EntityQ3491877· pop 8· linked from 9 articlesGeneral Purpose Heat SourceSign in to saveradioactive heat source for Radioisotope Thermoelectric Generators (RTG) or Stirling radioisotope generators (SRG)ConnectionsiridiumEntityNew HorizonsEntityCassini−HuygensEntityMars Science LaboratoryEntityradioisotope thermoelectric generatorEntityUlyssesEntityUnited States Department of EnergyEntityplutonium-238Entitymulti-mission radioisotope thermoelectric generatorEntityGalileoEntityOffice of Scientific and Technical InformationEntityStirling radioisotope generatorEntityGPHS-RTGEntityAdvanced Stirling Radioisotope GeneratorEntityCategoriesNuclear power in space