Carl Sagan pioneered & promoted SETI, the search for this kind of intelligence
Carl Sagan was the David Duncan Professor of... [DOC] [TLE] SETI Pioneers by David Swift | New Scientist [PAR] Mar 9, 1991 ... SETI Pioneers by David Swift, University of Arizona Press, pp 434, &dollar;35/
32.50 ... NASA researcher into SETI (the search for extraterrestrial intelligence).