57 2004 Space and Security Power Systems In 2004, Idaho became home to the Space and Security Power Systems Facility (SSPSF).The following year, Idaho engineers and technicians assembled, tested and delivered to NASA the radioisotope thermoelectric generator (RTG) for the New Horizons mission in 2006, which completed its flyby of Pluto in July 2015. INL also assembled and fueled a new design of RTG for NASA’s Mars Curiosity Rover, which launched in 2011, arrived at the red planet in 2012, and conducted an extended mission through 2016.The team’s next effort concerns an RTG for another Mars mission planned for launch in 2020. In 2019, INL begins producing the isotope needed to fuel future missions. “ Not many people have to wait 10 years for the payoff of their hard work, but it is enormously gratifying to see the close-up imagery being beamed back.” — Stephen Johnson, director of INL Space Nuclear Power & Isotope Technologies, of the Pluto flyby