Black hole

Have you guys heard about the term Black hole? I think you does… But many of us didn’t know much about it. We all seen and heard about the black hole only in comics, fictional movies, cartoons etc. But is it really exists? How does it look like and what does it do?
Come let’s know more about it… A black hole is a region of space in which the gravitational field is so powerful that nothing, including electromagnetic radiation (e.g. visible light), can escape its pull after having fallen past its event horizon. The term derives from the fact that absorption of visible light renders the hole’s interior invisible, and indistinguishable from the black space around it.
Despite its invisible interior, a black hole may reveal its presence through interaction with matter orbiting the event horizon. For example, a black hole may be perceived by tracking the movement of a group of stars that orbit its center. Alternatively, one may observe gas (from a nearby star, for instance) that has been drawn into the black hole. The gas spirals inward, heating up to very high temperatures and emitting large amounts of radiation that can be detected from earthbound and earth-orbiting telescopes. Such observations have resulted in the general scientific consensus that—barring a breakdown in our understanding of nature—black holes do exist in our universe.
Thus still experiments are going on to know much about the black hole. Let’s hope that this black hole really exists…