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    17. avatar

    Carl Sagan

    c/carl-sagan

    Carl Edward Sagan was an American astronomer, planetary scientist and science communicator.

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    Joshua Lederberg

    1 mention across 1 talk in Carl Sagan

    More from Joshua Lederberg
    Is There Intelligent Life on Earth?1 mention
    4:38

    …professor of genetics in the school of medicine in the academic year 1962 63, expanding his investigations in biology with Joshua Lederberg. Our world lines too briefly merged for five years after we joined the Cornell Astronomy faculty in 1968. I will…