John/Sauter

redhousecanada:

divinebonghit:  The Pioneer plaques are a pair of gold-anodized aluminium 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 life. 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.

The symbols include:

• The hyperfine transition of neutral hydrogen, the most abundant element in the universe
• The relative position of the Sun to the center of the Galaxy and 14 pulsars with their periods denoted
• The Solar System with the trajectory of the Pioneer spacecraft
• Figures of a man and a woman
• The silhouette of the Pioneer spacecraft relative to the size of the humans

The Pioneer spacecraft were the first human-built objects to leave the Solar System.