how are “nuclear powered” submarines and space probes powered?

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In other words, where do “nuclear powered” vehicles get their power from?

I imagine it’s not from fusion or fission, nor can it involve getting water to turn to steam, an in many other types of power generation.

So how does it work?

EDIT: it seems that nuclear submarines actually do use fission, so I’m switching my question to only focus on space vehicle power generation.

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9 Answers

Anonymous 0 Comments

A short answer to the question would be that some nuclear powered submarines can be powered by a reactor that either charges internal batteries or it could generate steam to power a turbine.

in space there are nuclear powered satellites that use decaying elements ( like plutonium, etc.) that create heat and then power to charge batteries as well but there are also solar powered satellites that continuously charge batteries that keep the unit in operation using solar arrays.

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