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Supernova ความหมาย คือ the death explosion of a massive star, resulting in a sharp increase in brightness followed by a gradual fading. At peak light output, supernova explosions can outshine a galaxy. The outer layers of the exploding star are blasted out in a radioactive cloud. This expanding cloud, visible long after the initial explosion fades from view, forms a supernova remnant. Supernovae are the most powerful forces in the universe. All of the heavy elements were created in supernova explosions. |
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