Yes. There is a supermassive black hole at the center of the galaxy and a number of stellar mass black holes through the rest of it.
Scientists predict that there are over one million black holes in our galaxy
Black holes can technically be any where. Some scientists believe that there is a black hole in the center of our galaxy along with many other galaxies. Because black holes are so difficult to detect, they can be very dangerous.
Not all galaxies, but it is believed that the majority of galaxies have central black holes.
Such a galaxy is called a spiral galaxy.
Black holes are a bit hard to detect, so I am pretty sure that not all black holes in this galaxy are known - and I suspect there is not even a decent estimate. But you can expect there to be several.
Not really "a" black hole - many black holes. It is currently believed that all, or most, galaxies have a huge black hole at its center. Any galaxy should also have lots of smaller black holes - so-called "stellar" black holes, because they have approximately the mass of a star (larger stars can become black holes).
Yes. Our galaxy has a supermassive black hole at its center and likely millions of stellar mass black holes scattered throughout.
Yes
Yes, Black Holes are very common in our galaxy and general.
It's not "galaxy stars", but galaxies, that have the black holes at their center.All, or most, galaxies have a giant black hole at their center.
Let's put it this way... All larger galaxies have huge black holes in their center. In addition to that, you can expect any galaxy to have a significant number of stellar black holes.
Scientists predict that there are over one million black holes in our galaxy
Black holes do not create supernovae. Black holes are created from a supernovae.
Black holes can technically be any where. Some scientists believe that there is a black hole in the center of our galaxy along with many other galaxies. Because black holes are so difficult to detect, they can be very dangerous.
Mostly the center of the galaxy.
Yes. Most, of a galaxy's mass is stars and nebulae, not black holes.
I don't think there is a galaxy called "Satan A"; at least, not as a standard name, generally accepted by astronomers. On the other hand, most larger galaxies have a supermassive black hole at its center, and it can be expected that any galaxy has several stellar black holes.