New telescopes could help spot ‘photon ring’ of the first black hole ever imaged

Detecting the thin rings would reaffirm Einstein’s theory of gravity

M87 black hole simulation

A computer simulation of the black hole at the center of the galaxy M87 shows two rings: a thick orange line and a pixel-thin bright band at the inner edge of that thick line. New telescopes could help identify the presence of such rings, which were hidden in the previous black hole image.

M.D. Johnson et al/Science Advances 2020

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