Pioneer Plaque: Commemorative Plaque, Pioneer 10, Pioneer 11, Spacecraft, Pictogram, Human, Symbol, Information, Cosmic Dust, Voyager Golden Record, Voyager Program, Jet Propulsion Laboratory - Softcover

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Pioneer plaques are a pair of gold anodized aluminum plaques which were placed on board the 1972 Pioneer 10 and 1973 Pioneer 11 spacecraft, featuring a pictorial message, in case either Pioneer 10 or 11 are intercepted by extraterrestrial beings. The plaques show the nude figures of a human male and female along with several symbols that are designed to provide information about the origin of the spacecraft.