Underwater detector spots the most energetic neutrino yet

On Feb. 13, 2023, something extraordinary happened deep beneath the Mediterranean Sea. KM3NeT’s Astroparticle Research with Cosmics in the Abyss (ARCA) telescope, a sprawling underwater array of ultra-sensitive photodetectors, caught sight of the telltale sign of an incredibly rare cosmic messenger: a highly energetic fundamental particle known as a neutrino. With an estimated energy ofContinue reading “Underwater detector spots the most energetic neutrino yet”
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