Earth scienceColorartistchemistry science-364-6439-in-search-of-blue In search of blue Series of short stories on the rarity of blue pigments. New tools are aiding the age-old quest for the rarest of pigments. … Chrysanthemums, coronations, tulips—none of them naturally comes in blue. … Decades of breeding have yielded roses in every shade of yellow, pink, and red, but never blue ones. By Kai Kupferschmidt May 3rd, 2019 Previous Next