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There are many different types of stars. Our Sun is a small dwarf star. When this type of star dies it simply goes out and the outer atmosphere blows away and it becomes a nebula (cloud of gas) surrounding a rocky core. However when a massive star, many times bigger than the sun dies, it collapses in on itself. As things compress they gain energy as the kenetic energy (remember energy cannot be created or destroyed) is converted into heat energy. This heat creates huge thermal pressure and the compressed star explodes in a supernova. The resulting mass that is left collapses again and into a very dense object called a Neutron Star. If the star was big enough and there is enough mass that collapses the gravitational field is so much that it crushes atoms out of existance. This is a black hole.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agoBlackholes are made from collapsed stars that went supernova. So before a black hole there was a supernova.
Wiki User
∙ 11y agoNo. Black holes can occur when a star is at the end of its life (i.e. when it runs out of fuel and begins to collapse into itself), but they do not form before a star is formed.
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