How Do Stars Stay So Bright for So Long?

Stars are like giant, glowing fireballs in the sky. They keep shining because they have a super powerful energy source inside them, nuclear fusion! Think of it like a never-ending campfire that keeps burning for millions of years.

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A star is like a giant campfire that burns for millions of years because it has enough fuel to keep going.
Imagine a fire in your backyard, the more wood you add, the longer it burns. Stars have an endless supply of hydrogen acting as their wood.
The Sun is like a huge, glowing ball of gas burning nonstop, we just don’t see all the smoke and embers.

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Categories: Space · stars,nuclear fusion,space science