[Brett66]

The history of nuclear propulsion is one of the most frustrating stories of the space age. Nuclear thermal was a modest but workable idea. The other concepts like project Orion and gas-core nuclear propulsion would've made the entire solar system our playground. We've already figured out how to transverse interplanetary distances with relative ease but dangblasted politics has denied us our manifest destiny.

[RadioAstronomer]

I quite agree. I don't think we will see such in our lifetimes!