Scientists long ago to investigate the secrets of black holes of outer space. This object is still a mystery, because the force of gravity were very large, up to the light “can not escape” of the black hole space.
When the compressed material exceed a certain density, a black hole could be created. Called a black hole because no light can escape from it. Secrets of Black Holes
That said, the light can go into a black hole, but he could not pass out or black hole. Some of the black hole space is also said to be the tombstone of massive stars. Secrets of Black Holes
A huge black hole thought to be hiding in the center of the Milky Way. All of the black hole’s mass is concentrated at the center point, called a singularity. Secrets of Black Holes
Around the singularity’s gravity is so strong. Space objects should be able to travel faster than light to escape from the “suction” gravitational black hole. Secrets of Black Holes
This will create a spherical zone surrounding the singularity, called the event horizon, where there is not any space object can escape from a black hole.
In theory, black holes can appear in a variety of sizes. A black hole with the mass of the sun has a diameter of 3.7 miles (6 kilometers).
Scientists said the death of a star like the sun is not enough material compressing to form a black hole. Stars with doubling scale solar masses or more, will be able to form a black hole. Secrets of Black Holes