Description

In 1966, a group of researchers developed a set of lunar experiments to accompany the Apollo missions. One of these was the Passive Seismic Experiment (PSE) to understand lunar seismic activity.

PSE materials first went to space with Apollo 11, but a solar panel failure cut that experiment short. MIT’s Center for Space Research developed a solar cell that was likely meant to power Apollo 13’s PSE instruments, though that mission never landed on the moon because of an onboard explosion.