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Continue to ChatPhysicists dispute a claim of detecting a black hole’s ‘photon ring’ : https://exquisitepost.com/physicists-dispute-a-claim-of-detecting-a-black-holes-photon-ring/
Physicists dispute a claim of detecting a black hole’s ‘photon ring’ : https://exquisitepost.com/physicists-dispute-a-claim-of-detecting-a-black-holes-photon-ring/