Francis Halzen Wins 2026 Nobel Prize in Physics for IceCube Neutrino Observatory
On October 6, the Nobel Prize in Physics for 2026 was awarded to Francis Halzen, a theoretical physicist from the University of Wisconsin-Madison, for his groundbreaking work on the IceCube Neutrino Observatory in Antarctica. Halzen, originally from Belgium and born in 1944, came up with this innovative idea in the 1980s. The IceCube project, completed in 2011, consists of 5,160 light sensors placed in 86 boreholes, with funding from the National Science Foundation. It gained attention in 2013 when it detected the first high-energy neutrinos from outside our solar system. Halzen received praise from Mark Pearce for his vision, and he was awarded 12 million Swedish kronor (around $1.2 million), the first individual Physics Nobel since 1992.
Key facts
- The 2026 Nobel Prize in Physics was awarded on October 6 to Francis Halzen of the University of Wisconsin-Madison
- Halzen was honored for developing the IceCube Neutrino Observatory, built in Antarctic ice to detect high-energy neutrinos
- IceCube was completed in 2011 and comprises a cubic kilometer of ice with 5,160 light sensors in 86 boreholes reaching depths of about 8,000 feet
- The observatory is operated by UW-Madison and primarily funded by the National Science Foundation
- In 2013 the collaboration reported the first evidence of high-energy neutrinos from beyond the solar system, founding neutrino astronomy
- The IceCube collaboration included about 450 international scientists at roughly 60 institutions as of January 2025
- Researchers plan to expand the detector to eight cubic kilometers of South Pole ice
- Halzen receives the full 12 million Swedish kronor (about $1.2 million), the first solo Physics Nobel since 1992
Entities
Artists
- Francis Halzen
- Mark Pearce
- Francesca Di Lodovico
- Richard Fitzgerald
- Elizabeth Gibney
- Davide Castelvecchi
- Issy Ronald
- Katie Hunt
- Georgia Michelman
- Christopher Michel
- Johan Jarnestad
- Juan Carlos Díaz Vélez
Institutions
- University of Wisconsin-Madison
- IceCube Neutrino Observatory
- Nobel committee for physics
- KTH Royal Institute of Technology
- King's College London
- Nature
- Physics Today
- American Institute of Physics
- CNN
- National Science Foundation
- The Royal Swedish Academy of Sciences
- Smithsonian magazine
- New York University
- Science
- Knowable Magazine
- Live Science
- Wikimedia Commons
- Royal Swedish Academy of Sciences
- Nobel Committee for Physics
- Wisconsin IceCube Particle Astrophysics Center
- University of Wisconsin–Madison
- New York Times
- WIRED en Español
Locations
- Belgium
- Antarctica
- South Pole
- Sweden
- London
- United Kingdom
- Wisconsin
- Madison
- United States
- New York
- Milky Way
- Stockholm
- Italy