All blue articles
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ResearchBlueberries’ blue is just skin deep, depending on structure not pigments
Non-spherical nanostructures explain the fruit’s colour
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ResearchMystery of why magic mushrooms go blue solved
Chemists reveal colourful indigo-like polymers that turn psychotropic mushrooms blue when cut
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PodcastPrussian blue
Laura Howes looks back to a time when feeling blue was a good thing - and wearing it was ‘bling’