The First Sight of Black Holes using the Event Horizon Telescope

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Black holes were predicted long ago by scientists like Albert Einstein and Karl Schwarzschild. However, they had never been seen until recently: In 2009, the Event Horizon Telescope was launched. It is a telescope array that consists of a global network of 12 radio telescopes. It was built to observe two supermassive black holes which are Sagittarius A* and Messier 87 (M87). On April 10, 2019, the Event Horizon Telescope Collaboration announced taking the first direct image of a black hole. The image featured the massive black hole at the center of Messier 87 galaxy