What is Radioisotope thermoelectric generator?
A '''radioisotope thermoelectric generator''' (or RTG) is a type of [[machine]] that uses heat from [[radioactive decay]] to make electricity. The RTG, powered by a [[radioisotope heater unit]], is used in [[satellites]] and sometimes in other remote unmanned systems. {{tech-stub}} [[Category:Electricity]] [[Category:Machines]] [[Category:Nuclear energy]]