Nobel Prize in Physics Awarded to Francis Halzen for Neutrino Observatory
Belgian physicist Francis Halzen has won the 2026 Nobel Prize in Physics for his work on the IceCube Neutrino Observatory in Antarctica and for discoveries of high-energy neutrinos from space. The Nobel committee recognized his vision in creating a completely new form of astronomy based on detecting cosmic particles.
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Francis Halzen, a Belgian astrophysicist aged 82 at the University of Wisconsin–Madison, has been awarded the 2026 Nobel Prize in Physics. The award recognizes his decisive contributions to constructing the IceCube Neutrino Observatory in Antarctica and his role in discovering high-energy neutrinos originating beyond our solar system. According to the Nobel committee, his work has established the foundations for an entirely new type of astronomy based on these elusive cosmic particles.
Halzen first conceived the concept of a massive neutrino detector embedded in Antarctic ice in 1988, a project that many regarded as exceptionally ambitious at that time. The observatory functions by detecting neutrinos through capturing the flash of light produced when these particles collide with atomic nuclei in the clear glacial ice, employing an extensive network of sensors. Mark Pearce, the chair of the Nobel committee, stated that Halzen's determination and scientific vision had enabled discoveries that help scientists understand distant galaxies and exploding stars. Speaking by phone from Italy following the announcement, Halzen described the award as a 'great surprise' and noted that success in the project was never assured when it began.
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