#multimessenger physics

⚡🔭🌌 The highest-energy neutrino ever detected — recorded in 2023 deep in the Mediterranean by the KM3NeT/ARCA detector — may have been produced by a population of blazars, the most extreme particle accelerators in the universe. A new study in JCAP presents the most physically consistent model to date for explaining this unprecedented event, which surpasses all prior detections by more than an order of magnitude. An open question that multimessenger astrophysics is finally beginning to answer. 🧲💫🕳️