A photon that challenges Einstein: According to current physics, it should never have reached Earth

September 8, 2026 · 1:40 pm 1 sources

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• A photon that challenges Einstein: According to current physics, it should never have reached Earth
  Phys.org · September 8, 2026 13:40
  How did a photon survive a journey of more than 2 billion light-years when, according to known physics, it should have been absorbed long before reaching Earth? This is the question at the heart of a new study by Giorgio Galanti (INAF) and Marco Roncadelli (INFN), accepted for publication in…