Fifty grams of plutonium-238 -- the stuff that powers many deep-space missions, such as the New Horizons mission to Pluto -- was produced at Oak Ridge National Laboratory (ORNL) in Tennessee. It's the first batch made in the United States since 1988.
Fifty grams of plutonium-238 -- the stuff that powers many deep-space missions, such as the New Horizons mission to Pluto -- was produced at Oak Ridge National Laboratory (ORNL) in Tennessee. It's the first batch made in the United States since 1988.
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