[Republic of Texas]

"Zactly. I got tiredhead in the first sentence. Please, Freeper Engineers, explain this mess!

[Cincinatus]

Radioactive fuel elements generate heat. You pour in cool hydrogen and hot hydrogen comes out. You make a rocket nozzle and you have thrust. It's called a nuclear thermal rocket engine.

[Brett66]

This engine is basically twice as efficient as the shuttle's main engine and it's very lightweight. It would be an excellent propulsion for a Mars mission, a return to the moon or just about anything we want to do in space in the future.

[Willie Green]

Please, Freeper Engineers, explain this mess!

It's a high-tech Rube Goldberg project: an entertaining exhibition of complex technology with little practical application.

[RightOnline]

"I got tiredhead in the first sentence. Please, Freeper Engineers, explain this mess!"

Why, certainly.

First, you take yer basic nuclear propulsion engine. Then............you miniaturize it.

Ya want I should continue?