★ The energy in the sunlight we see today started out in the core of the Sun 30,000 years ago – it spent most of this time passing through the dense atoms that make the sun(going back and forth) and just 8 minutes to reach us once it had left the Sun !
★ The temperature at the core of the sun is 13,600,000 kelvins.
★ All of the energy produced by fusion in the core must travel through many successive layers to the solar photosphere before it escapes into space as sunlight or kinetic energy of particles.
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