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New Horizon’s Radioisotope Thermoelectric Generator (RTG)

New Horizons carries seven scientific instruments and weighs 1,060 pounds.
New Horizons carries seven scientific instruments and weighs 1,060 pounds.
January 3, 2025
Credit NASA/JHUAPL
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The radioisotope thermoelectric generator (RTG) has been installed onto the New Horizons spacecraft for a fit check. The RTG is the baseline power supply for New Horizons, launched in January 2006 on a journey to Pluto and its moon, Charon. It flew past Pluto in July 2015.