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Keyword: neutrino

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  • Earth's Clearest Skies Revealed [Ideal Telescope Site In Antarctica - Graphic On Comments Page]

    06/08/2009 11:59:30 PM PDT · by zeestephen · 10 replies · 961+ views
    New Scientist ^ | 06 June 2009 | Anil Ananthaswamy
    POSSIBLY the clearest skies on Earth have been found - but to exploit them, astronomers will have to set up a telescope in one of the planet's harshest climates...[Scientists] evaluated different factors that affect telescope vision, such as the amount of water vapour, wind speeds and atmospheric turbulence...The team found that the Antarctic plateau offers world-beating atmospheric conditions - as long as telescopes are raised 20 meters above its frozen surface...[The Antarctic air is] drier than the Atacama desert in Chile [where some of the best telescopes in the world are currently located].
  • Cosmologists Probe Mystery Of Dark Energy With South Pole Telescope

    04/05/2008 11:43:32 AM PDT · by RightWhale · 5 replies · 221+ views
    sciencedaily ^ | 3 Apr 08 | staff
    Cosmologists Probe Mystery Of Dark Energy With South Pole Telescope ScienceDaily (Apr. 3, 2008) — Something is pulling the universe apart. What is it, and where will it take us from here? Scientists at the Kavli Institute for Cosmological Physics, University of Chicago, seek answers to those questions with the newly-commissioned South Pole Telescope. Frigid and bone-dry, with six straight months of night each year, the South Pole is a forbidding place to live or work. But for largely the same reasons, it’s one of the best spots on the planet for surveying the faint cosmic microwave background (CMB) radiation...
  • Reactor Data Hint At Existence Of Fourth Neutrino

    03/22/2016 10:11:28 AM PDT · by blam · 14 replies
    MyInforms - Science News ^ | 3-22-2016 | Ron Cowen
    Ron Cowen 3-22-2016 In tunnels deep inside a granite mountain at Daya Bay, a nuclear reactor facility some 55 kilometers from Hong Kong, sensitive detectors are hinting at the existence of a new form of neutrino, one of nature’s most ghostly and abundant elementary particles.Neutrinos, electrically neutral particles that sense only gravity and the weak nuclear force, interact so feebly with matter that 100 trillion zip unimpeded through your body every second. They come in three known types: electron, muon and tau. The Daya Bay results suggest the possibility that a fourth, even more ghostly type of neutrino exists —...
  • Two physicists earn Nobel Prize for discovering neutrino's chameleon-like powers

    10/06/2015 5:24:45 PM PDT · by SeekAndFind · 7 replies
    Los Angeles Times ^ | 10/06/2015 | Amina Khan
    The 2015 Nobel Prize in physics has gone to two scientists for discovering the quirky, shape-shifting behavior of neutrinos — tiny ghostlike particles that fill the universe, traveling close to the speed of light. Takaaki Kajita of the Super-Kamiokande experiment at the University of Tokyo and Arthur B. McDonald of the Sudbury Neutrino Observatory at Queen’s University in Canada were awarded the physics Nobel on Tuesday for their discovery that neutrinos oscillate — and thus, that they must have mass. Small as these particles are, the scientists' insight — that neutrinos are chameleon-like particles, switching identities in an instant —...
  • Retest of neutrino speed suggests Einstein was right, after all

    03/19/2012 4:22:37 PM PDT · by U-238 · 16 replies · 1+ views
    Christian Science Monitor ^ | 3/19/2012 | By Clara Moskowi
    Six months after physicists shocked the world by announcing they'd found particles seemingly traveling faster than light, the growing scientific consensus seems to be that the results were flawed. Neutrinos are the vampires of physics. Researchers at the ICARUS project in Italy have recreated an independent version of the original Switzerland-based experiment, called OPERA, and found that their particles traveled at a respectable, sub-light speed. Though the results don't automatically disprove OPERA's findings, they add to most scientists' sense that the shocking finding was an anomaly "The evidence is beginning to point towards the OPERA result being an artifact of...
  • Message Encoded in Neutrino Beam Transmitted through Solid Rock

    03/18/2012 11:29:14 PM PDT · by U-238 · 18 replies · 1+ views
    Scientific American ^ | 3/16/2012 | John Matson
    Neutrinos are having a moment. They’re speeding across Europe (just how fast is under review), they’re changing flavors in China and, now, they’re carrying rudimentary messages through bedrock in Illinois. A team of physicists encoded a short string of letters on a beam of neutrinos at Fermi National Accelerator Laboratory in Batavia, Ill., and sent the message to a detector more than a kilometer away. On the journey the neutrinos passed through 240 meters of solid rock, mostly shale. What was the word they transmitted in the preliminary demonstration? “Neutrino.” The experiment is described in a paper posted to the...
  • BREAKING NEWS: Error Undoes Faster-Than-Light Neutrino Results

    02/22/2012 2:21:19 PM PST · by Lonesome in Massachussets · 56 replies
    Science Insider ^ | 22 February 2012 | Edwin Cartlidge
    It appears that the faster-than-light neutrino results, announced last September by the OPERA collaboration in Italy, was due to a mistake after all. A bad connection between a GPS unit and a computer may be to blame. Physicists had detected neutrinos travelling from the CERN laboratory in Geneva to the Gran Sasso laboratory near L'Aquila that appeared to make the trip in about 60 nanoseconds less than light speed. Many other physicists suspected that the result was due to some kind of error, given that it seems at odds with Einstein's special theory of relativity, which says nothing can travel...
  • Particles recorded moving faster than light: CERN

    09/22/2011 12:16:56 PM PDT · by John W · 134 replies
    Reuters ^ | September 22, 2011 | Robert Evans
    An international team of scientists has recorded neutrino particles traveling faster than the speed of light, a spokesman for the researchers said on Thursday -- in what could be a challenge to one of the fundamental rules of physics. If confirmed, the discovery would overturn a key part of Albert Einstein's 1905 theory of special relativity, which says that nothing in the universe can travel faster than light.
  • The world's largest neutrino telescope – made from a giant cube of ice at the South Pole

    01/03/2011 9:44:44 AM PST · by Silentgypsy · 22 replies
    Live Science ^ | 12/20/2010 | Live Science staff
    The world's largest neutrino telescope – made from a giant cube of ice at the South Pole – aimed at detecting subatomic particles traveling near the speed of light has been completed, researchers announced today (Dec. 20). http://www.livescience.com/environment/south-pole-neutrino-observatory-construction-finished-101220.html
  • Light shed on mysterious particle

    03/31/2006 6:04:35 AM PST · by The_Victor · 83 replies · 1,321+ views
    BBC ^ | 3/31/2006 | Rebecca Morelle
    Physicists have confirmed that neutrinos, which are thought to have played a key role during the creation of the Universe, have mass. This is the first major finding of the US-based Main Injector Neutrino Oscillation Search (Minos) experiment. The findings suggest that the Standard Model, which describes how the building blocks of the Universe behave and interact, needs a revision. Neutrinos are believed to be vital to our understanding of the Universe. But scientists know frustratingly little about these fundamental particles. The findings build on work carried out by Japanese physicists. Different 'flavours' Neutrinos are sometimes described as "ghost particles"...
  • It's The Little Things That Matter - Neutrinos

    03/04/2005 6:57:57 AM PST · by wallcrawlr · 12 replies · 553+ views
    Star Tribune ^ | March 4, 2005 | Larry Oakes
    SOUDAN, MINN. -- How long does it take to get from Chicago to Soudan? For tiny subatomic bits called neutrinos, 2.5 milliseconds with never a weather delay. Among the smallest known particles in the universe, neutrinos can take shortcuts straight through the Earth. Scientists hope they'll also provide a shortcut to solving some of the most intriguing mysteries of the universe. Today, at the federal Fermilab outside Chicago, U.S. Rep. Jim Oberstar, D-Minn., and other dignitaries will dedicate a $180 million project that will involve flinging trillions of neutrinos through the Earth to a massive detector in Soudan. The 6,000-ton...
  • 'Telescope' buried a mile under the Antarctic ice to find source of cosmic rays

    10/18/2010 6:44:01 AM PDT · by LucyT · 18 replies
    Telegraph.co.uk ^ | 18 Oct 2010 | Richard Gray, Science Correspondent
    A "telescope" buried deep under Antarctic ice has detected the first signals that scientists hope will allow them to identify the source of mysterious particles that bombard Earth from outer space. For the past ten years scientists have been planning and building an ambitious experiment to explain the mystery of what produces the cosmic rays and elusive particles known as neutrinos, which constantly pepper our planet. more at Telegraph.co.UK
  • One of the World's Biggest Telescopes Is Buried Beneath the South Pole

    12/17/2010 4:04:40 PM PST · by ColdOne · 40 replies · 1+ views
    FoxNews.com ^ | December 17, 2010 | Blake Snow
    Like exploding stars, black holes, dark matter? How about cosmic intrigue, deep space astronomy , or origins of the universe? Then you’re gonna love this. Researchers at the University of Wisconsin are putting the finishing touches on a giant underground telescope buried beneath the South Pole to help understand said phenomenon.
  • Sea floor records ancient Earth

    03/23/2007 11:06:03 PM PDT · by Ernest_at_the_Beach · 66 replies · 4,679+ views
    BBC ^ | Friday, 23 March 2007, 09:09 GMT | Jonathan Fildes Science and technology reporter, BBC News
    The ancient sea floor was discovered in southwest Greenland A sliver of four-billion-year-old sea floor has offered a glimpse into the inner workings of an adolescent Earth.The baked and twisted rocks, now part of Greenland, show the earliest evidence of plate tectonics, colossal movements of the planet's outer shell. Until now, researchers were unable to say when the process, which explains how oceans and continents form, began. The unique find, described in the journal Science, shows the movements started soon after the planet formed. "Since the plate tectonic paradigm is the framework in which we interpret all modern-day geology,...
  • South Pole Detector Could Yield Signs of Extra Dimensions

    02/15/2006 9:30:32 PM PST · by Marius3188 · 67 replies · 1,527+ views
    Northeastern University ^ | 26 Jan 2006 | Newswise
    Newswise — Researchers at Northeastern University and the University of California, Irvine say that scientists might soon have evidence for extra dimensions and other exotic predictions of string theory. Early results from a neutrino detector at the South Pole, called AMANDA, show that ghostlike particles from space could serve as probes to a world beyond our familiar three dimensions, the research team says. No more than a dozen high-energy neutrinos have been detected so far. However, the current detection rate and energy range indicate that AMANDA's larger successor, called IceCube, now under construction, could provide the first evidence for string...
  • New particle turns up in Japan

    11/15/2003 8:43:52 PM PST · by Diddley · 178 replies · 706+ views
    Physicsweb ^ | Nov 14, 2003 | Belle Dumé
    The Belle collaboration at the KEK laboratory in Japan has discovered a new sub-atomic particle which it is calling the "X(3872)". The particle does not fit into any known particle scheme and theorists are speculating that it might be a hitherto unseen type of meson that contains four quarks (arxiv.org/abs/hep-ex/0309032; Phys. Rev. Lett. to be published). The discovery has been confirmed by the CDF collaboration at Fermilab in the US, where the new particle is being called the "mystery meson". Mesons are particles that contain a quark and an antiquark that are held together by the strong nuclear force. Since...
  • Does The Earth Harbors a Huge, Natural Nuclear Reactor at its Core -New Discovery Proves "No"

    03/31/2010 12:51:24 AM PDT · by ErnstStavroBlofeld · 15 replies · 742+ views
    The Daily Galaxy ^ | 3/30/2010 | The Daily Galaxy
    Using a delicate instrument located under a mountain in central Italy, two University of Massachusetts Amherst physicists are measuring some of the faintest and rarest particles ever detected, geo-neutrinos, with the greatest precision yet achieved. The data reveal, for the first time, a well defined signal, above background noise, of the extremely rare geo-neutrino particle from deep within Earth. The small number of anti-neutrinos detected, however, only a couple each month, helps to settle a long-standing question among geophysicists and geologists about whether our planet harbors a huge, natural nuclear reactor at its core. Geo-neutrinos are anti-neutrinos produced in the...
  • Roman ingots to shield particle detector [ Italian neutrino experiment ]

    06/11/2010 4:45:54 PM PDT · by SunkenCiv · 10 replies · 629+ views
    Nature ^ | April 15, 2010 | Nicola Nosengo
    The 120 lead ingots, each weighing about 33 kilograms, come from a larger load recovered 20 years ago from a Roman shipwreck, the remains of a vessel that sank between 80 B.C. and 50 B.C. off the coast of Sardinia. As a testimony to the extent of ancient Rome's manufacturing and trading capacities, the ingots are of great value to archaeologists, who have been preserving and studying them at the National Archaeological Museum in Cagliari, southern Sardinia. What makes the ingots equally valuable to physicists is the fact that over the past 2,000 years their lead has almost completely lost...
  • Missing piece found in particle puzzle: scientists...

    06/01/2010 4:08:50 PM PDT · by TaraP · 23 replies · 707+ views
    Reuters ^ | June 1st, 2010
    Research scientists announced on Monday they had identified the missing piece of a major puzzle involving the make-up of the universe by observing a neutrino particle change from one type to another. Science The CERN physics research center near Geneva, relaying the announcement from the Gran Sasso laboratory in central Italy, said the breakthrough was a major boost for its own LHC particle collider programme to unveil key secrets of the cosmos. According to physicists at Gran Sasso, after three years of monitoring multiple billions of muon neutrinos beamed to them through the earth from CERN 730 kms (456 miles)...
  • Looking for ET's neutrino beam

    05/22/2008 3:13:44 PM PDT · by LibWhacker · 8 replies · 193+ views
    Physics World ^ | 5/21/08 | Edwin Cartlidge
    For several decades scientists have been using telescopes to scan the heavens for unnatural-looking radio or optical transmissions coming from intelligent alien life. With this search for extraterrestrial intelligence (SETI) having so far failed to pick up a single signal, however, researchers in the US now believe it is worth extending the search beyond electromagnetic waves and start paying attention to neutrinos. John Learned of the University of Hawaii and colleagues have worked out that advanced alien civilizations could send messages within the Milky Way using neutrinos, and that these messages could be picked up using neutrino detectors currently under...