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Record-breaking neutrino is most energetic ever detected
Although still under construction, the sea-floor KM3NeT detector spotted a neutrino 20 times more powerful than any previously detected.
The particle — which probably came from a distant galaxy — was spotted by the Cubic Kilometre Neutrino Telescope (KM3NeT), a collection of light-detecting glass spheres on the floor of the Mediterranean Sea, on 13 February 2023. KM3NeT consists of strings of sensitive light detectors anchored to the sea floor at a depth of around 3,500 metres off the coast of the Italian island of Sicily, as well as in a second, smaller array near Toulon, France. In the February 2023 event detected by the Sicily observatory, the team estimated that the muon carried 120 PeV of energy, on the basis of the unusual amount of light it produced.
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