Hermann Oberth. A Rocketry pioneer (one of the "Three Pillars" of the science). He designed the Rocket for use in WW1 to stop the war by shock & awing England (the Berlin Crown Council sent his crazy papers back unread, in the next war the same designs were called the V2).
Although he felt alligiance to Germany as a Transylvanian Saxon he wasn't German.
He was Werner von Braun's teacher. von Braun held him in the utmost regard and when things got difficult he sent his people to go look for answers in Oberth's books.
In his last book, Oberth wrote "Dispense with Nuclear Power Plants. You should continue with atomic research, for God wants you to enjoy learning and discovering new things. But in addition build space stations at the 60-degree libration points between earth and the sun. Such research belongs in space, not on a flourishing planet. The danger is greater than you think."
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