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KM3NeT Detects 220 PeV Neutrino: Scientists Rule Out Primordial Black Hole Explosion Near Earth A Record-Breaking Detection Beneath the Mediterranean The KM3NeT collaboration, an extensive international research consortium, operates a vast neutrino telescope network beneath the Mediterranean Sea. Its mission is to detect high-energy neutrino events — exceptionally rare and short-lived interactions involving neutrinos, subatomic particles of almost negligible mass, often dubbed “ghost particles” due to their elusive nature. In a recent breakthrough, the team recorded an extraordinarily powerful neutrino event measuring approximately 220 peta-electron volts (PeV) . This ranks among the most energetic detections ever observed, yet its cosmic source remains unknown. Scientists from the Universidad de São Paulo and the Universidad Autónoma de Madrid have since conducted a theoretical investigation into one compelling hypothesis: that the event may have been triggered by the explos...

LHAASO Discovers the True Origin of the Cosmic Ray "Knee" in the Milky Way Introduction  —  A 70-Year Astrophysics Mystery Solved On 16 November, the Large High Altitude Air Shower Observatory (LHAASO) announced landmark results that resolve a long-standing enigma in astrophysics: the mysterious knee-like dip in the cosmic ray energy spectrum occurring beyond 3 PeV. The origin of the "knee" has puzzled scientists for almost 70 years. It was long thought to mark the acceleration limit of cosmic-ray sources and signal a shift between two power-law energy distributions. Now, two new papers — appearing in National Science Review and Science Bulletin — show that micro-quasars powered by black hole accretion are potent particle accelerators within the Milky Way and likely creators of the "knee." The work was carried out by teams from the Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Nanjing University, the University of Science and Techn...