In many nebulae, astronomers observe that the density of matter, whether it is stars, dust or gas, increases greatly as it gets closer to the center of the nebula.
Based on measurements of the rapid circular motion of this material, people have in many cases been able to determine that in the center of the nebula there is a very heavy black hole.
The reason why the black hole has not absorbed all the matter and absorbed it is that matter is never sucked directly into a black hole.
When a celestial sphere is affected by the gravitational pull of another sphere (or black hole), any lateral motion is multiplied to form a circular process.
That’s why even the most powerful black holes can’t gobble up all the matter in one mouthful – and it can’t reach the entire nebula.
However, our galaxy is a good example that the black hole in the center has cleaned up everything in its immediate vicinity.
There is still a lot of matter near the center, but the vast majority of the Milky Way’s matter is at a safe distance from the black hole and its danger zone.
