Trade Catalogue of Everything

The Trade Catalogue of Everything is a digital file that lists everything and anything—land, water, air, plants, animals, fragments of nature, but also the products of human culture, industry, invention and human know-how—that may be of interest to alien life. Housed in a gold USB flash memory device, the catalogue is intended for travel aboard a probe headed toward the stars beyond our solar system. Following in the footsteps of the Pioneer Plaque (1972–1973) and The Golden Record (1977), which introduced human civilization to extraterrestrials, the catalogue is an invitation for spacefaring civilizations to make contact with Earth and begin a trade relationship.