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Supernova - Wikipedia, the free encyclopedia
A supernova (plural supernovae) is a stellar explosion that is more energetic than a nova. Supernovae are extremely luminous and cause a burst of radiation that often briefly ...
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Supernova
One of the most energetic explosive events known is a supernova. These occur at the end of a star's lifetime, when its nuclear fuel is exhausted and it is no longer supported ...
supernova: Definition from Answers.com
supernova n. , pl. , -vae , or -vas . A rare celestial phenomenon involving the explosion of most of the material in a star, resulting in an
Supernovae
Before 1680, the two most recent supernova explosions were observed by the great astronomers Tycho and Kepler in 1572 and 1604 respectively. In 1987 there was a supernova explosion ...
NASA - Supernova
A supernova is an exploding star that can become billions of times as bright as the sun before gradually fading from view. At its maximum brightness, the exploded star may ...
supernova Facts, information, pictures | Encyclopedia.com articles ...
supernova a massive star in the latter stages of stellar evolution that suddenly contracts and then explodes, increasing its energy output as much...
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