Why Are Some Stars Blue, Others Red?

Imagine stars like hot lava, the hotter ones are blue, like a fire that’s really bright and cool. The cooler ones are red, like a fire that’s almost going out. Stars change colors as they grow old or burn bright.

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Examples

A red star is like an old person, it’s slow, cool, and has been around a long time.
A blue star is like a teenager, full of energy, burning bright, but not going to last as long.
When you look at the sky on a cold winter night, the stars that look red are actually glowing with gentle warmth.

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Categories: Space · Stars,Color,Temperature,Astronomy