Tags: space, apollo, missions, scientific, experiments, powered, radioisotope, thermoelectric, generators, astronaut, alan, bean, lunar, module, pilot, transferring, kilograms, plutonium-
Tags: space, curiositys, plutonium-, dioxide, glowing, graphite, container, heat, decay, isotope, converted, electric, voltage, thermocouples, providing, constant, power, seasons, night