Environmental Graffiti

The Elusive Beauty of Lunar Rainbows

When the moon rises near its fullest, and barely a cloud veils its face, certain locations on earth treat observers to the scarcely seen light phenomenon known as the lunar rainbow, or moonbow. Like daytime-occurring rainbows, moonbows are formed when rays of light bounce off water droplets suspended in the air – the vapour of a raincloud, say, or the spray from a thundering waterfall.

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