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At Long Last: IceCube Spots 28 High-Energy Neutrinos

Wired reports that IceCube, the detection facility built just to detect such things, has seen just what it was looking for, even though the researchers involved didn't know it at the time. High-energy neutrinos, the target that IceCube was seeking, weren't showing up as had been hoped, but it turns out that there were quite a few (nearly 30 already, with 2013's data still being recorded) in the three years that the detector has been operating — they just weren't obvious until the data was combed for it. "Most of the 28 high-energy neutrinos so far detected originate from parts of the night sky that don’t include the Milky Way, making it quite likely that they are arriving from a distant source. There are still too few neutrinos to make any specific conclusions about AGNs or gamma-ray bursts, but the IceCube team will continue gathering new data."

68 of 109 comments (clear)

  1. Thanks for the link by ackthpt · · Score: 2

    At first I thought these rappers had more on the ball than met the ear.

    Some of the facilities built for detecting particles are pretty fascinating, including one in northern Arizona, where the water is so pure it will corrode a screwdriver to iron oxide within a few days.

    Very cool (no pun intended) observatory. Has it been in James Bond, yet?

    --

    A feeling of having made the same mistake before: Deja Foobar
  2. Psssh by Desler · · Score: 1

    Ive Cube? Pssssh. What has Ice T spotted?

    1. Re:Psssh by dyingtolive · · Score: 1

      Dolph Lundgren and Keanu Reeves.

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      Support the EFF and Creative Commons. The war is coming, and they're supporting you...
  3. Re:Knot jokes by ackthpt · · Score: 2

    Post your knot jokes here.

    I don't knot what you are talking about.

    --

    A feeling of having made the same mistake before: Deja Foobar
  4. Re:Ice cube jokes by Jeremiah+Cornelius · · Score: 2

    THIS IS THE Dopest SHIT,

    Since he split Dr Dre.

    --
    "Flyin' in just a sweet place,
    Never been known to fail..."
  5. Ugh by sexconker · · Score: 5, Insightful

    Is Slashdot powered by Mechanical Turk?

    BAD:

    At Long Last: IceCube Spots 28 High-Energy Neutrinos

    Wired reports that IceCube, the detection facility built just to detect such things, has seen just what it was looking for, even though the researchers involved didn't knot it at the time. High-energy neutrinos, the target that IceCube was seeking, weren't showing up as had been hoped, but it turns out that there were quite a few (nearly 30 already, with 2013's data still being recorded) in the three years that the detector has been operating — they just weren't obvious until the data was combed for it. "Most of the 28 high-energy neutrinos so far detected originate from parts of the night sky that don’t include the Milky Way, making it quite likely that they are arriving from a distant source. There are still too few neutrinos to make any specific conclusions about AGNs or gamma-ray bursts, but the IceCube team will continue gathering new data."

    Good:

    At Least 28 High-Energy Neutrinos Detected by IceCube
    From Wired ( http://www.wired.com/wiredscience/2013/11/icecube-neutrinos-detected/ )

    The high-energy neutrino detector IceCube ( http://icecube.wisc.edu/ ) has detected at least 28 high-energy neutrinos in the past 3 years. Until recently, this number was thought to be zero.

    The quote from an unknown person is useless because it doesn't tell us what high-energy neutrinos are, why they didn't know about the 28 detections until now, or what AGNs are.

    1. Re:Ugh by ackthpt · · Score: 1

      Fortunately, links are provided and we can go off and read. More will undoubtably be in the paper (when published)

      Icecube is pretty neat, too. I've been to a lecture on a similar type observatory, which is used to detect rays, their direction and wavelength which precede visible light of stellar events (such as novae).

      --

      A feeling of having made the same mistake before: Deja Foobar
    2. Re:Ugh by Jane+Q.+Public · · Score: 1

      "The quote from an unknown person is useless because it doesn't tell us what high-energy neutrinos are, why they didn't know about the 28 detections until now, or what AGNs are."

      AGNs? OMFG. Are we going to be inundated with reports about Anthropogenic Global Neutrinos now?

    3. Re:Ugh by oldhack · · Score: 1

      Is Slashdot powered by Mechanical Turk?

      Maybe "timothy" is a Turk, but I don't mean to insult the Turks (mechanical or otherwise).

      Anyways, the neutrinos are likely from distance sources, so no indirect confirmation of dark matter, eh?

      --
      Fuck systemd. Fuck Redhat. Fuck Soylent, too. Wait, scratch the last one.
    4. Re:Ugh by camperdave · · Score: 2
      As this is the only halfway serious post, I'll ask my question here.

      "Most of the 28 high-energy neutrinos so far detected originate from parts of the night sky that don’t include the Milky Way, making it quite likely that they are arriving from a distant source.

      Since neutrinos can pretty much zip through the entire planet unimpeded, they could enter Ice Cube from any angle at any time. So, how do they know which part of the sky the detected neutrinos are coming from?

      --
      When our name is on the back of your car, we're behind you all the way!
    5. Re:Ugh by dmitrygr · · Score: 1

      Same way that you could tell which direction he was coming from if invisible man bumped into you at 100mph... (seriously)

      --
      -------
      1. Enjoy your job
      2. Make lots of money
      3. Work within the law

      Choose any two.
    6. Re:Ugh by Anonymous Coward · · Score: 5, Informative

      The project consists of a huge 3D grid of light detectors in ice, such that when any high energy particle hits something in the ice, it creates a spray of particles, which also creates a spray of photons from Cerenkov radiation. At the basic level, you can think of conservation of momentum meaning most of the spray needs to be going in the direction of the incoming particle. So they can see which way all of the secondary particles are going and tell with pretty good accuracy which way the original particle came from. Really good timing measurements also gives some time of flight info helping pin point the direction. The shape and type of spray of particles really narrows down what type of particle they are seeing, although neutrinos are most obvious when they are coming upward having traveling through the Earth which would block other kinds of cosmic rays.

    7. Re:Ugh by camperdave · · Score: 1

      ...neutrinos are most obvious when they are coming upward having traveling through the Earth which would block other kinds of cosmic rays.

      [Lightbulb]Riiiight![/Lightbulb] I was picturing the Earth blocking the neutrinos, so the directionality of IceCube would be skyward. I never thought of looking at it the other way, with the Earth filtering everything else out and the directionality being downward.

      --
      When our name is on the back of your car, we're behind you all the way!
    8. Re:Ugh by ArsonSmith · · Score: 1

      It was really easy-e, they were Neutrinos With Attitudes.

      --
      Paying taxes to buy civilization is like paying a hooker to buy love.
    9. Re:Ugh by Anonymous Coward · · Score: 1

      IceCube can distinguish neutrinos going in either direction, and resolve directionality in addition to energy by careful modeling of what type of sprays of stuff different particles hitting ice would make. But at the lower energies, it can be difficult to separate neutrinos that are from space and ones that are from cosmic rays hitting the atmosphere. Separating those out is where using the Earth as a filter really helps out. Not so much as a filter actually, but as just a simple spacer when you consider the 1/r^2 difference between the atmosphere right above IceCube and the atmosphere on the opposite side of the Earth, which both generate neutrinos from cosmic ray interactions. But using the Earth as a filter also makes for a nice test of the model stuff too since you know the upward stuff is neutrinos anyway.

    10. Re:Ugh by fatphil · · Score: 1

      Can a snooker ball detect what velocity (and hence direction) the cue ball hit it with?

      --
      Also FatPhil on SoylentNews, id 863
    11. Re:Ugh by marcosdumay · · Score: 1

      A bit more clearly (but yeah, dmitrygr said it all), when a neutrino hits an atom it leaves a trail of light with a nonzero length.

    12. Re:Ugh by camperdave · · Score: 1

      A bit more clearly (but yeah, dmitrygr said it all), when a neutrino hits an atom it leaves a trail of light with a nonzero length.

      A trail of light? I was picturing just a flash of light, a single, pinpoint flash. That's why I was wondering how it could detect direction.

      --
      When our name is on the back of your car, we're behind you all the way!
    13. Re:Ugh by marcosdumay · · Score: 1

      Yep, there is a trail, or (as somebody else already said) more specifically a tree, with all branches nearly parallel.

  6. Re:Knot jokes by Nerdfest · · Score: 1

    This would be a much better article to have the 'rocket' error that was on an earlier article; or, just to be different, NO ERRORS.

  7. Re:Ice cube jokes by bobbied · · Score: 1

    sheepishly....

    Aren't they in the tea?

    --
    "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  8. Re:Knot jokes by bobbied · · Score: 1

    I'm a frayed knot... Said the mixed up rope..

    --
    "File to fit, pound to insert, paint to match" - Aircraft Maintenance 101
  9. Well there you have it... by grub · · Score: 1


    ... undeniable evidence that Earth is 6,000 years old and Noah had baby dinosaurs on the Ark.

    --
    Trolling is a art,
  10. N-ice by cold+fjord · · Score: 4, Interesting

    Nice to see another big science project providing results. The data from all these recent big experiments should be quite helpful in winnowing out some theories. It looks some supersymmetry theories appear inconsistent with the data being seen. Things seem to be resolving towards the standard model, and yet it has problems. Interesting times ahead I'm sure.

    Electron Shape Measurement, Most Precise Yet, Rules Out New Physics Theories
    Observation of micro–macro entanglement of light

    --
    much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot - George Orwell
    1. Re:N-ice by cold+fjord · · Score: 1
      --
      much of left-wing thought is a kind of playing with fire by people who don't even know that fire is hot - George Orwell
    2. Re:N-ice by hawkfish · · Score: 1

      Nice to see another big science project providing results. The data from all these recent big experiments should be quite helpful in winnowing out some theories. It looks some supersymmetry theories appear inconsistent with the data being seen.

      Don't worry, there are plenty more...

      --
      You will not drink with us, but you would taste our steel? - Walter Matthau, The Pirates
  11. Re:Ice cube jokes by Horshu · · Score: 1

    This almost makes up for all those stupid family films he's been making. Well, this plus 21 Jump Street puts him over the top.

  12. Re:Ice cube jokes by mythosaz · · Score: 1

    Is this lab STRAIGHT OUT OF COMPTON?

    Thanks, OP. I appreciate the thread.

  13. Queen and IceCube by __aaqvdr516 · · Score: 1

    I bet Brian May could help Icecube. They should collaborate.

  14. Great news. by goldaryn · · Score: 2

    You'd have thought someone would've thought to check the results?

    Anyway, I bet they're glad; after 3 fruitless years, the project must have been on the rocks.



    YEEEEEEEEEEEEEEEEEAAAAAAAAAAHHHHHH

    1. Re:Great news. by boristhespider · · Score: 2

      Actually, I think it's on the knots

    2. Re:Great news. by Anonymous Coward · · Score: 1

      The project was far from fruitless over the last three years, as it is capable of detecting a wide variety of cosmic rays, and had many results from not so high energy neutrinos. The high energy neutrinos is the new part here

  15. Re:Ice cube jokes by GoodNewsJimDotCom · · Score: 1

    If you want to get high-energy neutrinos, you better straighten out your computations.

  16. Re:Excellent Editors by boristhespider · · Score: 4, Funny

    No it has knot

  17. Re:Knot jokes by JustOK · · Score: 2

    Probably just some string theory conspirator.

    --
    rewriting history since 2109
  18. 28 high-energy neutrinos, great! by ls671 · · Score: 1

    28 high-energy neutrinos, great! Nuclear submarines can now communicate at faster rates than 1 bit/s while deep under water without raising an antenna wire to the surface!

    http://physicsworld.com/cws/article/news/2012/mar/19/neutrino-based-communication-is-a-first

    --
    Everything I write is lies, read between the lines.
  19. Neutrinos With Attitudes by stevegee58 · · Score: 3, Funny

    You are now about to witness the strength of neutrino knowledge

  20. I worked on this a bit by Gherald · · Score: 5, Interesting

    In 2005 I was a sysadmin at the IceCube Neutrino Observatory headquarters in Madison, Wisconsin. Biggest project I worked on was porting RS 485 serial drivers from a legacy unix system to Linux 2.6 and setting up the HP rack servers which we then shipped down to the pole from New Zealand on a C-130 Hercules. Also, I built a data visualization system in python+django which ran over a 1km-long DSL network between the drilling site and the south pole base. Never got to down there myself (my FTE boss did), but it was a fun project for a student and looks good on the resume and all. Did I mention SSH connections over satellite to Antarctica are pretty slow?

    1. Re:I worked on this a bit by volvox_voxel · · Score: 1

      How slow, and how good was the connection?

    2. Re:I worked on this a bit by owlstead · · Score: 1

      Yes, you did...

    3. Re:I worked on this a bit by JamieIanMacgregor · · Score: 1

      4 years before that I often dealt with the Chatham islanders who could only get 9600bps via satellite/dialup how does that link compare? I would bet Antarctica was/is far better with all the sciency stuff happening down there. actually quite interested to hear what the Chathams link is like these days if any /.er's know

    4. Re:I worked on this a bit by MichaelSmith · · Score: 1

      The python was slow.

    5. Re:I worked on this a bit by torsmo · · Score: 1

      How different is IceCube from the Kamioka experiments (past, current and future)?

    6. Re:I worked on this a bit by tomthegeek · · Score: 1

      PS Forgot to sign in.

    7. Re:I worked on this a bit by Deep+Penguin · · Score: 1

      Around 1 mbps, but with *huge* round-trip times (over 1000 ms). Additionally, geosync sats are below the horizon (their coverage is only from ~80N-80S and nobody else in the world lives between 80-90), so they have to use deprecated sats that aren't in the "groove" anymore, Iridium sats, and NASA's TDRSS network. Those old sats and the TDRSS birds are only above the horizon for a few hours at a time, but Iridium is a full constellation, providing 24/7 coverage. The costs are such that Iridium is used for textual emails when the other sats are not visible (there's a filter on the mail server and messages of a few K bytes are pushed over the Iridium equivalent of SMS via several modems in parallel) but the phone bill would be too expensive for megabit service 24/7.

      I also worked for UW between 2003-2009, for the same department, and was on the other end of those racks (among other things, I spec'ed out and ordered the individual shipping crates for the HP servers), and installed equipment, and ran the detector for two winters. If Gherald's immediate boss was Australian, we worked for the same guy. I mention the dates because over that time frame, while I was there, the drive mechanism on the 10m comms dish broke multiple times (which affected bandwidth and uptime because they couldn't track on the sats), two birds were splashed (MARISAT-2 and one of the oldest TDRSS birds) and one reallocated by the DoD (LES9). We had wild flucuations of how many hours per day we were online, sometimes as little as 2-3, sometimes as much as 10-11.

      http://ars.userfriendly.org/cartoons/?id=20040921&mode=classic

  21. Re:BBT by Dishwasha · · Score: 1

    How dare you associate Sheldon with such an imbecilic experiment. Sheldon and any other mathematician worth his weight had ALREADY proven the existence of high speed neutrinos. I takes a pack of idiots to spend hundreds of millions of dollars to "prove" something when we had already done so YEARS ago.

  22. Re:Ice cube jokes by Jah-Wren+Ryel · · Score: 2

    28 Neutrinos later and the damn kids are still asking, "Are we there yet?"

    --
    When information is power, privacy is freedom.
  23. Re:BBT by Sez+Zero · · Score: 1

    Sheldon and any other mathematician...

    How dare you lump Sheldon in with lowly mathematicians. He's a theoretical physicist, not some school teacher.

  24. Re:BBT by Dishwasha · · Score: 1

    Um.....what do you think a theoretical physicist is, ignoramus?

  25. Re:BBT by vux984 · · Score: 1

    This is about right...

    http://xkcd.com/435/

  26. Re:Ice cube jokes by EdIII · · Score: 1

    LOL. I swear I took at least 30 seconds reading the fucking title wondering, "What the fuck is IceCube doing looking neutrinos?"

    For a second guys.... My brain rationalized it. For just a little bit I accepted a reality where a gangsta rapper put the thug life on hold to look for secrets of the universe, not with weed, but with physics bitches.

  27. You would never know... by mbone · · Score: 2

    You would never know, reading the original article, that neutrinos were detected from SuperNova 1987A back in, well, 1987.

    1. Re:You would never know... by MichaelSmith · · Score: 1

      Yeah but they were from, like, the next galaxy over.

    2. Re:You would never know... by Anonymous Coward · · Score: 1

      Supernovas (and the sun) produce neutrinos with energies around 10^7 electron-Volts. The neutrinos detected by IceCube are around 10^15 electron-Volts. They're as different as radio waves (wavelength > 1 m) and x-rays (wavelength 10^-8 m).

      These high-energy neutrinos can't possibly be produced by supernovas, so they must come from something else - like cosmic rays being accelerated in active galactic nuclei (the "AGNs" mentioned in the summary).

  28. Re:Ice cube jokes by DMUTPeregrine · · Score: 1

    Well, if Brian May can do it why can't a rapper?

    --
    Not a sentence!
  29. Re:Ice cube jokes by EdIII · · Score: 1

    I don't mean to treat the man unfairly. I'm speaking about his gangsta persona. It's not like his real name is Ice Cube you know...

  30. Matrix by jimmydigital · · Score: 1

    So... are we living in the matrix or what?

    --
    Every normal man must be tempted, at times, to spit on his hands, hoist the black flag, and begin slitting throats. -HLM
    1. Re:Matrix by gl4ss · · Score: 1

      that's a load of new age bullshit.

      tmost major religions would lead you to believe something along those lines and the article makes wonderful assumptions that the universe the simulation is running in is like this supposedly simulated universe, that they would have had to take shortcuts and those shortcuts would be possible to notice - and notice without them altering noticing them - and taken to that direction why make an assumption that the world outside the room you're not in is running at all when you're not looking.

      and would we like to know? for sure, yes, it's human nature. only people who wouldn't like to know are new age tweeks who would just like to keep pretending that it is a possibility. would it make any difference at all? not really, just that it would prove some kind of "gods"

      this doesn't prove anything like that either way though. it seems it might discredit some theories though.

      --
      world was created 5 seconds before this post as it is.
  31. Re:Ice cube jokes by imadoofus · · Score: 1

    Because it's Friday, I ain't got no job, and ain't got shit to do!

    --
    "pr0n": An anagram of "porn," possibly indicating the use of pornography. - www.microsoft.com
  32. Re:Ice cube jokes by thewolfkin · · Score: 1

    After GZA explained the origins of the universe. IceCube decides to one up him in the lab. Rap beef has been taken to a whole new level.

    --
    Just another second banana
  33. Re:Knot jokes by thewolfkin · · Score: 1

    Picture me rolling
    from that joke man.

    --
    Just another second banana
  34. thats about $2M a neutrino by peter303 · · Score: 1

    I havent heard of kids detecting neutrinos for a science fair project yet.

  35. Re:BBT by mcgrew · · Score: 1

    How dare you lump Sheldon in with lowly mathematicians.

    Steven hawking: "There's an arithmetic error on page three" of Sheldon's report.
    George Smoot: "With all due respects, Dr. Cooper, but are you on crack?"

  36. Re:Ice cube jokes by mcgrew · · Score: 1

    You know, Mister Ed, that if "ice cube" on slashdot makes you think about a rapper, maybe you're at the wrong site?

    I'm REALLY disappointed. A bunch of offtopic, unfunny rapper jokes in a threat about an important scientific discovery and the fucking normals have to drown out any intelligent conversation I came here to read.

    Come on, normals, STFU and let the smart folks educate you. That's what I come here for, not rapper jokes I could hear at a ghetto tavern.

  37. Re:Excellent Editors by boristhespider · · Score: 1

    To be fair, at least one of my "jokes" was modded down and it deserved to be because it was woefully unfunny.

    On the other hand, my posting history does at least show I've occasionally attempted to clarify or explain various parts of cosmology that are within the bounds of my expertise (as a professional cosmologist of some seven or eight years post-doctoral experience). I think I'm allowed to make the occasional comment that I really wish I hadn't because it's simply not funny.

  38. Re:Ice cube jokes by EdIII · · Score: 1

    I think someone needs to lighten the fuck up

  39. Re:Ice cube jokes by EdIII · · Score: 1

    I was posting in response to somebody ASKING for funny thoughts about Ice Cube.

    Get over yourself.

  40. Re:Ice cube jokes by Lotana · · Score: 1

    Welcome to Slashdot. This place always got shit floating at the top. At least the site moved on past GNAA and Natalie Portman crap.

    All the early posts are made by those that don't read the article or (at most) quickly skim wikipedia on the subject. So just do what the rest of us are doing: scroll down past first 3-4 threads and at that point you might come across something more insightful and worthwhile.