[Lee Stewart]

Counterfeit money is being busted thanks to butterflies. A project called NOtES, from researchers at Simon Fraser University, studied butterfly wings and their iridescence of the Costa Rican morpho butterfly. They created a technology using nanoscale light-interfering structures to create an anti-counterfeiting stamp. It’s more difficult to crack than a hologram and can be “printed” not only on bank notes, but on a whole range of other objects, too.