ALSEP in Action

An Apollo astronaut is seen working on the lunar surface, setting up scientific instruments as part of the Apollo Lunar Surface Experiments Package (ALSEP). Various devices, including reflective gold foil equipment and experiment housings, are spread out on the gray regolith. The astronaut’s shadow stretches across the surface, emphasizing the stark lighting of the Moon. These experiments were vital for studying lunar geology, seismic activity, and the Moon’s environment.