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Moonbows
Moonbows
DARKFOXELIXIR/SHUTTERSTOCK

Much like rainbows, these colourful nocturnal arches occur when light (from the moon, in this case) reflects and refracts off water droplets in the sky. But moonbows are much more rare than rainbows – the natural phenomenon happens only when the moon is very low, the sky is dark, and rain is falling opposite the moon.