Black Hole

knew about the stars and their life where it born and they are destroyed let to know about this topics The definition of stars is easy "  a self-luminous gaseous spheroidal celestial body of great mass which produces energy by means of nuclear fusion reactions" where any object who follow this thing are called as star. Every one know our sun is also a Star. person who watching Stars are not only curious about star also for life to accomplish any life. Stars are formed  in clouds of gas and dust, known as nebula. Nuclear reaction   at the core of stars provides enough energy to make them shine brightly for many years.  than their life period are depends on their size The exact lifetime of a star  depends very much on its size . Very large, massive stars burn their fuel much faster than smaller stars and may only last a few hundred thousand years. Smaller stars, however, will last for several billion years, because they burn their fuel much more slowly.

A B lack hole   is a region of space time where gravity is so strong that nothing even particles or electromagnetic radiation such as light can escape from it. The theory of general relativity predicts that a sufficiently compact mass can deform space time to form a  black hole . Black hole is an object that is so dense because of its gravity, that has powerful strong gravitation field nothing can pass form it, ability to absorb all matter which have low amount of mass, where it means who has any amount have mass which can affected by black hole. All thing about Black hole will starts from 19th century the first person who tell about that things is Frederick William Herschel a german scientist who predicted that thing first in !9th century who said that object as the Dark star. William say its the dark star who is invisible, than how he found that things. William are observing sky from the beach of sea where it found that a star are moving circular to a empty space  than he p