What is Carl Sagan?
{{Infobox scientist | name = Carl Sagan | image = Carl Sagan Planetary Society cropped.png | caption = Sagan in the 1970s | birth_name = Carl Edward Sagan | birth_date = {{Birth date|1934|11|9}} | birth_place = [[New York City]], [[New York (state)|New York]], [[U.S.]] | death_date = {{Death date and age|1996|12|20|1934|11|9}} | death_place = [[Seattle]], [[Washington (state)|Washington]], [[U.S]]. | education = [[University of Chicago]] ([[Bachelor of Arts|BA]], [[Bachelor of Science|BS]], [[Master of Science|MS]], PhD) | field = {{flatlist| * [[Astronomy]] * [[astrophysics]] * [[cosmology]] * [[astrobiology]] * [[space science]] * [[planetary science]] }} | work_institutions = {{flatlist| * [[University of Chicago]] * [[Cornell University]] * [[Harvard University]] * [[Smithsonian Astrophysical Observatory]] * [[University of California, Berkeley]] }} | doctoral_advisor = [[Gerard Kuiper]] | doctoral_students = {{flatlist| * [[David Morrison (astrophysicist)|David Morrison]]{{Sfn|Terzian|Trimble|1997|loc=Article in Bull AAS 29(4)}} * [[Clark Chapman]] * [[James B. Pollack]]{{Sfn|Davidson|1999|loc=The book is dedicated to Pollack}} * [[Owen Toon]] * [[Christopher Chyba]]{{Sfn|Terzian|Trimble|1997|loc=Article in Bull AAS 29(4)}} * [[Steven Soter]]{{Sfn|Terzian|Trimble|1997|loc=Article in Bull AAS 29(4)}} * Reid Thompson{{Sfn|Terzian|Trimble|1997|loc=Article in Bull AAS 29(4)}} * Peter Wilson{{Sfn|Terzian|Trimble|1997|loc=Article in Bull AAS 29(4)}} * David Pieri{{Sfn|Terzian|Trimble|1997|loc=Article in Bull AAS 29(4)}}}} | known_for = {{flatlist| * [[SETI|Search for Extra-Terrestrial Intelligence (SETI)]] * ''[[Cosmos: A Personal Voyage]]'' * ''[[Cosmos (Carl Sagan book)|Cosmos]]'' * [[Voyager Golden Record]] * [[Pioneer plaque]] * ''[[The Dragons of Eden]]'' * ''[[Contact (novel)|Contact]]'' * ''[[Pale Blue Dot (book)|Pale Blue Dot]]'' * ''[[The Demon-Haunted World]]'' }} | thesis_title = Physical studies of pla