News Summary

• Juan Carlos Díaz Vélez works at the Wisconsin IceCube Particle Astrophysics Center.
• Professor Francis Halzen of the University of Wisconsin–Madison won the 2026 Nobel Prize in Physics.
• The neutrinos studied by Halzen’s team are not the run-of-the-mill particles we’re encountering constantly—if unknowingly.
• These cosmic particles may originate from supernova remnants or even black holes.
• The highest-energy neutrino sources we have detected come from active galactic nuclei.