Interesting and Cool Things to Know

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The surface temperature of the Sun is about 5500 degrees Celsius. What do you think the core temperature is?
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What is the average diameter of the Sun?
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We call Mars the "Red Planet", but its sunsets are actually bluish, whereas sunsets on our blue planet Earth look red.
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If male and female tigers claim the same prey, males typically back off. This differs tigers from lion males, who use their great power and drive weak females off.
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The temperature in the Sun's core is about 15 million degrees Celsius, while on the surface it is only 5500°C. The core is much hotter because it is where nuclear fusion reactions take place.
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