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  • This image of Pluto, taken by New Horizons after a 9 1/2-year journey, is our highest-resolution photo of the dwarf planet since its discovery by Clyde Tombaugh in 1930. | Photo courtesy of NASA.
    To Pluto and Beyond: Powering New Horizons’ 3-Billion-Mile Journey

    July 15, 2015 11:23 AM

    NASA's New Horizons spacecraft made its historic flyby of Pluto after a 3-billion-mile journey powered by nuclear technology from the Energy Department.

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  • The History of Nuclear Power in Space

    June 9, 2015 11:42 AM

    Explore the history of nuclear power systems in U.S. space exploration -- from early satellites to the moon, Mars and beyond.

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