Radioisotope thermoelectric generator

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Science and technology

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What Wikipedia says

A radioisotope thermoelectric generator (RTG, RITEG), or radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.

Excerpt from the Wikipedia article “Radioisotope thermoelectric generator”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: original JPG version: NASA recreated PNG version without compression artifacts in text labels: Nyq, Public domain, via Wikimedia Commons.