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#PPOD: Pictured, behind this darker cloud, is a pileus iridescent cloud, a group of water droplets that have a uniformly similar size and so together diffract different colors of sunlight by different amounts. T Also captured were unusual cloud ripples above the pileus cloud. The formation of a rare pileus cloud capping a common cumulus cloud is an indication that the lower cloud is expanding upward and might well develop into a storm. Credit: Jiaqi Sun

#science #scicomm #weather #photography

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Following the German @ZDF and @tagesschau, the BBC is giving Mastodon a go through their own server. You can now follow the official @BBCRadio4 and a few other accounts on social.bbc!

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