High-energy neutrinos ensnared from beyond the solar system
Speedy particles may point to gargantuan black holes or cataclysmic explosions
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ENERGETIC ERNIE IceCube light detectors measured the flash triggered by a neutrino, nicknamed Ernie, on January 3, 2012. With an energy of 1.14 million billion electron volts, Ernie is the highest-energy neutrino ever observed.
Courtesy of the IceCube Collaboration