https://www.npr.org/2026/10/06/g-s1-146622/nobel-prize-physics
Francis Halzen wins Nobel Prize in physics for work on high-energy neutrinos from space
October 6, 20266:16 AM ET
STOCKHOLM — Francis Halzen won the Nobel Prize in physics on Tuesday for his contributions to the IceCube Neutrino Observatory and his discovery of high-energy neutrinos of astrophysical origin.
"Francis Halzen has led an international team of researchers and engineers who have provided us with a fantastic instrument. His tenacity and scientific vision has paved the way for a new kind of astronomy," Mark Pearce, chair of the Nobel Committee for Physics, said in a news release.
Halzen spoke to the committee by phone from Italy on Tuesday.
"It was a great surprise and I obviously didn't expect it," he said.
Born in Belgium, the 82-year-old scientist is affiliated with the University of Wisconsin–Madison in the U.S. Efforts by The Associated Press to reach him were not immediately successful.
The IceCube Neutrino Observatory is a research facility located at the South Pole in Antarctica, according to its website, and the University of Wisconsin–Madison is its lead institution.
Neutrinos are tiny cosmic particles with a mind-bogglingly small mass. Yet they are everywhere: they spew from stars like the sun and trillions zip through our bodies every second.
Scientists can't glimpse the mysterious ghost particles zooming around on their own. Instead, they measure what happens when the tiny particles collide with other bits of matter, producing flashes of light or charged particles.
Halzen studied a rare gang of neutrinos that scientists consider messengers from the cosmos, offering clues to how the universe evolved.
His research into capturing neutrinos at the South Pole dates back to the 1980s.
https://www.npr.org/2026/10/06/g-s1-146622/nobel-prize-physics
