BLACK HOLES WITH EJECTIONS. The detection of black holes relies on astronomical clues. During the two. In recent years, astronomers and physicists around the world have sought to deduce their presence failing to prove their existence by direct observations. Four types of processes were used, i.e. 4 indices, each time, the aim is to detect the influence of the very massive and dense black hole on its nearby environn environment. on an astronomical scale. The observations concern two types of black holes: those with the mass of a typical star (4 to 15 solar masses) and those with the mass of a typical galaxy. (supermassive black holes.) Ejection black holes are older black holes that are beginning to collapse from the inside and throw out plasma gases and vapors. https://platform.wise.art/author/robert-2/ http://astroliva.ch/