Have you ever heard about Black Holes then you must know that Black Holes are objects that not even light can escape from their gravity. Researchers believe that if matter comes near a Black Hole, it would pull the matter into itself something like a vacuum. Black holes also are the endpoints of stars from at least 10 to 15 times as massive of the Sun. Black Holes are so small some researchers think that they are not there. Black Holes are believed to be only a few  tens of kilometers in the size.