MMRTGMulti Mission Radioisotope Thermoelectric Generator
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The next NASA mission planning to use an MMRTG is the Mars 2020 rover, due to be launched as part of NASA's Journey to Mars, to seek signs of past life on the Red Planet, test technology for human exploration, and gather samples of rocks and soil that could be returned to Earth in the future.
Upon successful landing of the rover, the company's MMRTG began to power the Mars surface operations and is reportedly operating as expected.
The MMRTG, which has a design life of 14 years, has been built to operate in a range of harsh environments.
The first planned mission that will use the new MMRTG power system is the Mars Science Laboratory, a mobile laboratory rover currently scheduled for launch to the Red Planet in 2009.