Francis Halzen Wins Nobel Prize in Physics for Neutrino Research

 
2026 Nobel Prize in Physics has been awarded to Francis Halzen, an 82-year-old Belgian-born physicist, for his significant contributions to neutrino observation research.

It is rare for an individual to win the Nobel Prize in Physics alone. Halzen is the first sole recipient since Georges Charpak, a Polish-born French physicist who was honored in 1992 for inventing the multi-wire proportional chamber.

The Royal Swedish Academy of Sciences announced on October 6 that Halzen was recognized for his pivotal contributions to the IceCube Neutrino Observatory and for the discovery of high-energy neutrinos of astrophysical origin.

This year's prize totals 12 million Swedish kronor (approximately $1.1 million), which Halzen will receive in full as the sole laureate.

Halzen is the research director at the IceCube Neutrino Observatory located at the Amundsen-Scott South Pole Station. The observatory has been operational since 2010 and is the largest neutrino detection facility in the world.

He is also a distinguished professor at the University of Wisconsin-Madison.

Mark Pierce, a member of the Nobel Physics Committee, praised Halzen's perseverance and vision, stating that he has opened a new path in astronomy. The committee explained that observing ultra-high-energy neutrinos from space has paved the way to uncover previously unknown cosmic phenomena.
 
Neutrinos, unlike other particles, interact very little with ordinary matter, allowing them to travel vast distances through the universe without changing direction or losing energy. This unique property enables neutrinos to provide valuable information that cannot be obtained through other means, although their observation is extremely challenging.
 
Halzen first proposed the vision of observing neutrinos in Antarctica in 1988.
 
Since its inception in 1901, the Nobel Prize in Physics has been awarded 120 times, with a total of 231 laureates. Of these, 48 have been awarded as sole recipients, while 72 have been shared among multiple winners.
 
Excluding six years (1916, 1931, 1934, and 1940-42) when no prize was awarded, there has been a recipient every year.
 
The announcement of this year's Nobel Prize winners began on October 5 with the Physiology or Medicine Prize, followed by the Physics Prize on October 6. The Chemistry Prize will be announced on October 7, the Literature Prize on October 8, the Peace Prize on October 9, and the Economics Prize on October 12.