What exactly does a black hole in space do?

Answer 1

Loosely speaking, a black hole is a region of space that has so much mass concentrated in it that there is no way for a nearby object to escape its gravitational pull.


researchers showed that when a sufficiently massive star runs out of fuel, it is unable to support itself against its own gravitational pull, and it should collapse into a black hole.

In general relativity, gravity is a manifestation of the curvature of spacetime. Massive objects distort space and time, so that the usual rules of geometry don't apply anymore. Near a black hole, this distortion of space is extremely severe and causes black holes to have some very strange properties. In particular, a black hole has something called an 'event horizon.' This is a spherical surface that marks the boundary of the black hole. You can pass in through the horizon, but you can't get back out. In fact, once you've crossed the horizon, you're doomed to move inexorably closer and closer to the 'singularity' at the center of the black hole.

Answer 2

A black hole is defined by the escape velocity that would have to be attained to escape from the gravitational pull exerted upon an object. For example, the escape velocity of earth is equal to 11 km/s. Anything that wants to escape earth's gravitational pull must go at least 11 km/s, no matter what the thing is — a rocket ship or a baseball. The escape velocity of an object depends on how compact it is; that is, the ratio of its mass to radius. A black hole is an object so compact that, within a certain distance of it, even the speed of light is not fast enough to escape.

Answer 3

Firstly a Black Hole is NOT a hole!
A Black Hole is a star that has collapsed and its gravitational mass equals the speed of light.
It gets its name from an explanation of its appearance, no light can escape from it so it would look like a hole in space, surrounded by stars.
What does it do, well the same as every other star, anything caught in its gravitational Field will be pulled into it.
Only with a Black Hole, the object caught would be crushed out of existence, or a quantum mass of 0.
So Black hole, NO!
Dark Star, YES!
If nothing more to stop the idiots thinking, Duh, Hole, I can go into a hole and come out the other side!
And NOT, a Star, if I go into a star I crash and burn!
lol

Answer 4

through the use of gravity it sucks in all matter and light....oh and dark matter, anti-matter and most probably a rare element known as DOESN'T MATTER! [oh OK i lied that one doesn't exist, yet!] but the rest of what i say is correct and i guess the best example of what could happen is Disney's movie THE BLACK HOLE from around 1979-80 in which the crew of a space ship actually get sucked into one.

Answer 5

well when a star stops buring gas, it can form a supernova and explode, or demorph into a black hole. it pulls everything in its reach into its "mouth" and stretches it a LOT. a 6 foot person could be stretched out to more than 80 feet. but we cant really research this subject much because , well, there arent any in our galaxy and unless our instruments were elastic (of sorts) then they would break when they reached their elastic limit... so the only way to study black holes is by ginormous telescopes using infrared lenses and such......

and thats all i have to say.. pretty much

Answer 6

Well, when a star collapses into it self because of age it creates a black hole sucking up all matter in radius of it. Some say it destrys what ever goes thrugh it . Others say it sends matter to another universe. WE don't really know.

Answer 7

well the rumor of a black hole being a vacumm is wrong to some extent. the gravity force around a black hole is strong but not strong enough to attract things in from a kazillion miles away(like how moves portray it). read the link i gave you..it might help.

Answer 8

The Universe is constantly recycling, matter in the black hole and
cosmic energy emitted back in equal flow, universal balance

Answer 9

They draw matter together from space,they theorize now that black holes create stars and planets.Even igniting the stars.Some are active consuming matter and others are dormant.

Answer 10

Well, They are formed by dead stars (only some do this) and they suck up all the matter that comes close enough to it. They also give off radiation. They say that if anything gets in, then all laws of physics die and new ones are replaced. We still don't know what the new ones are...