Idaho National Laboratory’s Space Nuclear Power and Isotope Technologies Division fuels and tests Radioisotope Power Systems at Idaho National Laboratory’s Materials and Fuels Complex, then delivers the systems for use in remote, harsh environments such as space. INL is working on the Multi-Mission Radioisotope Thermoelectric Generator (MMRTG) for NASA’s upcoming Mars 2020 mission that will send a rover to the Red Planet. Generators fueled and tested at INL are currently powering the Mars Science Laboratory Curiosity rover (launched in 2011) and Pluto New Horizons (launched in 2006). The power system on New Horizons was the first assembled and tested at INL.
Original model from https://sketchfab.com/3d-models/mars-2020-4024a6f6637f4c8a9e5a99a2d0450c81