<ul><li>Using an underwater observatory, the KM3NeT neutrino observatory, an international team has detected an ultra-high-energy cosmic neutrino with an energy greater than 100 PeV.</li><li>Neutrinos, which are subatomic particles, can travel vast cosmic distances without being deflected or absorbed, making them good probes for studying energetic processes in the universe.</li><li>The detection of the ultra-high-energy neutrino opens up possibilities to identify powerful cosmic accelerators, which have not been clearly identified, or detect new physics beyond the Standard Model.</li><li>Ongoing upgrades to neutrino observatories like KM3NeT aim to detect more of these rare but highly informative particles, enabling scientists to answer fundamental questions in astrophysics.</li></ul>

Ultra-high-energy neutrino detection opens a new window on the universe

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