Formation of a Black Hole
Probably many people know about black holes, but little do people know that black holes are constructed with clans of dead stars. Many species of stars die in various ways, but the most common way of stars dying is that they run out of hydrogen and they explode! When one star dies, it sucks up other dead stars and the black hole is formed.
One aspect of a black hole is gravity so how do they get the gravity? Well, of course since all things in space have gravity! Since only the hydrogen of a star dies out, the gravitational pull is still there! Millions of stars make up a black hole so it has so much gravity. There is a theory for this scientific belief: “The more dead stars there are, the bigger the black hole.” You better wish the Earth never gets sucked up a black hole.