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Why does it take 20,000 years for light to reach the surface of the Sun from its core, but just 8 minutes to reach the surface of the Earth?
I've been reading about the Sun and I'm curious about something. Why does it take 20,000 years for light to reach the surface of the Sun from its core, but just 8 minutes to reach the surface of the Earth?
The Sun's core is extremely dense and hot, with temperatures of over 15 million degrees Celsius. The photons produced there are constantly scattering as they move outwards, which slows them down and causes the delay.