The Triton Hopper addresses NASA’s strategic goals 2, 3, and 6 by exploring the Triton environment, the first exploration of a KBO which could hold clues to how the solar system formed. It will create new technologies in the form of a semi-autonomous planetary hopping vehicles which use frozen gases for propellants and would capture the imaginations of educators and students by sharing with them exploration of a completely new environment on a foreign world. Triton Hopper will also address the NASA technology areas of Space Power and Energy Storage, Robotics and Autonomous Systems, Communications and Navigation Systems, Science Instruments and Sensors, Nanotechnology, Materials, and Thermal Management Systems. The Triton Hopper study will be the first real definition of a ‘frozen gas rock’ powered hopper, since prior ISRU fuel concepts were fed with atmospheric gas. The Triton Hopper would be a pathfinder in combining ISRU acquisition and science, since the sampling system doubles as the propellant production system. Addressing the challenge of autonomous hopper exploration in an extremely cold outer solar system environment, Triton Hopper serves as a pathfinder for other exploration of the frozen surfaces of icy moons such as Enceladus and Europa, as well as more distant objects such as Sedna, Charon, Centaurs, and Trans-Neptunian and Kuiper-belt objects.