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Writer's pictureMoiya McTier

Astronomy Fun Fact #14

It takes photons (particles of light) about 8 minutes to get from the Sun's surface to the Earth. But photons starting at the core of the Sun can take up to 100,000 YEARS to reach the solar surface because the Sun is so dense. Those particles can only move a few centimeters before they hit something and have to redirect their path.

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Moiya McTier
Moiya McTier
May 06, 2019

Ummmm... kind of close? Aside from scale, the salient differences are that

1. whiffle balls have holes that the sand can escape through, but photons can escape anywhere on the solar surface

2. there are constantly more photons being produced in the core of the Sun, even though more sand isn't miraculously appearing in the middle of the whiffle ball

3. the photon that start out at the core isn't actually the photon that leaves the solar surface because photons get absorbed and re-emitted in random directions. This part is complicated and in some ways very philosophical

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mylesbkeating
May 02, 2019

Bear with me... how close is it to think of the this as the sun is a whiffle ball with sand particles (photons) shaking around trying to escape?

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