1+Supernova

__ ** Supernova ** __ ** Basic Description ** A Supernova is the explosion of a super massive star. Supernovas are the death of stars much more massive than our sun. A supernova will occur when there is not enough fuel left for fusion. There are t wo types of supernovas. A type one super nova occurs in certain binary stars and one of those stars is a white dwarf. A binary star is a pair of stars that are close together and orbit each other. If the two stars come close enough to each other, the gra vitational pull of the white dwarf pulls mass from the larger sta  r. When the white dwarf reaches a mass of about 1.4 times of our sun, it will collapse and explode. A Type II supernova happens when a star begins to burn out and its core will quickly collapse. A great amount of energy is suddenly released in the form of neutrinos and electromagnetic radiation. This energy will cause the star to erupt into a supernova. The final result of a supernova is a neutron star, a black hole, or it may just become a nebula and start its life over again.

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 * Facts :**
 * **//A supernova can be a billion times as bright as the sun.//**
 * **//Supernovas may shine for weeks and simetimes even more.//**
 * **//The core temperature may rise to over 100 billion degrees when iron atoms are crushed together.//**
 * **// At it's peak point, a supernova can shine as bright as the galaxy where it occurs. //**
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