Radioisotope Power Systems
GPHS Module (Display model)
A display model of the GPHS module.
Non-NASA RPS Missions Fleet Chart
Non-NASA RPS Missions Fleet Chart
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 marvelous panoramic view was created by combining a total of 165 images taken by the Cassini wide-angle camera over nearly three hours on Sept. 15, 2006.
In Saturn's Shadow
Technicians at NASA's Kennedy Space Center in Florida perform a fit check between the Mars 2020 Perseverance rover and its Multi-Mission Radioisotope Thermoelectric Generator on April 16-17, 2020.
Fitting the Rover's Power System
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
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
The twin Voyager 1 and 2 spacecraft are exploring where nothing from Earth has flown before.
RPS 60th: Voyager Shareable
Voyager 2 was launched on August 20, 1977, from the NASA Kennedy Space Center at Cape Canaveral in Florida, propelled into space on a Titan/Centaur rocket.
Voyager 2 Launch
An illustration of NASA's Pioneer 11 flying by Jupiter.
Pioneer 11 at Jupiter (Illustration)
A montage of New Horizons images of Jupiter and its volcanic moon Io, taken during the spacecraft's Jupiter flyby in early 2007.
This image of the parachute that helped deliver NASA’s Perseverance Mars rover to the Martian surface was taken by the rover’s Mastcam-Z instrument on April 6, 2022, the 401st Martian day, or sol, ...
Perseverance Views Its Parachute
Scientist for a Day is an essay contest that challenges students in grades 5-12 to think like scientists.
Scientist for a Day Flyer - 2020-21
This image shows the Multi-Mission Radioisotope Thermoelectric Generator for NASA'S Mars 2020 Perseverance rover during a fit check at the Kennedy Space Center in Florida on April 16-17, 2020.
Testing Rover Power System
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
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
NASA's Cassini spacecraft has delivered a glorious view of Saturn, taken while the spacecraft was in Saturn's shadow. The cameras were turned toward Saturn and the sun so that the planet and rings ...
A Splendor Seldom Seen
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
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
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
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
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
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
Reddish spots and shallow pits pepper the enigmatic ridged surface of Jupiter's moon Europa in this view from NASA's Galileo spacecraft.
Ruddy "Freckles" on Europa
A stack of GPHS units ready for insertion on F2, the MMRTG that would power the Curiosity Rover.
GPHS Units Ready for Insertion
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
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NASA has officially launched its third Power to Explore Student Challenge.
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A Radioisotope Thermoelectric Generator (RTG) has powered the rover 24-7 for 1,000 days of science and exploration.
Perseverance Rover Deciphers Ancient History of Martian Lake
This shipment of 0.5 kilograms (a little over 1 pound) of new heat source plutonium oxide is the largest since the domestic restart of plutonium-238 production over a decade ago.
NASA One Step Closer to Fueling Space Missions with Plutonium-238
Three student winners of NASA’s Power to Explore Challenge journeyed behind the scenes at NASA's Glenn Research Center after drafting the top papers in the national STEM essay contest.
STEM Essay Contest Winners Earn Close-Encounter Visit to NASA
NASA’s New Horizons spacecraft plans to observe Uranus and Neptune from its location far out in the outer solar system this fall.
All Eyes on the Ice Giants
The question of how Saturn developed its brilliant rings is still very much an engaging and open question.
All That Glitters: Saturn's Rings Estimated to Be "Young"