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Radioisotope Power Systems
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A single RHU passively radiates about one watt of heat. When placed carefully aboard a spacecraft or inside a rover, the heat compensates for cold temperatures in beyond Earth.
What are Radioisotope Heater Units (RHUs)?
National Academies of Sciences, Engineering, and Medicine 2022. Origins, Worlds, and Life: A Decadal Strategy for Planetary Science and Astrobiology 2023-2032
Origins, Worlds, and Life: A Decadal Strategy for Planetary Science and Astrobiology 2023-2032
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 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 objective of this study1 is to discuss a sustainable strategy and present findings for the provisioning of safe, reliable, and affordable nuclear power systems that enable NASA missions.
Nuclear Power Assessment Study - Final Report
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NASA selected three winners out of nine finalists in the second annual Power to Explore Challenge, a national competition for elementary through high school students featuring the power of radioisotopes for space exploration.
NASA Announces Student Winners of Power to Explore Challenge
NASA selected 9 finalists out of the 45 semi-finalists student essays in the Power to Explore Challenge, a national competition for K-12 students featuring the enabling power of radioisotopes.
NASA Names Finalists of the Power to Explore Challenge
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
