It’s Nobel Prize week, and this year's <a href="https://www.nobelprize.org/prizes/physics/2026/press-release/" target="_blank" rel="noopener noreferrer">prize in physics</a> went to Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.” <a href="https://icecube.wisc.edu/" target="_blank" rel="noopener noreferrer">The IceCube</a> is a massive neutrino detector that covers a cubic kilometer of Antarctic ice, and looks for high-energy neutrinos coming from deep space.&nbsp;In 2013, <a href="https://www.sciencefriday.com/segments/the-nobel-winner-searching-for-deep-space-neutrinos-in-antarctica/" target="_blank" rel="noopener noreferrer">Ira spoke with</a> physicist Francis Halzen about the decision to build the IceCube at the South Pole and the challenges of constructing a map of the cosmos with neutrinos.Guest:Dr. Francis Halzen is a professor of physics at the University of Wisconsin–Madison and the 2026 recipient of the Nobel Prize in physics.Transcripts for each episode are available within 1-3 days at <a href="https://www.sciencefriday.com/segments/the-nobel-winner-searching-for-deep-space-neutrinos-in-antarctica/" target="_blank" rel="noopener noreferrer">sciencefriday.com</a>.
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