Cold Cathode Gauge Experiment
Part of the Apollo Lunar Surface Experiments Package (ALSEP) / From Wikipedia, the free encyclopedia
The Cold Cathode Gauge Experiment, also known as the Lunar Atmosphere Detector, was a scientific package that flew on board Apollo 12, Apollo 13, Apollo 14, and Apollo 15. The goal of the experiment was to measure the density of the Moon's tenuous atmosphere, but not its composition.