NASA Multi-Purpose Radioisotope Thermal Battery (MMRTG) is widely used in deep-space detectors such as New Horizons (Pluto), Travelers, Apollo Project, Curiosity Rover, and Ba-238 fuel cells, applying isotope decay Thermoelectric conversion power generation, life expectancy for decades. In 1988, the U.S. stopped the production of plutonium-238 and faced a shortage of nuclear fuel. In 2015, the U.S. Department of Energy decided to resume production of plutonium-238 used in radioisotope thermal power systems (RTGs) in order to support NASA. (NASA) Further Deep Space Mission Requirements.
Through the efforts of domestic innovative methods, the supply of scarce é’š-238 materials seems to have been restored. According to a memorandum from NASA's NASA Director of Planetary Science, James Green, NASA decided to lift the é’š-238 restriction ban on radioisotope thermal power systems for space exploration purposes, which means that NASA will be able to manufacture more The 238 material is a radioisotope thermal battery for nuclear fuel, including the 2018 Opportunity Rover Exploration Program. The Department of Energy will also make every effort to provide a green light for the production of radioisotope nuclear fuel for the NASA space exploration project.
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