Not all galaxies, but it is believed that the majority of galaxies have central black holes.
Almost every galaxy has a super massive black hole in its centre and this fact is widely accepted now days . Milky way galaxy also have a super massive black hole of its own, weighing more than 4 million times more than our sun's mass. Andromeda galaxy is our nearest neighbour having a super massive black hole in its centre weighing 114 million solar masses .
Black holes can be found anywhere in space.There are 2 types of black holes.Stellar and super massive black holes.Super massive black holes can be found in the middle of every galaxy including our own milky way.Stellar black holes can be found anywhere in space.
Scientists predict that there are over one million black holes in our galaxy
millions of black holes are in all of the galaxies, and in the center of all large galaxies is an enormous black hole that makes all the stars go around it. the power was a million times greater 350 years ago. this cycle will repeat over again. Scientists have come to believe that there is very probably a supermassive black hole in the center of the Milky Way, and that there may be supermassive black holes at the centers of many galaxies.
To understand the 'how' of the presence of a supermassive black hole believed to be in the center of the Milky Way, one would need to know of the mechanism of its origin, which is tied to the origin of the galaxy itself. If sufficient matter is present in a given location, gravitational forces cause the matter to 'clump' and if sufficiently strong, it will continue to accrete and gain in mass; above a certain mass, given favorable conditions, a black hole will form. This is believed to have happened during the formation of our galaxy. In the case of the black hole at the galactic center, calculations indicate it has managed to acquire over four million solar masses.
Usually at the center of a galaxy or where a large star has exploded.
Almost every galaxy has a super massive black hole in its centre and this fact is widely accepted now days . Milky way galaxy also have a super massive black hole of its own, weighing more than 4 million times more than our sun's mass. Andromeda galaxy is our nearest neighbour having a super massive black hole in its centre weighing 114 million solar masses .
Black holes can be found anywhere in space.There are 2 types of black holes.Stellar and super massive black holes.Super massive black holes can be found in the middle of every galaxy including our own milky way.Stellar black holes can be found anywhere in space.
There is no such thing as a black hole with the mass of a galaxy. At least, none that we know of, and not if you are thinking of a large galaxy like the Milky Way. The largest known black hole has about 20 billion solar masses - which is still much less than the mass of a typical galaxy. For example, our Milky Way is estimated to have a mass of about 700 billion solar masses. However, such as massive black hole does have a mass comparable to smaller galaxies, i.e., dwarf galaxies. In any case, such huge black holes are found in the center of large galaxies.
Nebulae are found in various places throughout every galaxy.
Most of them are found at the center of the galaxies.
Scientists predict that there are over one million black holes in our galaxy
A bulge is a tight group of stars found at the center of most spiral galaxies. The bright spot an the center of the galaxy in the picture above is the bulge. If this galaxy were seen from the side the collection of stars would create a bulge (spheroid) expanding out from the otherwise rather flat galaxy.
The nucleus is found in the center of every atom.
Xriun 1000billion lightyears away
We more or less have. We have found stars at the center of the galaxy orbiting an object that seems to be rather small, but has a mass about 4 million times the mass of the sun. The only think we know of that could be that small with such a large mass is a black hole. Because no light escapes from a black hole, however, it is nearly impossible to detect one directly.
Astronomers have found evidence that there is a large black hole at the center of our galaxy. Some theories make it possible that there are smaller black holes here or there, but I'm not aware that any have been detected.