How light meets our atmosphere
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The fiery magic of sunsets
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Skies of other worlds
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Through the human eye
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YOUR GOAL
Master of Why the sky is blue and sunsets are red
artiteacher Human Color Perception
Though violet light is scattering up high, Our eyes choose blue to paint the open sky.

artiteacher Long before modern physics, Leonardo da Vinci correctly guessed that sky color was caused by illuminated dust particles.

artiteacher Our eyes use three types of color receptors, which combine blue and green signals to perceive the sky as sky-blue.
Butterfly eyes: Some butterflies have fifteen different types of color receptors, allowing them to see ultraviolet sky colors.
Why doesn't Earth's sky look violet, even though violet light scatters more than blue light?
What is the main reason human eyes are poor at seeing the violet light in the sky?
When human eyes look at the sky, which two color signals combine with blue to make it look sky-blue?
Which famous Renaissance artist and scientist first experimented with illuminated mist to study sky color?

