The 2026 Nobel Prize in physics was awarded to Francis Halzen “for decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.”

In 1988, Halzen proposed what ultimately became the IceCube Neutrino Observatory, a detector for capturing ghostlike messengers buried 2 kilometers beneath Antarctic ice, opening the world to neutrino astronomy. He has been its principal investigator since 2001.

“Congratulations to Francis Halzen on receiving the Nobel Prize in physics for his groundbreaking contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin,” said Meredith LeMasurier, chief publishing officer of AIP Publishing. “From the bold idea of using Antarctic ice to detect these elusive particles to the discoveries IceCube has made possible, his work embodies the ambition and curiosity that propel science forward. This recognition celebrates an extraordinary scientific achievement and the enduring drive to push beyond the boundaries of what we know about our universe.”

Read AIP’s full press release: AIP Congratulates 2026 Nobel Prize Winner in Physics.

Visit our Nobel resource page 2026 Nobel Prize Resources for more information about this year’s Nobel winners and their scientific achievements.