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What's the typical temperature of a reactor core in a nuclear thermal rocket?

In general, the temperature is as high as they can get away with without melting, eroding, or weakening the reactor core -- this is also the motivator for unusual reactor core styles such as particle ...
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2 votes

Vehicle liquids freeze on the Moon -- how has this problem been solved?

Supplementary answer: Vehicle liquids freeze on the Moon -- how has this problem been solved? There's an example where liquid/solid transitions really are a feature, not a bug. How much wax is on ...
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