@brnestor17 asked 6 months ago.

How much longer can the sun continue to generate energy by nuclear reactions in its core?

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@khan answered 5 months ago.

The sun is about 4.5 billion years old. The sun was formed from the collapse of a giant molecular cloud. Most of the matter gathered in the center, while the rest flattened into an orbiting disk that became the solar system. The sun will burn for about another 5 billion years, then it will eventually expand to a red giant.

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@Sonal answered 6 months ago.

Physicists believe that nuclear fusion reactions in the sun’s core will last for about another 5 billion years before the sun’s energy output begins to decline. As the sun’s energy output declines, the earth will become too cold to support life, and will start to freeze over.

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@katetully answered 6 months ago.

The sun is about 4.5 billion years old. The sun was formed from the collapse of a giant molecular cloud. Most of the matter gathered in the center, while the rest flattened into an orbiting disk that became the solar system. The sun will burn for about another 5 billion years, then it will eventually expand to a red giant.

3f7118944a1db34.jpeg

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