What is a black hole in space?

Answer 1

A black hole is a region of space from which nothing can escape, even light. It is impossible to see a black hole directly because no light can escape from them, they are black. Black holes are thought to form from stars or other massive objects if and when they collapse from their own gravity to form an object whose density is infinite.

Answer 2

An object which consists of a huge amount of matter squeezed into a relatively small space. If the earth were to become a black hole, it would be roughly the size of a pea.

The gravitational pull of an average black hole is so strong that not even light can escape once it comes within a certain distance.

Answer 3

A black hole is the final remnant of a collapsed large star. It is so dense that the force of gravity at its surface means the 'escape velocity' exceeds the speed of light - therefore light cannot escape it which is why it is known as 'black'. If light cannot escape, then neither can anything else - anything passing beyond the boundary (the 'event horizon') will never return; it will be crushed under the intense gravity and become part of the black hole - thus making the pull of the black hole even greater.

I hope this helps.

Answer 4

One of the best representations of a black hole that I have seen is this. Imagine that space has "drain holes" in it. These are similar to the drain in your tub. As little specks approach the drain they swirl rapidly down the hole and disappear.
A black hole does this with matter like other stars and also light. Since light is sucked into the black hole also, there is no light that escapes and that area of space appears black (absense of light). The cause for these seems to be collapsed matter which becomes almost infinitely dense and so has a tremendous gravitational pull.

Answer 5

A black hole is the remains of a star. To create a black hole a star has to be in a certain size range otherwise it creates a dwarf star. When the star collapses, it forms a region of space that has a very small volume and nearly infinite mass. The gravitational effects are so great that not even light can escape. Hence the term black hole. It is actually very much more complex as black holes do appear to radiate energy and can shrink. To fully understand it you need to reference a book by a theoretical physicist. I always recommend Dr. Stephen Hawking as his works are very understandable. Even I could get it from his work.

Answer 6

Every object has what is called an "escape velocity." This is the velocity necessary to escape the gravitational pull of said object. Black holes are objects so massive and dense that the escape velocity is higher than the speed of light. Since, as far as we can tell, nothing can travel faster than the speed of light, whatever falls into a black hole can never come back out again, not even light.

Hence the term "black hole."

Answer 7

When you drop an object it falls towards the ground because the earth is the heaviest object closest to it - gravity.

So all things in the proximity of earth are drawn to it, in space a black hole is an area so heavy that everything is drawn to it, even something not normally associated as being effected by gravity - light.

They are still theoretical though, but likely to exist.

Answer 8

When a very massive star runs out of fuel and stops burning, there is no longer any heat in the center to push the matter in it outwards. So the star's matter (which is mostly gas) collapses into the center, forming a very, very dense core.

In very rare cases, there is so much mass collapsed into the center that the protons and neutrons themselves collapse, and the whole thing forms a "singularity" which has the mass of the star, but zero size. That is called a "black hole".

Answer 9

a BLACK hole is a part of the universe which is supposed to distort the space time continuum and in the process produce what are known as gravitional waves which propogate outward from the black hole and the amplitude of which reduces over distance. this is why black holes are so difucult to locate.

Answer 10

A black hole, is a high gravitational Field.