https://www.universetoday.com/139216/evidence-for-thousands-of-black-holes-buzzing-around-the-center-of-the-milky-way/On September 14th, 2013, astronomers caught the largest X-ray flare ever detected from the supermassive black hole at the center of the Milky Way, known as Sagittarius A* (Sgr A*). Credit: NASA/CXC/Stanford/I. Zhuravleva et al.