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'''Carl Sagan''' (1934-1996) was a professor of [[astronomy]] at [[Cornell University]] in Ithaca, New York, who became a celebrity on television and a vocal advocate for increased searches for intelligent life in outer space.  ''Time'' magazine reported that Carl Sagan "talked with [[Jimmy Carter]] about such esoteric matters as [[black hole]]s and [[exobiology]] (the study of possible extraterrestrial life)."<ref>[http://www.time.com/time/magazine/article/0,9171,951539,00.html Frederic Golden, "The Cosmic Explainer," Time.com 20 Oct. 1980.]</ref> He was instrumental in the development of Search for Extra-Terrestrial Intelligence ([[SETI]]).  U.S. Federal Judge [[Richard Posner]] called him one of America's top public intellectuals.<ref>[http://home.uchicago.edu/~rposner/publicintellect.htm] "Data for tables in Chapter 5 of Richard A. Posner, Public Intellectuals: A Study of Decline" where Posner talks about the data he used for his book ''Public Intellectuals: A Study of Decline''.</ref><ref>[http://home.uchicago.edu/~rposner/TABLE%20II.pdf] Table II, which is Posner's data for 607 public intellectuals. A PDF search of "Sagan" will show he is on Posner's list.</ref>

'''Carl Sagan''' (1934-1996) was a professor of [[astronomy]] at [[Cornell University]] in Ithaca, New York, who became a celebrity on television and a vocal advocate for increased searches for intelligent life in outer space.  ''Time'' magazine reported that Carl Sagan "talked with [[Jimmy Carter]] about such esoteric matters as [[black hole]]s and [[exobiology]] (the study of possible extraterrestrial life)."<ref>[http://www.time.com/time/magazine/article/0,9171,951539,00.html Frederic Golden, "The Cosmic Explainer," Time.com 20 Oct. 1980.]</ref> He was instrumental in the development of Search for Extra-Terrestrial Intelligence. ([[SETI]])

Professor Sagan, like many scientists throughout the 20th century, believed that intelligent life may exist on planets other than Earth.  <blockquote>"The significance of a finding that there are other beings who share this universe with us would be absolutely phenomenal, it would be an epochal event in human history," Sagan declared.<ref>[http://www.cnn.com/US/9612/20/sagan/ Norma Quarles, "Carl Sagan Dies at 62," CNN.com 20 Dec. 1996.]</ref></blockquote>

Professor Sagan, like many scientists throughout the 20th century, believed that intelligent life may exist on planets other than Earth.  <blockquote>"The significance of a finding that there are other beings who share this universe with us would be absolutely phenomenal, it would be an epochal event in human history," Sagan declared.<ref>[http://www.cnn.com/US/9612/20/sagan/ Norma Quarles, "Carl Sagan Dies at 62," CNN.com 20 Dec. 1996.]</ref></blockquote>