Detector

Underwater detector spots the most energetic neutrino yet

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KM3NeT detector

KM3NeT is a neutrino telescope consisting of strings of optical detectors placed deep beneath the ocean. Credit: KM3NeT 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 … Read more

An Unfinished Detector has Already Spotted the Highest-Energy Neutrino Ever Seen

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This is an artist's impression of a KM3NeT installation in the Mediterranean. Underwater neutrino detectors take advantage of location to track these fast particles. Image Courtesy Edward Berbee/Nikhef.

When it comes to particles, only photons are more abundant than neutrinos, yet detecting neutrinos is extremely difficult. Scientists have gone to extreme lengths to detect them, including building neutrino observatories in deep, underground mines and in the deep, clear ice of Antarctica. One of their latest efforts to detect neutrinos is KM3NeT, which is … Read more