Black Hole : A mystery in the Universe

Black Hole : A mystery in the Universe

Our universe is enormous. There are so many mysterious objects and events in here. Human could not even understand or explain a tiny part of these mysteries.
Black Holes are one of those super singularities that covers themselves in eternal darkness.
Now you might wonder what a Black Hole is. Black Hole is a giant dead star with a huge mass, extremely low temperature and tremendous gravity. An average black hole has a mass equivalent to few millions suns. Its temperature is almost zero. And how strong is its gravity?
Well, the gravitational pull is strong enough to hold light within its event horizon. The fastest thing in the universe is light, unfortunately the escape velocity of a black hole due to its gravity is larger in number than the speed of light! That's why no light comes out of black hole. No light means darkness.
Thus it was named in that way, a Black Hole.

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