What Makes Some Stars Explode in a Supernova?

Imagine a star is like a giant balloon filled with hot gas. When it runs out of fuel, the balloon can't keep holding itself up anymore, and then it explodes! This big explosion is called a supernova. It lights up space like a fireworks show.

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Examples

A candle burns out, then it explodes in a flash of light.
Imagine a balloon filled with hot air bursting into the sky, sending confetti flying.
A firecracker goes off, bright and loud!

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Categories: Space · supernova· star life cycle· astronomy