Radioisotope Power Systems (RPS)

A labeled view showing the parts of a General Purpose Heat Source (GPHS) module.
An expanded diagram shows the multiple parts of a GPHS. The square individual GPHS modules contain cylinders of Plutoniaum fuel pellets and their safety shells.
Space nuclear power to explore the deepest, dustiest, darkest, and most distant regions of our solar system and beyond.
A selfie of the Mars Science Laboratory’s Curiosity rover shortly after landing in Gale Crated. The Multi-Mission Radioisotope Thermoelectric Generator...
A Mars rover is parked among the tire tracks it made on Mars in this composite image.
Each of NASA's Voyager probes are equipped with three radioisotope thermoelectric generators (RTGs), including the one shown here at NASA's...
Two black cylinders stacked on top of each other.
ORIGINAL CAPTION: At Launch Complex 40 on Cape Canaveral Air Station, one of three radioisotope thermoelectric generators (RTGs) is being...
A large black cylinder with fins on the side is inserted into the side of a spacecraft.