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Icecube

All articles tagged with #icecube

science3 days ago•2 min saved

Francis Halzen Wins 2026 Physics Nobel for IceCube Neutrino Discovery

Francis Halzen of the University of Wisconsin–Madison has been awarded the 2026 Nobel Prize in Physics for his foundational role in developing the IceCube Neutrino Observatory. The award recognizes his 1988 proposal to use a cubic kilometer of Antarctic ice as a detector for high-energy neutrinos. In 2013, IceCube confirmed the existence of astrophysical neutrinos, opening a new era of multi-messenger astronomy. Halzen’s work allows scientists to trace cosmic events, such as supermassive black holes, that are invisible to traditional light-based telescopes.

via The Conversation|

#astrophysics #francis-halzen #icecube

science3 days ago•8 min saved

Francis Halzen Wins 2026 Physics Nobel for IceCube Neutrino Breakthroughs

Francis Halzen, a physicist at the University of Wisconsin-Madison, has been awarded the 2026 Nobel Prize in Physics for his foundational role in developing the IceCube Neutrino Observatory. The prize recognizes his vision for using a cubic kilometer of Antarctic ice to detect high-energy neutrinos from distant cosmic events, a breakthrough that opened the field of neutrino astronomy and enabled the first identification of specific extragalactic sources for these particles.

via Ars Technica|

#francis-halzen #icecube #neutrino-astronomy

science4 days ago•2 min saved

Francis Halzen Wins 2026 Physics Nobel for IceCube Neutrino Observatory

Belgian-born physicist Francis Halzen has been awarded the 2026 Nobel Prize in Physics for his foundational role in developing the IceCube Neutrino Observatory at the South Pole. The award recognizes his vision for using a cubic kilometer of Antarctic ice to detect high-energy neutrinos, particles that act as messengers from distant cosmic events. Halzen, now 82 and affiliated with the University of Wisconsin–Madison, first proposed the concept in 1988. The prize, worth 12 million Swedish kronor, highlights how IceCube has enabled a new form of astronomy by capturing signals from violent processes in the universe that traditional telescopes cannot observe.

via BBC|

#francis-halzen #icecube #neutrinos

science1 month ago•166 min saved

Trillions of Cosmic Particles Zip Through You Every Second

Earth is constantly bathed in cosmic particles. About 100 trillion neutrinos pass through each of us every second, mostly from the Sun, and nearly all go through without interacting. Cosmic-ray showers also create muons—tens to hundreds pass through a person each second (roughly one or two through a hand). Neutrino interactions are extremely rare; detectors like the IceCube Neutrino Observatory infer their numbers from tiny Cherenkov flashes. Cosmic radiation adds about 0.4 millisieverts per year to our exposure, within a natural ~2.4 mSv/year background. In short, we’re continuously bathed in invisible particles, but they pose negligible health risk and connect us to the cosmos.

via Live Science|

#astrophysics #cosmic-rays #icecube

science1 month ago•46 min saved

Dark Matter as a Cosmic Magnifier Reveals Neutrino Origins

Researchers propose that some IceCube neutrino detections are magnified by gravitational lensing from a dark-matter filament deflecting emissions from the blazar PKS 2233-148, a finding that could sharpen our view of how neutrinos are produced and the black hole at a blazar’s core.

via Yahoo|

#blazar-pks-2233-148 #dark-matter #gravitational-lensing

science2 months ago•14 min saved

Antarctic Ice Becomes a World-Scale Neutrino Telescope

IceCube is a cubic-kilometer neutrino detector buried in the South Pole ice, using 5,160 photomultiplier modules on 86 strings to detect Cherenkov light from neutrino interactions. By using the Earth as a filter, it can observe high-energy neutrinos from across the sky, turning the planet into a giant telescope. Since 2013 it has identified extraterrestrial neutrinos and linked sources such as TXS 0506+056 and NGC 1068, and in 2023 mapped the Milky Way in high-energy neutrinos. Deep ice, calibration LEDs, and hot-water drilling enabled its deployment, after which sensors remained inaccessible.

via Space Daily|

#antarctica #cherenkov #detector

space-science3 months ago•6 min saved

Dusty Galaxy Emerges as Possible Source of Ghost Neutrinos

A high-energy neutrino detected by IceCube may have originated from Shadow Blaster, a dust-enshrouded, intensely star-forming galaxy 11 billion light-years away that is gravitationally lensed. This link, while tentative (about 1% chance of a random coincidence), suggests star-forming galaxies could contribute a significant fraction of the diffuse neutrino background, and motivates deeper multiwavelength follow-up with facilities like ALMA and JWST to pinpoint more such sources.

via CNN|

#gravitational-lensing #icecube #neutrinos

science3 months ago•97 min saved

Dusty Galaxy Shadow Blaster Pinpoints Home of High-Energy Neutrino

Astronomers trace a high-energy neutrino detected by IceCube to Shadow Blaster, a dust-rich, strongly gravitationally lensed star-forming galaxy about 11 billion light-years away. This marks the first direct link between a single dusty galaxy and a high-energy neutrino, suggesting such galaxies can be significant sources of cosmic neutrinos and could contribute up to ~20% of the diffuse neutrino background; the finding, published in Nature Astronomy, relied on observations from JCMT, SMA, ALMA, and Gemini to map the galaxy’s dense, star-forming core and its lensing mass.

via Space|

#gravitational-lensing #icecube #neutrinos

space4 months ago•13 min saved

Earth-Directed Blazar Jets May Explain Record Ultra-High-Energy Neutrino

A 220 PeV neutrino detected by KM3NeT in 2023 is examined for origins; a population of blazars—jets from active galactic nuclei aimed at Earth—could account for such events without exceeding the extragalactic gamma-ray background measured by Fermi, though no electromagnetic counterpart was found and IceCube’s non-detection constrains the scenario. The study shows the blazar-population model is plausible within a defined parameter range and highlights the need for future KM3NeT upgrades and more data to confirm or refute this diffuse-origin explanation.

via Space Daily|

#blazar #gamma-ray-background #icecube

science6 months ago•5 min saved

Antarctic Radio Anomaly Deepens Mystery as ANITA Signals Defy Explanation

NASA’s ANITA detected unusual radio pulses from beneath the Antarctic ice (2016–2018). New analyses rule out simple neutrino explanations and cross-checks with the Pierre Auger Observatory and IceCube found no similar events, suggesting the anomaly isn’t new physics but a complex propagation effect near ice; a next‑gen detector, PUEO, may help resolve the mystery.

via The Daily Galaxy|

#anita #anomaly #antarctica

science1 year ago•5 min saved

IceCube Unveils New Neutrino Analysis Method

The IceCube Observatory analyzed 14 years of neutrino data, finding a potential source near galaxy NGC 1068 and identifying a new hot spot in the southern sky, using a combined approach that enhances sensitivity to steady neutrino sources and advances understanding of cosmic ray origins.

via Earth.com|

#all-sky-search #cosmic-rays #icecube

science1 year ago•14 min saved

Scientists Trace Origins of Mysterious High-Energy Cosmic Rays

Astronomers are making significant progress in identifying the origins of the highest energy cosmic rays, with evidence pointing to our own galaxy. Using detectors like IceCube and LHAASO, scientists have traced these particles back to sources such as pulsar wind nebulae, supernova remnants, and black holes within the Milky Way, advancing our understanding of cosmic particle acceleration and multi-messenger astronomy.

via Big Think|

#cosmic-rays #galactic-sources #high-energy-particles

science1 year ago•4 min saved

Sterile Neutrino Search Yields No Results

The IceCube Collaboration has conducted a comprehensive search for sterile neutrinos using 10.7 years of data from their detector at the South Pole, but found no evidence of their existence. This result, published in Physical Review Letters, further lowers the probability of sterile neutrinos existing, consistent with the standard three-neutrino model. The study involved improved data modeling and analysis, contributing to the ongoing investigation into neutrino physics.

via Phys.org|

#icecube #neutrinos #particle-physics

entertainment2 years ago•2 min saved

Ice Cube Counters Katt Williams' Allegations Over 'Friday After Next' Scenes and Casting

Comedians Kevin Hart and Ice Cube have responded to Katt Williams' critical comments from his appearance on the Club Shay Shay podcast. Ice Cube addressed Williams' remarks about their film "Friday After Next," clarifying that a rape scene involving Williams' character was never intended to be depicted in a certain way, and praised Williams for enhancing the role of Money Mike. Hart's response was more succinct and passive-aggressive, dismissing Williams' claims of Hart being an industry plant with a brief tweet suggesting Williams harbors unnecessary anger, while promoting his new Netflix movie "Lift."

via Yahoo Entertainment|

##clubshayshay #comedy

entertainment2 years ago•4 min saved

Ice Cube Counters Katt Williams' Claims on 'Friday' Series and Addresses Allegations in Recent Interviews

Ice Cube has addressed Katt Williams' claims about a controversial rape scene and issues with pay in the "Friday" movie franchise. Ice Cube refuted the notion that he would include a rape scene in his movies, emphasizing that it's not his style, and explained that the budget for the films was mostly allocated to production costs, not cast pay. He also spoke on the casting process, highlighting Williams' contribution to the role of Money Mike and clarifying the decision to cast Rickey Smiley as Santa Claus instead. Williams had previously discussed these topics during an interview on the Club Shay Shay podcast, where he also criticized those who complained about their pay as "ungrateful bastards."

via Hollywood Reporter|

##entertainment #fridayafternext