BibTeX:

@article{IJIRSTV3I1021,
     title={Review Study on "The Black Hole"},
     author={Dr.Syed Ghause Ibrahim},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={3},
     number={1},
     pages={14--16},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV3I1021.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

As a star grows old, swells, then collapses on itself, often you will hear the word “black hole” thrown around. The black hole is a gravitationally collapsed mass, from which no light, matter, or signal of any kind can escape. These exotic objects have captured our imagination ever since they were predicted by Einstein's Theory of General Relativity in 1915. So what exactly is a black hole? A black hole is what remains when a massive star dies. Not every star will become a black hole, only a select few with extremely large masses. In order to have the ability to become a black hole, a star will have to have about 20 times the mass of our Sun. No known process currently active in the universe can form black holes of less than stellar mass. This is because all present black hole formation is through gravitational collapse, and the smallest mass which can collapse to form a black hole produces a hole approximately 1.5-3.0 times the mass of the sun .Smaller masses collapse to form white dwarf stars or neutron stars.

Escape Velocity, Horizon, Schwarzschild Radius, Black Hole