Trillions of neutrinos, nicknamed ghost particles, pass through you every second without a trace. Francis Halzen's idea was to catch them by turning a cubic kilometre of Antarctic ice into a telescope. IceCube found neutrinos from deep space, traced one to a blazar 3.7 billion light-years away, and earned Halzen the 2026 Nobel Prize in Physics. Here's how it works, what it found, and what remains unsolved.
LitWiz30: literary wisdom in under 30 minutes. Voiced by AI, researched and fact-checked by Lone Pixel.
Sources:
- Nobel Prize in Physics 2026, popular science background: https://www.nobelprize.org/uploads/2026/10/popular-physicsprize2026.pdf
- Nobel Prize in Physics 2026, press release: https://www.nobelprize.org/uploads/2026/10/press-physicsprize2026.pdf
- IceCube Neutrino Observatory (Wikipedia): https://en.wikipedia.org/wiki/IceCube_Neutrino_Observatory
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