There are more living creatures in a shovel full of rich soil than human beings on the planet. Yet more is known about the dark side of the moon than about soil. These are just a few of the fascinating facts visitors can learn at the National Museum of Natural History’s new exhibition, “Dig it! The Secrets of Soil,” that opened at the Smithsonian’s National Museum of Natural History. The 460 square meter exhibition reveals the complex world of soil and how this ecosystem underfoot supports nearly every form of life on earth. “Dig It!” includes interactive displays, hands-on models, videos, and 54 soil monoliths. For further information click here.