• English: A partial view of the Apollo 16 Apollo Lunar Surface Experiments Package (ALSEP) in deployed configuration on the lunar surface as photographed during the mission's first extravehicular activity (EVA-1), on April 21, 1972. The Passive Seismic Experiment (PSE) is in the foreground center; Central Station (C/S) is in center background, with the Radioisotope Thermoelectric Generator (RTG) to the left. One of the anchor flags for the Active Seismic Experiment (ASE) is at right. Taken by Charles Duke, Apollo 16 astronaut

• Français : Sismometre passif de la mission Apollo 16

Source: https://www.hq.nasa.gov/alsj/a16/AS16-113-18347.jpg

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