A supernova is when a big star explodes. Imagine blowing up a balloon full of air, that's like the inside of a star. When it gets too big, it pops in a bright flash. This happens because the star runs out of fuel and can't hold itself together anymore. A big explosion throws off energy, light, and even some pieces of the star into space.
Examples
- Blowing out birthday candles with one big puff, that’s a supernova in action.
- Imagine a giant firecracker going off right next to you, that’s how bright a supernova can be.
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See also
- What is supernova?
- Less Than Five - What is a Supernova?
- What If Betelgeuse Exploded Right Now?
- What Causes the ‘Ring of Fire’ Eclipse and How Is It Different from a Total Eclipse?
- What Causes Black Holes to Glow?