Stars look like they're blinking because the air in Earth's atmosphere moves around. Imagine you're looking at a light through a wobbly glass, it seems to flicker, right? That's what happens when starlight passes through our atmosphere on its way down to us.
Examples
- A firefly flickering in the dark
- A flashlight beam shining through a moving curtain
- A candle flame dancing as wind moves around it
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See also
- What If the Moon Was Made of Cheese?
- What Causes a Solar Eclipse Exactly?
- What's the Difference Between a Comet and an Asteroid?
- What If We Could Live on Mars?
- Why Do We See the Same Side of the Moon?
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Categories: Space · stars,astronomy,atmosphere