Francis Halzen Wins Nobel Physics Prize For Antarctic 'Ghost Particle' Hunt

University of Wisconsin-Madison physicist Francis Halzen has been awarded the 2026 Nobel Prize in Physics for his contributions to understanding astrophysical neutrinos. Halzen led the development of the IceCube Neutrino Observatory beneath the Antarctic ice, which has helped trace high-energy neutrinos back to cosmic sources such as supermassive black holes and opened a new era of “multi-messenger” astronomy. Longtime Slashdot reader schwit1 shares a report from UW-Madison: Embedded in a cubic kilometer of Antarctic ice, IceCube uses thousands of light sensors to survey the universe for neutr