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With the production of 50 grams of plutonium-238, researchers at the Department of Energy鈥檚 Oak Ridge National Laboratory have restored a U.S. capability dormant for nearly 30 years and set the course to provide power for NASA and other missions.
Since its 1977 launch, NASA鈥檚 Voyager 1 spacecraft has travelled farther than any other piece of human technology. It is also the only human-made object to have entered interstellar space. More recently, the agency鈥檚 New Horizons mission flew past Pluto on July 14, giving us our first close-up lo...