Analysis of information sources in references of the Wikipedia article "Carl Sagan" in Portuguese language version.
A pioneer in the field of exobiology, he continued to teach graduate and undergraduate students in courses in astronomy and space sciences and in critical thinking at Cornell.
Squyres said that Carl Sagan, a renowned astronomer and Cornell faculty member from 1971 to 1996, was one of his greatest influences while he was a graduate student at Cornell.
A thesis in four parts submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Astronomy, University of Chicago, June, 1960
A thesis in four parts submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in the Department of Astronomy, University of Chicago, June, 1960