Asian paper wasp nests take on a new verdant glow under ultraviolet light. Bernd Schöllhorn and Serge Berthier Scientist Bernd Schöllhorn was exploring a forest in northern Vietnam when he ...

UV light reveals the presence of optical ... This is the stuff they add to laundry detergents and copy paper to whiten the fibers’ appearance. By design, OBAs fluoresce brightly under UV light.