Black holes exist at the centers of galaxies from "summary" of The Milky Way by Moiya McTier
At the heart of each galaxy lies a mysterious and powerful entity known as a black hole. This enigmatic cosmic structure exerts a gravitational pull so strong that not even light can escape its grasp. Scientists have long theorized about the existence of these dark behemoths, and recent observations have confirmed their presence at the centers of most galaxies, including our own Milky Way. Black holes are formed when massive stars reach the end of their lives and collapse under their own gravity. The resulting singularity creates a gravitational well so deep that it warps space-time around it, trapping anything that comes too close. These invisible monsters lurk in the shadows, silently consuming nearby gas, dust, and even entire stars. The presence of a black hole at the center of a galaxy has profound implications for its evolution. As matter spirals into the black hole's event horizon, it releases enormous amounts of energy in the form of radiat...
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