Here’s a story about rainbow-coloured clouds, shock waves, and the boundary between science and superstition. But this one is without flying ponies.

On May 12, 2008 in Sichuan province, China, some beautiful rainbow-coloured clouds appeared in the sky, causing many people to turn their heads, and several amateur film makers to shoot videos which would appear on YouTube.

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I smiled at Maud Pie, wanting to start a conversation and make friends. “So... what is it that you do exactly, on your rock science research trips?”

Maud thought over the question before answering accurately. “We drill holes in the ground, and extract a core sample.”

“That sounds interesting...”

“It's boring.”

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