10/06/2026
Massive news from the Department of Physics: Professor Francis Halzen has won the 2026 Nobel Prize in Physics.
Halzen is the principal investigator of the IceCube Neutrino Observatory, the world’s largest telescope based in Antarctica. From under a massive sheet of ice, IceCube uses light sensors to track neutrinos, neutral particles that have shed important light on supermassive black holes and cosmic rays, both from our own galaxy and beyond.
Halzen becomes the sixth physicist connected to UW–Madison to earn the Nobel Prize, and his is the 23rd Nobel Prize tied to UW–Madison overall. That legacy spans medicine, chemistry, economics, engineering and physics.
Halzen is the principal investigator of the IceCube Neutrino Observatory, the world’s largest telescope.