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Radioisotope Power Systems (RPS)

Radioisotope Power for Spacecraft
3 min read

NASA's Curiosity rover on Mars and other NASA spacecraft that explore some of the most distant, darkest and dustiest places…

How NASA’s Perseverance Is Helping Prepare Astronauts for Mars
6 min read

The rover carries several swatches of spacesuit materials, and scientists are assessing how they’ve held up after four years on…

Article
Power to Explore Student Essay Challenge 2025 Trailer
2 min read

The annual NASA writing challenge invites K-12th grade students in the United States to learn about Radioisotope Power Systems and…

Radioisotope Heater Unit Pull-Apart Animation
1 min read

Animation of the components of a radioisotope heater unit (RHU) component.

Radioisotope Power Systems – Power to Explore
1 min read

Space nuclear power to explore the deepest, dustiest, darkest, and most distant regions of our solar system and beyond.

NASA Reveals Semifinalists of Power to Explore Challenge
4 min read

NASA has selected the 45 semifinalists of the Power to Explore Challenge, a national competition for K-12 students featuring the…

Article
Radioisotope Power Systems General Purpose Heat Source Pull-Apart Animation
2 min read

General Purpose Heat Source module, or GPHS is the essential building block for the radioisotope generators used by some NASA…

Radioisotope Heater Unit Pull-Apart Animation
1 min read

Radioisotope heater units (RHUs) help bring dependable heat to spacecraft. One RHU generates about one watt of heat energy from…