pluto...but don't put your trust on this question cause i don;t think its a planet anymore... =)
The nearest black holes we know about are light-years away, so it makes hardly any difference what planet you are on.
Well, nobody knows where actually is a blackhole. They are noticed when celestial bodies start revolving around something which can't be seen ! Maybe one is just coming towards our solar system ! Moreover scientists say that there is a supermassive blackhole present at the centre of our galaxy.
In the centre of the Andromeda galaxy
(john here) actually, we don't know what is in the centre of Andromeda. That there is a black hole there is conjecture.
The closest known black hole is several thousand light-years away (no reason to worry, then). However, there may be black holes much nearer to us, which have not been discovered yet.
The closest one we know about is called "Cygnus X-1" meaning that was the first X-ray source discovered within the constellation of Cygnus, the Swan.
black hole 1and black hole 2
Black holes in science fiction movies are giant, black holes that rotate like a circular saws inwards.
The things that we observe as quasars are believed to be caused by huge black holes.
Most black holes are stellar mass black holes with masses comparable to those of large stars as they form from the collapse of massive stars. Scientists know of the existence of supermassive black holes that are millions to billions of times the mass of our sun and can be found in the centers of most galaxies. Scientists still do not know how these black holes become so massive.
See link below indicating that black holes do hum at a frequency calculated to be B flat, 57 octaves below middle c. The conclusion may technically be accurate, but it really has no meaning on a practical level. The gases around a black hole are on average extremely thin, and even if this sound is generated on earth at stp no human, and probably no living creature of any kind would be able to come close to "hearing" it. If there is no possibility that it can ever be heard, is it correct to call it sound? After all, not all electromagnetic radiation is called 'light'.
X-rays are the best band for studying black holes as the radiations emitted by the black hole is X-rays so we can expect the presence of a black hole anywhere in the Universe.
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.
Black holes does emit radiation, but they cannot be detected from earth. We use gravitational lensing to "see" the black holes.
No. If you get to close, you are out of luck!
No. There are no known black holes that would threaten Earth and the chances of one coming anywhere close even in the next few billion years are extraordinarily small.
Earth is a planet. Center's of galaxies sometimes contain black holes. Planets can't be black holes.
Yes
Since the nearest black hole is many light years away from Earth, it's impossible for a scientist to physically travel to a black hole to study it. Instead, they have to make do with observing the effects of black holes from Earth.
Black holes were stars that were so massive that they collapsed on itself. The gravity in black holes is infinite and more you get closer to it, more time gets slower. Black holes suck all matter that is too close. Even light can't escape Black holes.
Black Holes are nowhere near earth, but if we do get close enough it will first rip us apart or if it's gravatational pull isn't that much then we would just get crushed?
No, we don't know of any black holes close enough to get to.
Yes, that's where they are. A black hole on Earth would utterly destroy the Earth, in a very short time.The existence of black holes is now generally accepted, by the way.
No - at least no black holes as defined by physics.