So you managed to get some Nuclear material to space? Please don't just burn it up in a chain reaction. We can do better. https://en.wikipedia.org/wiki/Nuclear

So you managed to get some Nuclear material to space? Please don't just burn it up in a chain reaction. We can do better. https://en.wikipedia.org/wiki/Nuclear_salt-water_rocket https://en.wikipedia.org/wiki/Nuclear_salt-water_rocket This one lets you at least 'aim' the fission fragments. It's dangerous and fast, thought you would like that. But closed cycle is best: https://en.wikipedia.org/wiki/Nuclear_thermal_rocket https://en.wikipedia.org/wiki/Nuclear_thermal_rocket We don't need or want 'Nukes in Space' just reactors and engines.