Radioisotope Power Systems
Non-NASA RPS Missions Fleet Chart
Non-NASA RPS Missions Fleet Chart
An illustration of Cassini at Saturn.
Illustration of Cassini at Saturn
Dragonfly is a NASA rotorcraft lander mission that will explore the chemistry and habitability of Saturn's largest moon, Titan.
RPS 60th: Dragonfly Mission to Titan Shareable
This picture of asteroid Gaspra is a mosaic of two images taken by the Galileo spacecraft in 1991, during the first close approach of a spacecraft to an asteroid.
First Close Approach to an Asteroid
An illustration of the planned Dragonfly spacecraft.
Artist Concept of the planned Dragonfly spacecraft
Asteroid Ida and its moon Dactyl. Scientists found the moon - the first discovered orbiting and asteroid - when the Galileo spacecraft flew past Ida in 1993.
Ida and Dactyl
Apollo Lunar Surface Experiment Package (ALSEP) deployed on the lunar surface
ALSEP Deployed on the Lunar Surface
This series of images from NASA's Cassini spacecraft shows the development of the largest storm seen on the planet since 1990.
Chronicling Saturn's Northern Storm
An illustration of NASA's Pioneer 11 flying by Jupiter.
Pioneer 11 at Jupiter (Illustration)
This self-portrait of NASA's Mars rover Curiosity combines dozens of exposures taken by the rover's Mars Hand Lens Imager (MAHLI) during the 177th Martian day, or sol, of Curiosity's work on Mars (...
Curiosity Rover Self-Portrait
The fuel insertion on F2, the MMRTG that would power NASA's Curiosity Rover.
Fuel Insertion on F2 (Curiosity Rover's MMRTG)
There are no gas stations or mechanics in deep space. So, if you want the power to perform science in the deep, dark frontiers of our solar system, you must have an engine that is reliable for the...
Testing Maintenance-Free Engines That Power Science in Deep Space
An American Superconductor free-piston Stirling Convertor.
American Superconductor Free-Piston Stirling Convertor
NASA's Saturn-bound Cassini spacecraft looked back to see Jupiter as a thinning crescent 17 days after its closest approach to the giant planet.
A Farewell to Jupiter
An illustration of the three topics and the photos of the winners of the 2019-2020 NASA Scientist for a Day Essay Contest
Winners of the 2019-2020 Scientist for a Day Contest
Humanity's most sophisticated rover launched at 7:50 a.m. EDT on July 30th on a United Launch Alliance Atlas V rocket from Space Launch Complex 41 at Cape Canaveral Air Force Station in Florida.
Mars Perseverance Launches
Illustration of Cassini flyng by the planet Venus.
Cassini Fly Past Venus - Illustration
An illustration of the DRPS concepts shows convertors and proposed systems.
DRPS Concepts - Illustration
This image shows the closest face-on view of Neptune's Great Dark Spot captured by the Voyager 2 spacecraft during the only visit to the most distant of the eight major planets in our solar system.
Neptune's Great Dark Spot
The boulder-strewn field of red rocks reaches to the horizon nearly two miles from Viking 2 on Mars' Utopian Plain.
Viking 2 at Utopia Planitia
A color image of Arrakoth taken by the New Horizons spacecraft.
Enhanced-Color Composite Image of Kuiper Belt Object Arrokoth (2014 MU69)
DRPS illustration of the Flexure Isotope Stirling Convertor system from American Superconductor.
Flexure Isotope Stirling Convertor System (illustration)
This illustration lists RHU-heated and RTG-powered spacecraft and the many moons and planets they have visited.
60th Anniversary: NASA's RHU-Heated and RTG-Powered Spacecraft
MMRTG Dragonfly Mission: An illustration of the planned Dragonfly mission.
Illustration of the Planned Dragonfly Mission
The spinning vortex of Saturn's north polar storm resembles a deep red rose of giant proportions surrounded by green foliage in this false-color image from NASA's Cassini spacecraft.
Saturn: The Rose
The electricity for NASA's Mars 2020 rover is provided by a power system called a Multi-Mission Radioisotope Thermoelectric Generator, or MMRTG. The MMRTG will be inserted into the aft end of the r...
Power for Mars 2020
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Six decades after the launch of the first nuclear-powered space mission, Transit IV-A, NASA is embarking on a bold future of human exploration and scientific discovery.
After 60 Years, Nuclear Power for Spaceflight is Still Tried and True
This Sources Sought Notice seeks capabilities, innovative ideas for new system development, fiscal estimates, and potential collaboration that could lead to an industry/Government contract for development of a Dynamic Radioisotope Power System (DRPS) for use on the moon with desired extensibility to other solar system destinations.
Dynamic Radioisotope Power Systems Sources Sought Notice has been Released
Humanity's first and (so far) last visit to the outermost giant planet in our solar system was a monumental event for scientists and the public alike.
Power for Decades: Radioisotope Generator Helps Voyager 2 Keep Exploring 30 Years After Neptune Flyby
Two NASA scientists studying next-generation thermoelectric materials and converters for applications to radioisotope power systems have been awarded the 2019 Outstanding Achievement Award by the International Thermoelectric Society for their decades-long leadership and contributions to the field.
International Thermoelectric Society Honors Two NASA Scientists for Contributions to Advancements in Radioisotope Power Technology
NASA gives the go-ahead to fuel the Mars 2020 rover's Multi-Mission Radioisotope Thermoelectric Generator, which will power rover and help keep it warm while exploring Mars.
Fueling of NASA's Mars 2020 Rover Power System Begins
NASA has announced that our next destination in the solar system is the unique, richly organic world Titan.
NASA's Dragonfly Will Fly Around Titan Looking for Origins, Signs of Life