Black holes such as the one in M87 are ringed by disks of hot gas that steadily flow inward toward the maws of the voids. These disks are not placid; they can be tumultuous, with denser clumps ...
However, by shifting the angle of the Hubble Space Telescope’s line of sight toward M87, astronomers recently ... blasting out of the supermassive black hole at the galaxy’s center.
"We hypothesize that the ring image resulted from errors during EHT's imaging analysis and that part of it was an artifact, rather than the actual astronomical structure." ...