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Black-hole observations solve cosmic-ray mystery
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Nature 626, 240-241 (2024)
doi: https://doi.org/10.1038/d41586-024-00223-4
References
H.E.S.S. Collaboration. Science 383, 402–406 (2024).
Abeysekara, A. U. et al. Nature 562, 82–85 (2018).