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New Horizon’s Radioisotope Thermoelectric Generator

Two men work on a grand piano-sized spacecraft wrapped in a gold insulating blanket. A large cylinder, a radioisotope thermoelectric generator, sticks out of the side.

New Horizons weighs 1,060 pounds.

NASA/JHUAPL

February 6, 2025

Language	english

New Horizons carries seven scientific instruments and a radioisotope thermoelectric generator. The spacecraft weighs 1,060 pounds.

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New Horizon’s Radioisotope Thermoelectric Generator

Feb 6, 2025

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