Radioisotope Power Systems
Multi-Hundred Watt RTG
A Multi-Hundred Watt RTG.
Neptune's largest moon Triton, is seen in this mosaic of images captured by Voyager 2 during the only visit thus far to the Neptune system.
Voyager's view of Triton
A mosaic was created from two high-resolution images that were captured by the narrow-angle camera when NASA's Cassini spacecraft flew past Enceladus
Geysers of Enceladus
This color image, acquired by the Galileo spacecraft in 1997 on its ninth orbit around Jupiter, shows two volcanic plumes erupting on Io.
Active Volcanic Plumes on Io
The Apollo Lunar Surface Experiment Package, ALSEP, was a collection of geophysical instruments designed to continue to monitor the environment of each Apollo landing site.
RPS 60th: ALSEP Shareable
At equinox, the shadows of the planet's expansive rings are compressed into a single, narrow band cast onto the planet as seen in this mosaic.
Changing Seasons on Saturn
Part of NASA's Mars Science Laboratory mission, Curiosity launched Nov. 26, 2011 and landed on Mars at 10:32 p.m. PDT on Aug. 5, 2012.
RPS 60th: Mars Curiosity Rover Shareable
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
DRPS illustration of the Flexure Isotope Stirling Convertor system from American Superconductor.
Flexure Isotope Stirling Convertor System (illustration)
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
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 montage shows a series of views from the European Space Agency's Huygens probe at four different altitudes as it descended to the surface of Saturn's moon Titan in 2005.
Huygens's Descent to Titan
Thermal energy researchers Wayne Wong (left) and Scott Wilson, inspect a Stirling power convertor that has been running continuously for 14-years.
Inspecting a Stirling Power Convertor
-- Updated as of March 2021 Radioisotope Power Systems (RPS) have provided the power to explore, discover, and understand our solar system and beyond. This graphic shows the type and destinations ...
Flyby, Orbit, Rove, and Land
NASA’s Perseverance Mars rover, including its Multi-Mission Radioisotope Thermoelectric Generator, is shown on sol 108 of its mission in this image.
NASA's Perseverance Near the Rim of Adziilii Crater
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
New Horizons launched on Jan. 19, 2006, and it conducted a six-month-long reconnaissance flyby study of Pluto and its moons in 2015, culminating with Pluto closest approach on July 14, 2015.
RPS 60th: New Horizons Shareable
NASA's Perseverance Mars rover looks back at its wheel tracks on March 17, 2022, the 381st Martian day, or sol, of the mission.
Perseverance Looks Back at Wheel Tracks
Voyager 1 took this photo of Jupiter and two of its satellites (Io at left and Europa at right) as it approached its flyby encounter with the planet in 1979.
Jupiter, Io and Europa
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
This image is the first panoramic view of the Martian surface, taken by the Viking 1 lander.
First Mars Panorama
Graphite Impact Shell (GIS).
Graphite Impact Shell (GIS)
A lightweight radioisotope heater unit
Lightweight Radioisotope Heater Unit
This is the first 360-degree panorama taken by Mastcam-Z, a zoomable pair of cameras aboard NASA’s Perseverance Mars rover. The panorama was stitched together on Earth from 142 individual images ta...
Mastcam-Z's First 360-Degree Panorama
Astronaut Alan Bean prepares the RTG to be fueled.
Fueling the RTG on the Moon (image 1)
Huygens probe following its successful descent to Saturn's smog-enshrouded moon, Titan.
First Color View of Titan's Surface
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NASA has selected 45 semi-finalist of the Power to Explore Challenge, a national competition for K-12 students featuring the enabling power of radioisotopes.
NASA Names Semi-Finalists of the Power to Explore Challenge
NASA’s second Power to Explore Challenge inspires learning about how radioisotope power systems help us explore the extremes of our solar system. Credit: NASA/Gayle Dibiasio (ATS)
NASA Launches Power to Explore Challenge for K-12 Students
Radioisotope Power Systems (RPS) have provided the power to explore some of the deepest, darkest, and most distant destinations in the solar system and beyond. Voyager 1 is NASA’s furthest traveled spacecraft, and its science mission has been enabled by RPS for 45 years.
NASA Celebrates 45 Years of Voyager 1, Enabled by Radioisotope Power
Celebrating 45 years of Voyager I and II in space
Voyager, NASA's Longest-Lived Mission, Logs 45 Years in Space
A team of scientists and engineers sponsored by NASA’s Radioisotope Power Systems Program won the American Nuclear Society’s 2022 Best Radioisotope Power Paper award. The society made the announcement following the Nuclear and Emerging Technologies for Space (NETS) conference, held May 8-12 in Cleveland.
Silicon-Germanium Unicouple Paper Wins Best Radioisotope Power Paper Award
NASA used augmented reality to give STEM students a real-world mission planning experience.
NASA Uses Technology to Give Students an Out-of-this-World Experience