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Here's What it Would Take to See a Black Hole's Photon Ring
Physicists dispute a claim of detecting a black hole’s ‘photon ring’
News at a glance: New gene therapy, Europe’s drought, and a black hole’s photon ring
Astronomers Reveal a Black Hole's Photon Ring For The Very First Time
Astronomers Have Revealed a Black Hole's Photon Ring for the First Time
