Curiosity’s 4.8 kg of Plutonium-238 dioxide glowing its graphite container red hot. Heat given off by the decay of this isotope is converted into electric voltage by thermocouples, providing constant power during all seasons and through the day and night. [3872 x 2592] via /r/spaceporn http://ift.tt/29dbHxx
via Tumblr http://ift.tt/296HAJb
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