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    Lederberg, Joshua (1925-)

    Joshua Lederberg
    American geneticist at Stanford University who shared the 1958 Nobel Prize for Medicine with George W. Beadle and Edward L. Tatum for discovering the mechanisms of genetic recombination in bacteria. In 1958, while at the University of Wisconsin (where he was chairman of the medical genetics department), he was the first to raise the issue of biological contamination by space missions.1 He was subsequently appointed chairman of WESTEX and then of the Space Science Board's Committee 14 on Exobiology. In 1960, Lederberg introduced the term "exobiology,"2 and in 1961 was among the group of researchers who attended the first SETI conference at Green Bank.3


    References
    1. Lederberg, J., and Cowie, D. B. "Moondust," Science, 127, 1473 (1958).
    2. Lederberg, J. "Exobiology: Approaches to Life Beyond the Earth," Science, 132, 398 (1960).
    3. Thomas, Shirley. Men of Space: Profiles of Scientists Who Search for Life in Space. Philadelphia: Chilton (1960).

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