More background on the device: https://en.m.wikipedia.org/wiki/Apollo_Lunar_Surface_Experiments_Package https://en.m.wikipedia.org/wiki/Apollo_Lunar_Surface_Ex

More background on the device: https://en.m.wikipedia.org/wiki/Apollo_Lunar_Surface_Experiments_Package https://en.m.wikipedia.org/wiki/Apollo_Lunar_Surface_Experim... Apparently just the plutonium in the power supply of only one of these units would cost today some 20 million USD. https://news.ycombinator.com/item?id=17492902 https://news.ycombinator.com/item?id=17492902