Have you ever wondered what a black hole is or what happens if you enter one??? Well, now is your chance to check them out. There are many theories about black holes and whether or not they are real. But black holes do exist. Karl Schwarzschild is the founder and theoretical master of black holes. Black holes are mainly found inside the Milky Way. There are many different types of galaxies and many different types of black holes. A normal galaxy contains gas and stars. Black holes are called stars, and nothing light or any kind of matter can escape the gravitational pull of that black hole. Black holes are the last in the line after neutron stars and white dwarfs. Black holes are approximately 10 to 15 times more massive than the Sun itself. When the black hole reaches its final "stage", it explodes to become a supernova. Most of the debris is also left behind and fusion can no longer take place. The black hole will collapse or close in on itself if there is no force opposing gravity. Nuclear fusion creates energy and pressure with the gravity of the black hole. Thus, without force, the black hole reduces to zero volume. Black holes attract all kinds of matter. Black holes are small, but you wouldn't think they would be. They may be small, but they have the energy to suck things into themselves. The usual diameter of an ordinary black hole is 4 times the diameter of the sun. As they are small, distant and dark, they could not be seen or observed. Now if you get too close you might die. Black holes therefore remain a mystery to be solved. Black holes have enormous weight and they grow larger as they suck in/absorb matter. Black holes are like the siblings of wormholes. Black...... middle of paper ...... hole. The opening of a black hole is called the event horizon. And once something gets inside, it stays trapped inside forever. Light, matter and other things cannot escape. The radius of each event horizon is called the Schwarzschild radius, named after Karl Schwarzschild, the person who led to the theory of black holes. A black hole occurs when there is a strong gravitational pull and there is some time delay. The fact that light can't escape seems quite complicated. Why ? Because when you think about it, light not being able to escape from the black hole doesn't seem very realistic. Black holes are created from the overdensity of a collapsing star. This overdensity is what creates the whole black hole part, the concept of the black hole sucking things in and eventually destroying them without a trace, it's the part that makes it seem weird..