Black Holes Essay -- physics science black hole

When a star "dies" it can do many different things. It can form a neutron star, expand to a red giant and shrink into a white dwarf, or sometimes collapse upon itself to form a black hole. This is mostly dependent on the density of the star. When massive stars, those twenty times the mass of our Sun or more die, they must either exhaust all of their excess mass or implode upon themselves and form black holes. Gravity overwhelms even the nuclear forces. The gravitational force becomes so strong that nothing can escape it, even photons of light, hence the name "black" hole. It is believed that large black holes may exist at the center of our galaxy as well as others. The massive gravitational force that they exert would be enough to keep the body of the galaxy in orbit. A black hole consists of a few key things. The singularity is the center of the black hole, the point at which the matter is being compressed into a massive density. The event horizon is the point at which not even photons of light can escape the tremendous gravitational pull of the black hole. This makes it hard ...