Pioneer Plaques

The Pioneer Plaques are scientific panels placed on the Pioneer 10 and Pioneer 11 spacecraft launched in the early 1970s, designed to communicate information about Earth's origin and humanity to potential extraterrestrial civilizations. Created by scientists Carl Sagan and Frank Drake, the plaques feature illustrations depicting a human figure, the solar system, and universal symbols such as the hydrogen atom. Their purpose is to serve as a greeting card from humanity, providing essential context about us and our place in the universe for any intelligent beings who might encounter the spacecraft in the distant future.