The scattering of sunlight by molecules in the atmosphere. The amount of scattering depends on the wavelength of the light. The sky is blue because of the relatively large amount of short-wavelength light scattered by the atmosphere.

RAYLEIGH SCATTERING: "Rayleigh scattering explains why the sky is not green."
Cite this page: N., Pam M.S., "RAYLEIGH SCATTERING," in PsychologyDictionary.org, April 28, 2013, https://psychologydictionary.org/rayleigh-scattering/ (accessed March 4, 2021).