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A Super-Energetic Neutrino That Reached Earth in 2023 Has Been Confirmed to Be Real. But Where Did It Come From?
Two years ago, Earth was hit by the most energetic neutrino in history. Scientists thought it might be a measurement error, but a new study has confirmed this “ghost particle” was real.
A comprehensive study published in the journal Physical Review X compared the data of KM3-230213A with databases of information on other ghost particles that have been detected. As the paper acknowledges, with the information available, it’s not possible to “draw firm conclusions on whether the observation hints at a new ultra-high-energy component in the spectrum.” But if there were other recordings of similarly energetic neutrinos, this would present a substantial advance by hinting that other previously unseen phenomena are out there.
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