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By Rodrigo Santos Andrade
Nobel prize in physics winner Francis Halzen says reward was getting neutrinos breakthrough to work
visibility comment0 event October 6, 2026 timer 14:43
University of Wisconsin-Madison professor of physics Francis Halzen was awarded the Nobel Prize of Physics Tuesday.
Halzen received the award for his contributions to the understanding of neutrinos, astrophysical particles produced by energetic events in the universe, according to a UW-Madison news release. He leads work at the IceCube Neutrino Observatory, an Antarctic telescope embedded a kilometer into ice. The IceCube telescope was the first to provide evidence of a source of high-energy cosmic rays, the release states, which scientists have struggled to pinpoint since their discovery over 100 years ago.
Halzen’s study realized that pristine ice at the South Pole could be used to track such neutrinos, sometimes known as "ghost particles" for the way they pass through the Earth without a trace, only interacting with matter extremely rarely.
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