HOW BLACK HOLES FORM?

Black holes can be formed only from stars that have mass that in three (or more) times more than the sun explodes can turn to the Supermassive. When a star is turning to the Black Hole, the hydrogen burns, starts to fall like air going out of a balloon. And then the star loses gravity and it can’t stay in its place any more, and it falls down. In a few miles, it’s turning into a Black Hole.