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On a dark clear night, you can see a sky full of stars. But what is a star? A star is a giant ball of hot, glowing gas. Stars are so massive that they would collapse under the pressure of gravity if not for the fact that their cores are fusion reactors that create a balancing force for as long as they have fuel. What happens when they run out of fuel? Well, that depends on the size of the star. Learn more about stars in this fun, educational video. FreeSchool is great for kids!

Like this video if you want to see more videos about ASTRONOMY!

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