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The Bruce Murray Space Image Library

Plutonium-238 Fuel Pellet

Filed under Plutonium-238

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Plutonium-238 Fuel Pellet A ceramic fuel pellet of Plutonium-238 oxide glows orange from its radioactive decay. These pellets are used inside Radioisotope Thermoelectric Generators (RTGs) to provide heat that is converted into electricity on spacecraft.

Department of Energy

Public domain

This image is in the public domain.

 

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