New doomsday scenario? by radtea · · Score: 4, Informative

      And how these neutrinos are supposed have an ionizing effect, exactly?

      Charged current interaction, which is one aspect of the weak nuclear force. If you think about it, electrons must feel the week force, otherwise beta decay wouldn't happen.

      Most neutrino detectors use see solar neutrinos this way: Cherenkov light from electrons kicked out by the charged current interaction. (The Sudbury Neutrino Observatory, in contrast, was also sensitive to the neutral current interaction, which is what made it possible to determine that neutrinos have mass.)

      --
      Blasphemy is a human right. Blasphemophobia kills.
  7. Where's the kaboom? by Bieeanda · · Score: 5, Funny

    There was supposed to be an Earth-shattering kaboom!

  8. Re:Aliens better shield us with something.. by MichaelSmith · · Score: 4, Funny

    The yield of such a gamma ray blast might x-ray and bake us pretty nicely, but it might be distant enough, hopefully.

    But there aren't any aliens around. I wonder if they know something we don't? What we need is a ringworld with the rotation axis at 90 degrees to the direction of Betelgeuse.

  9. Re:Aliens better shield us with something.. by MichaelSmith · · Score: 4, Funny

    I just read a story today about a lady who missed the Air France flight that killed everyone on board and then today died in a car wreck.

    Yeah I think Alanis Morissette is working on the song as we speak.

  10. What a show if it does... by jeffb+(2.718) · · Score: 5, Interesting

    ...rippling bands across the ground from atmospheric turbulence, razor-sharp shadows everywhere, with prominent diffraction rings around the ones from faraway objects. And a flaming rainbow streak, blue at the top, shading down through green to red, as it rises or sets in a clear sky.

    If my calculations are right, it won't burn your eyes; it would be roughly equivalent to looking into a 4-microwatt laser, not nearly strong enough to be dangerous. A 10-inch telescope could collimate it into a 5-mW beam, bright enough to see passing through the air, if only it were dark outside. The Palomar reflector would collect closer to 2 watts, enough to start fires and such.

    If it happened this month, most everybody north of the Antarctic Circle would be cruelly cheated. Any time from August through April, though, it should be visible in the night sky from just about anywhere but that same Antarctic. And yes, I'd be willing to drag myself out of bed pre-dawn for this.

  11. Oh no! by lord_mike · · Score: 4, Funny

    I hope this doesn't interfere with the Green Orion Women Slave Trade from Star Trek...

  12. Nearby Supergiant stars by syousef · · Score: 5, Informative

    ...are candidates

    You get a lot of talk about how spectacular Eta Carinae would be if it went up. There's already been a Supernova "imposter" event...
    http://en.wikipedia.org/wiki/Eta_Carinae ..and here's some analysis of whether it's a danger.
    http://stupendous.rit.edu/richmond/answers/snrisks.txt ...or has done so already
    http://cdsweb.cern.ch/record/246576/files/th-6805-93.ps.gz

    --
    These posts express my own personal views, not those of my employer
  13. Re:Aliens better shield us with something.. by Xaoswolf · · Score: 4, Funny

    Well, we better hope it happens during the day when the stars aren't out.

  14. New Sensationalist by Charles+Dodgeson · · Score: 4, Informative

    Somebody ought to go through back issues of the New Sensationalist and look at all of their predictions or reports of great inventions or processes "that will be commercialized in two or three years" to see what their track record is. I wonder if they can live up to the standards set by astrologers.

    --
    Prime numbers are exactly what Alan Greenspan says they are -S. Minsky
  15. This isn't exactly news. by AbsoluteXyro · · Score: 5, Interesting

    We've known for some time now that Betelgeuse is a red supergiant, and we have also known that the red supergiant phase of a star's life only lasts roughly one million years, tops. Being that Betelgeuse is a few million years old, we can deduce that it may be well into it's red supergiant phase, and given that it is 600 light-years away, it is possible that the star has already gone super-nova (type II) and the resulting light from the blast has not yet reached us. Now I understand that the article is saying the star appears to be shrinking, however the star (like any red supergiant) has a history of expanding and contracting. Per the article, it could be any number of things. I really don't think it is anything to get worked up about. Not that sensationalism isn't fun.

  16. Oh no! by ggvaidya · · Score: 4, Funny

    Betelgeuse is awesome and very, very pretty - I'd hate for it to turn into another colour or vanish altogether. Isn't there someone we could petition to stop this?

  17. No Boom Today, Boom Tomorrow by Nom+du+Keyboard · · Score: 4, Interesting

    If it's going to go boom, expect the signs of it to arrive in 2012 to coincide with other endings predicted for that year. And expect this to be a total insult to the Egyptian Pharaohs who seemed to revere that star above just about all else.

    Are we really sure we're far enough away to be safe? I've heard before that a supernova even dozens of lightyears away would be a very bad thing for Earth.

    --
    "It's the height of ridiculousness to say for those 9 lines you get hundreds of millions."
  18. Re:Correction - not a supernova by bnenning · · Score: 4, Funny

    it was just Disaster Area tuning up for their gig tonight 600 years ago

    Please consult Dr. Streetmentioner's reference for the proper use of the Relativistic Simul-Past-Present tense.

    --
    How to solve most of our problems: 1.Lots of nuclear plants. 2.Cure aging.
  19. Re:Insensitive Clod by CptNerd · · Score: 5, Funny

    Oh noes, a lethal grammar ray burst!

    --
    By the taping of my glasses, something geeky this way passes
  20. I don't think the submitter read TFA by kwerle · · Score: 4, Informative

    OK, I read the article. It says that the star has been shrinking and mentions a few hypothesis.

    None of them say anything about nova - super or otherwise.

    Some of the comments on the article do.

    Could we fire the editor? Please?

  21. Re:We should get rid of the AC -1 modifier by networkBoy · · Score: 4, Insightful

    If you get rid of AC you'll get rid of lots of noise, true.
    you'll also get rid of people who post inside info...
    -nB

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