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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).
  • 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 ^ | 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
  • 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 ^ | 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 (; 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...
  • Physicists capture image of elusive neutrinos

    11/06/2007 8:58:29 AM PST · by SunkenCiv · 9 replies · 88+ views
    Cosmos Magazine ^ | Wednesday, October 24, 2007 | Agence France-Presse
    European physicists have sent a neutrino on a 730-kilometre trip under the Earth's crust and taken a snapshot of the instant it slammed into lab detectors... In 2006, CERN started beaming neutrinos from its accelerator complex near Geneva, and have so far detected several hundred impacts in San Grasso. But the scientists have now taken the venture a step forward by starting to fill the San Grasso detector with small film plates which measure with high accuracy the cascade of particles that are produced when a neutrino impacts. These plates, called bricks, are each made of a sandwich of lead...
  • Harlan: Welcome to the great neutrino rush of '06

    04/16/2006 7:25:14 AM PDT · by rellimpank · 10 replies · 468+ views
    Rapid City Journal ^ | 16 Apr 06 | Bill Harlan
    Physics giant Wolfgang Pauli told a friend in 1930, "I have done something very bad today." Pauli's sin was "proposing a particle that cannot be detected," which he lamented "is something no theorist should ever do." Three years later, Enrico Fermi christened Pauli's ghost particle the "neutrino." In 1951, physicists Frederick Reines and Clyde Cowen first detected man-made neutrinos in an experiment at a nuclear reactor in South Carolina. Later, researcher Ray Davis detected solar neutrinos at his famous experiment 4,850 feet underground in the Homestake gold mine in Lead. The Homestake rock shielded his detector from interfering cosmic rays....
  • First measurements of Earth's core radioactivity

    07/27/2005 11:13:59 AM PDT · by LibWhacker · 35 replies · 1,496+ views
    New Scientist ^ | 7/27/05 | Celeste Biever
    EARTH'S natural radioactivity has been measured for the first time. The measurement will help geologists find out to what extent nuclear decay is responsible for the immense quantity of heat generated by Earth. Our planet's heat output drives the convection currents that churn liquid iron in the outer core, giving rise to Earth's magnetic field. Just where this heat comes from is a big question. Measurements of the temperature gradients across rocks in mines and boreholes have led geologists to estimate that the planet is internally generating between 30 and 44 terawatts of heat. Some of this heat comes from...
  • Neutrino ripples spotted in space; Universal lumpiness is imprinted in mysterious particles

    06/18/2005 2:47:19 PM PDT · by PatrickHenry · 58 replies · 1,265+ views
    Nature Magazine ^ | 17 June 2005 | Mark Peplow
    Astronomers have spotted a signature of neutrinos created just seconds after the Big Bang. The find supports current models of the origins of our Universe, and may provide a glimpse of its birth. The fundamental particles called neutrinos are difficult to study, because they interact so weakly with normal matter - trillions whizz straight through your body every second. But Roberto Trotta, an astrophysicist from Oxford University, UK, and his colleague Alessandro Melchiorri of the University of Rome 'La Sapienza', Italy, say that the signature of primordial neutrinos is written in the cosmic microwave background (CMB). These microwaves are the...
  • New theory links neutrino's slight mass to accelerating universe expansion

    07/27/2004 12:34:34 PM PDT · by PatrickHenry · 55 replies · 1,229+ views
    University of Washington News Office ^ | 27 July 2004 | Vince Stricherz
    Two of the biggest physics breakthroughs during the last decade are the discovery that wispy subatomic particles called neutrinos actually have a small amount of mass and the detection that the expansion of the universe is actually picking up speed. Now three University of Washington physicists are suggesting the two discoveries are integrally linked through one of the strangest features of the universe, dark energy, a linkage they say could be caused by a previously unrecognized subatomic particle they call the "acceleron." Dark energy was negligible in the early universe, but now it accounts for about 70 percent of the...
  • Europe plans lab beneath the Alps

    07/09/2004 7:36:08 PM PDT · by FairOpinion · 9 replies · 433+ views
    BBC ^ | July 9, 2004 | Dr David Whitehouse
    French and Italian scientists are planning a large underground laboratory beneath the Alps designed to detect elusive particles from the Sun's core. It would consist of a huge tank filled with several hundred thousand cubic metres of ultra-pure water. Detectors lining the tank would be sensitive to flashes of light caused by the passage of sub-atomic particles. The lab would test theories in solar physics and help scientists understand the fundamental forces of nature. Sun stream It would be built adjacent to a road tunnel under the Frejus mountain near the French-Italian border. The ambitious project has entered its earliest...

    07/09/2004 12:20:53 PM PDT · by PatrickHenry · 93 replies · 1,660+ views
    Boston University ^ | 08 July 2004 | News release staff
    A team of nearly 100 physicists from around the world have achieved results verifying that the elementary particle known as the neutrino exhibits a distinctive pattern of oscillation. This discovery shows that it is likely that the Standard Model, proposed in the 1970s to describe the fundamental forces and particles that make up all matter, is incomplete. The findings provide the needed confirmation to their previous discovery of neutrino oscillation and give the most precise measurement yet of neutrino mass. “These findings show that the Standard Model needs to be modified to better explain the fundamental forces that make up...
  • Ice Age coming into Focus!

    06/05/2004 2:32:35 PM PDT · by cureforcancer · 21 replies · 694+ views
    The Neutrino Report ^ | 1995, 2004 | Robert Texas Bailey(Tex)
    “In 1990 they found that the Earth goes through abrupt temperature changes from deep ice samples in Greenland of about 10,000 years ago the Earth’s temperature dropped 19 degrees” (research found by weather channel) taking 5-10 years (weather channel) but from analytical data, I intend to show this could take for the most part one year (Robert T Bailey) and more shocking a large part of the temperature change will happen this year! The End of the World as we known it is coming; an ice Age will change the face of the Earth. We have a crisis here. In...
  • Neutrino beam could neutralise nuclear bombs

    03/29/2004 5:04:19 PM PST · by vannrox · 51 replies · 956+ views
    New Scientist ^ | 18:51 14 May 03 | By Will Knight
    A super-powered neutrino generator could in theory be used to instantly destroy nuclear weapons anywhere on the planet, according to a team of Japanese scientists. If it was ever built, a state could use the device to obliterate the nuclear arsenal of its enemy by firing a beam of neutrinos straight through the Earth. But the generator would need to be more than a hundred times more powerful than any existing particle accelerator and over 1000 kilometres wide. "It is really quite futuristic," Alfons Weber, a neutrino scientist at Oxford University, UK, told New Scientist. "But the maths and physics...
  • Astronomy Picture of the Day 8-03-03

    08/03/2003 12:21:03 AM PDT · by petuniasevan · 3 replies · 176+ views
    NASA ^ | 8-03-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 August 3 Ice Fishing for Cosmic Neutrinos Credit: Robert Morse (U. Wisconsin) The Amanda II Collaboration Explanation: Scientists are melting holes in the bottom of the world. In fact, several holes have been melted near the South Pole, and they are now being used as astronomical observatories. Astronomers with the Antarctic Muon and Neutrino Detector Array (AMANDA) lower into each vertical lake a string knotted with basketball-sized...
  • Antarctic telescope delivers first neutrino sky map

    07/30/2003 10:36:25 PM PDT · by LibWhacker · 1 replies · 163+ views
    Antarctic telescope delivers first neutrino sky map UNIVERSITY OF WISCONSIN-MADISON NEWS RELEASE Posted: July 30, 2003 A novel telescope that uses the Antarctic ice sheet as its window to the cosmos has produced the first map of the high-energy neutrino sky. The map, unveiled for astronomers at a meeting of the International Astronomical Union, provides astronomers with their first tantalizing glimpse of very high-energy neutrinos, ghostly particles that are believed to emanate from some of the most violent events in the universe -- crashing black holes, gamma ray bursts, and the violent cores of distant galaxies. The first map of...
  • Astronomy Picture of the Day 6-23-03

    06/22/2003 10:41:21 PM PDT · by petuniasevan · 3 replies · 218+ views
    NASA ^ | 6-23-03 | Robert Nemiroff and Jerry Bonnell
    Astronomy Picture of the Day Discover the cosmos! Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2003 June 23 KamLAND Verfies the Sun Credit: KamLAND Collaboration Explanation: A large sphere beneath Japan has helped verify humanity's understanding of the inner workings of the Sun. The KamLAND sphere, shown above during construction in 2001, fails to detect fundamental particles called anti-neutrinos that are known to be emitted by nearby nuclear reactors around Japan. This triumphant failure can best be explained by neutrinos oscillating between different...