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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NSF Press Conference on Breakthrough in Multi-messenger Astrophysics

An announcement of recent multimessenger astrophysics findings led by the National Science Foundation’s IceCube Neutrino Observatory at the South Pole.


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Learn more about IceCube, cosmic neutrinos and blazars

Check out all resources available to learn more about these important events.


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Neutrinos pass a test of a fundamental symmetry

A new measurement of the IceCube Collaboration has put Lorentz symmetry to the test and found—yet again—that neutrinos behave as expected. The results, published in Nature Physics, are the most stringent limits to date in the neutrino sector on the existence of a Lorentz violating field.