In 1962, 186 scientists—including 18 Nobel laureates—argued for months over the...

https://dlf-ne.org/is-nuclear-propulsion-worth-it-just-to-shave-time-to-mars/

In 1962, 186 scientists—including 18 Nobel laureates—argued for months over the merits of nuclear versus chemical propulsion. They weren't just debating physics; they were deciding the future of space