How does the black holes forms in moon?
What possible forms might the dark matter in the halo of the milky way be in?
Asked in Black Holes
What were black holes before they turned into black holes?
Asked in Black Holes, Astrophysics
Why are there black holes in space?
Simply put, the existence of black holes is consequential to the laws of physics. If you have enough matter and it's concentrated enough, there will be a point at which the escape velocity is higher than the speed of light and a black hole forms. For more detailed reasons as to why black holes exist, a separate study of each type would help, primordial black holes are believed to have been generated by processes during the creation of the universe; stellar black holes are the result of events in stellar evolution, supermassive black holes result from attrition of matter during the formation of galaxies.