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Runaway Universe
Birth of a Supernova
Type II
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Type II (1)

Imagine a star with a mass 10 times greater than the mass of our sun. Stars this large have huge furnaces that burn their fuel quickly: this one will begin to exhaust its fuel in about 35 million years. By comparison, a star the size of our sun can burn for 10 billion years before running out of fuel.

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