Independent study reanalyzes first-ever black hole image, confirming iconic ring is real

On April 10, 2019, the Event Horizon Telescope (EHT) collaboration published the first-ever image of a black hole, located at the center of the galaxy M87 about 55 million light-years from Earth. The iconic ring—a black hole "shadow" surrounded by a ring produced by hot rotating gas—matched predictions of Einstein's general relativity and supported the view that supermassive black holes commonly exist at galaxy centers, though scientists have disagreed over whether the original image accurately showed the ring's details and structure. A new study published in Nature used a new technique to reanalyze the original observational data, validating the original conclusions and revealing the ring's structure from a new angle, further strengthening confidence in the result.