Sagan develops models showing that a strong greenhouse effect can explain the extremely high surface temperature of Venus.
Historical person
Carl Sagan Biography
Historical biography and chronological timeline for Carl Sagan, based on 5 World History Database records associated with United States of America.
Chronological biography
1960
1962
Mariner 2 measurements confirm that Venus is extremely hot, supporting greenhouse models of the planet's climate.
1977
Leads the committee selecting the images, sounds, music and messages carried on the Voyager Golden Record.
1990
Persuades NASA to command Voyager 1 to photograph Earth from beyond Neptune.
Voyager 1 photographs a family portrait of the Solar System at Sagan's long-standing urging.
Titles and roles
Astronomer
Record provenance
This biography is assembled from World History Database records filtered by country and personal-name fields. Exact duplicate display records are removed. The database is an index rather than a complete narrative biography; formal research should verify entries against relevant primary or specialist sources.