How effective is nuclear propulsion?

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Nuclear thermal propulsion is considered highly effective for space travel due to its ability to provide greater thrust and efficiency compared to traditional chemical propulsion. It utilizes a nuclear reactor to heat propellant, resulting in higher specific impulse and reduced travel times for missions. The discussion highlights resources, such as an article from the Department of Energy, that outline key benefits and considerations of nuclear thermal propulsion. Safety, cost, and technological readiness are also important factors in evaluating its effectiveness. Overall, nuclear thermal propulsion presents a promising option for future space exploration endeavors.
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How effective is it
Hi
I was just wondering about the effectiveness of nuclear propulsion, specifically nuclear thermal propulsion.
 
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Hi I was wondering how fast a space shuttle could go, if it didn't have to first escape the earths gravity. As in if it had the rockets attached to it.
 

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