This is impossible to answer with today's technology. Sorry
Why am *I* safe from black holes? Because the nearest one from my planet is 1600 light years away. I don't know if that means YOU are safe from black holes -- I don't know the distance between your planet and the nearest black hole -- but I know my safety is assured.
There is no proven connection between the Bermuda Triangle and black holes.
Science at this time can find no end to black holes. They seem to last forever.
The things that we observe as quasars are believed to be caused by huge black holes.
The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.The closest known stellar-mass black hole seems to be at a distance of a few thousand light-years. Of course, there may be black holes that are closer, but that are not known as such yet.
Not much. The closest (known) black hole is at a distance of about 3000 light-years.
The distance is 7cm.
The distance between Neptune and a black hole can vary widely depending on the location of the black hole. Black holes are found throughout the universe, so there isn't a fixed distance between Neptune and all black holes. Neptune is currently about 2.7 billion miles from the closest known black hole, which is the stellar-mass black hole in the system HR 6819.
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.
Black holes emit Hawking Radiation, which is the only way of locating one from a great distance
The existence of black holes is an outgrowth or prediction of General Relativity, which was Einstein's theory of gravitation. The dominant force forming black holes is the force of gravity, a universal attraction between mass.
Black holes could be dangerous to people if people were close to a black hole, but there are no black holes near the planet Earth (as far as we know) and the closest one is probably in the center of the Milky Way galaxy, which is about 80,000 light years from Earth, which is a safe distance.