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New Horizons - Artist Concept

Artist’s concept of New Horizons, the first spacecraft to explore Pluto and the Kuiper Belt.

Learn more about radioisotope power and the extreme environments this technology allows us to explore with NASA's Eyes on the Solar System 3D interactive.

Journey through space on Mars missions, solar missions, Moon missions, and outer planet missions; discover how we venture into Venus’ oven-like atmosphere and permanently dark places in the solar system such as craters in Earth’s Moon; and get a closer look at how Radioisotope Thermoelectric Generators, Stirling Radioisotope Generators, and Radioisotope Heater Units take us further.