Abstract
Radioisotope Power System (RPS) research and development is vital to a variety of future NASA space science and exploration missions. The objectives of NASA’s current RPS activities are threefold: (1) develop new radioisotope power sources for missions that would launch by the end of the decade; (2) advance promising power conversion technologies to increase the specific power and performance of future RPS units; and (3) assess and facilitate the use of advanced RPS technologies for new mission applications. The program consists of two flight unit development projects, a set of 10 competitively‐selected research and development efforts in power conversion technology, focused research tasks on thermoelectric and Stirling energy conversion, and system analyses to support selection of technologies and evaluation of RPS for promising mission applications. This paper describes the content of the program, and discusses its future direction.
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