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Its probably because nuclear powerplants are too heavy for rockets. Though in theory nuclear powered space craft are an option. == The primary useful product of a nuclear reactor is heat. To use heat generated by a nuclear power plant to drive a conventional rocket isn't very practicle because the power to weight ratio is not very good. And when we wish to rocket ourselves out of the bottom of this gravity well, we need lots of power and minimal weight. The nuclear plant can't deliver the kind of performance that lends itself to the launch of space vehicles.

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โˆ™ 2010-03-15 08:59:14
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Which term explains whether an object's velocity has increased or decreased over time

Which of these is a characteristic of nonmetals

What is the only factor needed to calculate change in velocity due to acceleration of gravity 9.8 ms

What term is used to describe splitting a large atomic nucleus into two smaller ones

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Q: Since nuclear energy is used to power submarines why can't it be used for rocket engines?
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