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The existence of black holes is predicted in theory. It can't be 'proven', but several theoretical consequences of their existence have been observed, so it's looking pretty good. It's impossible to say how many there are, even if they do exist; in fact, it will never be possible. However, I can absolutely positively guarantee and assure you of one thing: No black hole has ever been seen.
What else can I help you with?
Do galaxies have black holes in the center?
Yes, many galaxies have supermassive black holes at their centers.
What does it mean that black holes are theory?
Whoever said this seems to think that there is not enough direct evidence for black holes. However, I understand there is enough evidence to believe that black holes actually exist - including the observation of many, many objects that can only be black holes.
Are black holes known?
Yes, black holes are known and regarded by many scientists, astronomers, and physicists.
How many black holes happen?
It is not known how many black holes exist. One of the main reasons is that, if matter is not actually falling into the black hole, it is impossible to detect.
How many black holes are there in the milky way?
The milky way contains about a dozen black holes in the milky way.
Does a galaxy contain black holes?
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).
Do all galaxies have black holes in the center?
Not all galaxies have black holes in their centers, but many large galaxies, including our own Milky Way, are believed to have supermassive black holes at their centers.
Do all galaxies have black holes?
Not all galaxies have black holes. While many galaxies, including our own Milky Way, have supermassive black holes at their centers, there are also galaxies that do not have black holes. The presence of a black hole in a galaxy depends on various factors such as the size and age of the galaxy.
Why cant you see black holes from earth?
Black holes emit so very little radiation they are hard to see. Many black holes lie at the center of galaxies and there they are hidden by stars and dust.
Is it that there is only 1 black hole in space?
No, there are many black holes in space. They reside throughout the universe and come in different sizes, ranging from stellar-mass black holes to supermassive black holes found at the centers of galaxies.
Does every galaxy have a black hole at its center?
Not every galaxy has a black hole at its center. While many galaxies do have supermassive black holes at their centers, there are also galaxies that do not have black holes.
How many black holes were in this galixy?
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.
