Nobel Prize in Physics awarded for the IceCube neutrino observatory

The 2026 Nobel Prize in Physics went to Francis Halzen for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin. The detector uses a cubic kilometer of Antarctic ice at the South Pole as an effective gigaton tank for rare neutrino events.

• Francis Halzen won the 2026 physics Nobel for IceCube
• IceCube uses a cubic kilometer of Antarctic ice as its detector
• It is the fifth Nobel Prize awarded for neutrino research
• Before IceCube, cosmic neutrinos were detected only once, from a 1987 supernova