in American National Biography Online
P ublished online June 2000 .
Reference Entry. Subjects: Politics; Radio; Astronomy and Astrophysics; History of Science and Technology. 2958 words.
Sagan, Carl (09 November 1934–20 December 1996), space scientist, author, science popularizer, TV personality, and antinuclear weapons activist, was born Carl Edward Sagan in Brooklyn, New...