Ultimately what happens to Black Holes??

Question

What will happen if a tiny black hole strikes Earth??

Answer 1

Black holes are supposed to evaporate due to Hawking's radiation, as long as they do not absorb more from the cosmic microwave background. Thus very small black holes have a limited life expectancy (see 1st link).
For bigger ones, they will keep growing until such time as the universe would have expanded and the cosmic microwave background radiation has reduced to less than their temperature, and then will start evaporation as well. But the life expectancy of such black hole dwarfs the age of the universe by several order of magnitude, so for all intent and purposes, black hole will stay around until something makes them go away. Perhaps the big rip (see second link)?

As to what happens if a black hole was to strike the earth, that depends on how big a black hole and how fast it was traveling. A very small black hole, say the size of a bacteria, traveling at relativistic speed, would have about the same effect as a large meteorite hitting earth, but due to its small size and high velocity, it would leave on the other side.
For larger black holes, say the mass of the sun or above, the earth would be destroyed from the gravity of the object long before an actual impact occurs.

Answer 2

black holes may eventually evaporate away without additional mass feeding them - 'Hawking Radiation' describes the theory that supports this - and smaller black holes evaporate faster than larger ones. If a very small black hole were to interact with the earth - the size of the black hole would determine the consequences - a very small, high energy (traveling fast) hole could penetrate the earth, and gradually, as it oscillated around the earth's center of gravity, consume more and more mass, until it collapsed the planet - a larger one, with mass within a couple orders of magnitude of the earth were to interact, it might just absorb the planet. The good news, is there is theoretical evidence of the existance of small black holes as a residual of the big bang, but they've probably either evaporated or become big black holes.

Answer 3

Black hole is a dead massive star with very high pressure and gravitational field. And the diameter of the black hole is very tiny because of the electron degeneration. Those explain that if a tiny black hole strikes the Earth, our Earth will absolutely disappear. No matter what.

Answer 4

A black hole is a thing which is having a very power full gravity from which not even light can escape. Then there no chance to a black hole to come and hit the earth. If its happening the earth will be destroyed due to its high gravity

Answer 5

If black holes could exist they would eventually accrete all the matter in the universe and sit doing nothing for eternity.
If a miniature black hole came to earth it would cause a big blast,then sink to the center of the earth and commence devouring it from within.
black holes can't evaporate.
A black hole would have no charge,if one half of a charged virtual particle occurred close to the event horizon it would pull it in,regardless of it's charge,the other half would escape and appear to have been radiated by the black hole reducing it's mass.
If the virtual particle appeared randomly either one would escape ,the other captured and the black hole would gain mass,though it's would appear to radiate energy.

Answer 6

Arapahoe to Apache...

Yo man... Deep question. Presumes that Black Holes travel through space like Asteroids and Comets. Hmm-m.

Well here's your answer. Black Holes are invisable to us. They cannot be seen with the eye. All light gets trapped within them and thus there is no radiation for us to see from far away on Earth. They are as large as many stars and do not come in a tiny variety as far as we know (remember we cannot see them). We know they are there because of their effect on other objects which we are observing out in space.

Scientists visualize the Black Hole as a kind of funnel cloud, shaped like a Tornado, or Dust Devil, appears here on Earth. We can see those because of all the dust and moisture within them, but we cannot see Black Holes out in space.

We don't know when they are born, or when they die, because we cannot actually see them. Their life span is unknown.

If you were to worry about a Black Hole traveling through space and striking Earth, you might as well worry about some of the stars out there doing the same thing. Then there is no end to the speculation one might get into. There is no evidence of black hole movement in our direction.

Answer 7

If Stephen Hawkings is to be believed, Black Holes gradually evaporate from various quantum-mechanical effects (that I really don't understand), known as Hawking Radiation. It is an incredibly slow process though.

I'm not sure about the second part of your question.

Answer 8

They do!

A Black hole is an impossible object which makes the Universe work. It has the useful property of being "undetectable". It's like when your spouse comes home with a dent in the car, and blames it on an invisible black mass; the dent is proof of the black mass, but you can't, and never will be able to see it with CCTV cameras, but you know it's there. "Dark matter" is an equally undetectable force that causes cars to defy gravity, and hit invisible black holes. Astronomers will tell you that lots of them have spouses with dents in their cars, and can explain this is very technical terms, so you won't be able to understand why it's not possible.

Answer 9

complicated step. check out on yahoo. it can assist!

Answer 10

We will have a Stargate program?