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Why does the sun never goes off?

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Anonymous

15y ago
Updated: 8/18/2019

The sun is our local star. It is a giant fusion engine, and it is "burning" hydrogen and fusing it into helium at an enormous rate. But as long as it has fuel to drive the fusion process that is the sun's life, it will burn fuel continuously. It has been burning for about 4.5 billion years, and it has about that much more time left.

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Wiki User

15y ago

What else can I help you with?