Science s Why are some flowers so pretty? Scientists explain.

The Queen of the Night tulip's iridescent sheen is caused by cellulose that rearranges based on factors like humidity and temperature.

(S. Vignolini/American Institute of Physics)

People have long been captivated by exotic plants like Queen of the Night, a tulip whose iridescent shimmer has been likened by scientists to “moonlight glittering off regal jewels.”

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