Travel to the stars by exploding atomic bombs

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I discovered this fascinating programme on youtube yesterday. It's an old BBC4 documentary about Freeman Dyson and his project to design a spaceship that travels into space, propelled by detonating a series of nuclear explosions.


I found the documentary both engrossing and bizarre. Throughout the program, the people involved in the project were convinced that it was a viable and brilliant way to send humans into space and the other planets in our solar system. They pointed out, sensibly, that rocket motors did not produce enough power to effectively fling humans to the edges of our solar system, or our nearby astral neighbours. Chemical rockets were good enough to go to the moon, but that's about it.

This all made sense, but at no point in the documentary did anyone say 'wait a second, how on Earth are you going to accurately steer this craft as you explode nuclear weapons under its 'spring plate'? Also, how are you going to safely detonate a whole series of nuclear bombs under this 'spring plate' without them frying the crew with radiation or running the risk of one of them blowing up while it's still inside the bomb bay? The practical problems seem endless, and yet they carried on with idealistic zeal. Fascinating stuff.