What was the baryon density of the universe when the temperature was equal to the temperature of the Sun's center? Compare your answer to the average density of the Sun's center (p = 1.5e3 kg/m³). Why do you suppose nuclear fusion didn't happen throughout the universe at this epoch?

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What was the baryon density of the universe when the temperature was equal to the
temperature of the Sun's center? Compare your answer to the average density of the
Sun's center (p = 1.5e3 kg/m³). Why do you suppose nuclear fusion didn't happen
throughout the universe at this epoch?
Transcribed Image Text:What was the baryon density of the universe when the temperature was equal to the temperature of the Sun's center? Compare your answer to the average density of the Sun's center (p = 1.5e3 kg/m³). Why do you suppose nuclear fusion didn't happen throughout the universe at this epoch?
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