Vibrant rainbow at Pu'uhonua o Honaunau National Park, Hawaii

Aren’t rainbows just magical? Well, we know they are, but there’s a lot of interesting science behind them. These colourful marvels appear when light strikes water droplets, creating a natural prism effect. When found out in the world, they are a product of refraction of the sun’s rays, so you will always find them opposite from the sun’s position in the sky.
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