Black hole

What is Black-Hole?

       Black holes are the disks of gaseous and dusty clouds moving around an Event Horizon(a region with infinity gravitational force) nothing can escape it if it is too close and we cannot see through or inside it.

How is Black hole formed?

       Most of the Stars are the collection of Hydrogen atoms which collapse due to high gravity of the star, Nuclear fusion of hydrogen creates helium atoms which releases huge amount heat energy and this energy makes radiation and this creates force of repulsion between gravity and radiation in a balanced manner as long as there is fusion between light elements but for the stars having massive masses like our sun and beyond.
       There are layers of light and heavy elements in these stars and at the center is iron core. When fusion is started between heavy elements until it reaches iron core, iron core does nothing and their fusion creates high amount of iron. This decreases balance between gravity and radiation until it reaches certain point where this balance is broken and it breaks the core and the star explodes in a supernova explosion and it dies. Sometimes it creates light dwarfs or sometimes entire mass of the core collapses into a black hole.

For More Follow Captain's Pedia