In various press conferences, representatives of the institutions collaborating in the Event Horizon Telescope (EHT) project announced that they obtained the first image of the area around Sagittarius A*, the supermassive black hole at the center of the Milky Way. The central shadow, which constitutes the black hole, is surrounded by a sort of ring formed by gas and dust that glow because they were heated by Sagittarius A*. It took the combination of 8 radio telescopes to obtain proof of the existence of this supermassive black hole, taken for granted by the vast majority of scientists but still denied by some.