University of Wisconsin-Madison

IceCube Neutrinos Point to Long-Sought Cosmic Ray Accelerator

In two papers published today in Science, IceCube together with partner telescopes and observatories on Earth and in space announced the identification of blazar TXS 0506+056 as the first likely source of high-energy neutrinos and cosmic rays.



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IceCube and HAWC dissect the cosmic-ray anisotropy

It was only a few years ago that IceCube provided the first view of the arrival direction distribution of cosmic rays in the Southern Hemisphere.


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Atmospheric tau neutrino appearance in IceCube

Neutrino oscillations were discovered by Super-Kamiokande in 1998, proving that neutrinos had nonzero mass and that new physics was hiding behind these tiny, only weakly interacting particles.


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Week 53 at the Pole

Last week at the Pole started in 2018 but ended in 2019. What better way to launch into the new year than by unveiling something shiny and bright? That’s the tradition at the South Pole, with a special ceremony held each January 1 to reset the marker at the geographic South Pole.