Researchers at Penn State University have found out a potential key to invisibility technology through the biochemistry of leafhoppers, a common backyard insect. Leafhoppers naturally secrete a substance made up of particles called brochosomes and coat themselves with it. The Penn State research team, led by Tak-Sing Wong, created a synthetic version of this substance, finding that the hollow particles absorb just enough UV to reduce light reflection by up to 94%. Although leafhoppers most likely use this method to avoid predators, this discovery could help humans create invisibility cloaking devices, advanced sunscreens, and more.