• Moiya McTier

Astronomy Fun Fact #5

Every star -- everything that emits light, really -- has its own spectrum, which tells you how energetic its light is at different wavelengths. Our Sun is most energetic at a wavelength of about 500nm, which corresponds to the color green. This has some interesting consequences for life here on Earth. For example, this is why most plants are green. Plants have chosen quantity over quality by reflecting the high-energy green photons and absorbing all the other abundant but low-energy photons.


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