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Crepuscular Rays, Mexico City
Image by J. Rudo, 2026
 
The phenomenon of crepuscular rays are columns of sunlight that appear to spread from a single point in the sky, creating a dramatic effect when clouds or distant mountains obstruct the sun and allow light to pass through gaps. The beams become visible through scattering by atmospheric particles such as dust, mist, and smoke, and they appear to diverge due to perspective even though they remain parallel.