There may be a problem with the first image of a black hole. After three years of analysis, a group of researchers in Japan has produced an image of M87* – the supermassive black hole at the centre of the M87 galaxy – that looks markedly different from the one released by the Event Horizon Telescope (EHT) collaboration in 2019. The researchers claim that the EHT group may have made a mistake.
To make the first black hole image, …
