Supermassive black holes act as the engines powering the centers of galaxies, including our own Milky Way galaxy. But in a first, scientists have observed that one galaxy contains three supermassive black holes at its core and they're surprisingly close together.
원문출처 : https://www.cnn.com/2019/11/21/world/three-black-holes-galaxy-scn/index.html
원문출처 : https://www.cnn.com/2019/11/21/world/three-black-holes-galaxy-scn/index.html