26K views · 1.3K reactions | This scene captures a rare atmospheric phenomenon: an anvil-shaped cumulonimbus cloud crowned with a thin, iridescent layer. The colors appear when sunlight scatters through microscopic ice crystals at the cloud’s upper boundary, producing a spectrum similar to a rainbow but formed by diffraction, not rain. What looks dramatic is simply the physics of light interacting with a rapidly rising storm column at sunset. | AstroNature | Facebook