Carl Sagan
Born: November 9, 1934 in Brooklyn, New York, USA
Died: December 20, 1996 in Seattle, Washington, USA
Fields: Astronomy, Scientific Communication

Biography - Awards - Books


Carl Sagan was an American astronomer, astrophysicist,  cosmologist and science communicator. He was born in 1934 in Brooklyn, New York to Rachel Molly Gruber and Samuel Sagan, an immigrant garment worker from Russia, modern day Ukraine. He spent most of his career as an astronomy professor and Planetary Studies laboratory director at Cornell University (Ithaca, New York), but he is best known for popularizing science. He did this through a number of well-received books and TV shows, such as the award winning  1980 television show Cosmos: A Personal Voyage, which Sagan co-wrote and narrated. His goal was to get people to understand the cosmos better. In all his works, he tried to emphasize the worthiness of the human race, while highlighting the insignificance of Earth compared to the universe. Sagan justified his passion for scientific communication with a number of reasons. The first was that engaging the public would result in more scientific funding and public support. The other was the pure experience of conveying one’s excitement about the universe.

Despite his reputation as a communicator, his scientific contributions were the driving force behind the discovery of high surface temperatures on Venus. In the 1960s, Sagan analyzed the planet’s radio emissions and concluded that the surface temperature was 500 degrees Celsius. He then assisted NASA with the Mariner missions to Venus, which confirmed his conclusions.

A tribute to Carl Sagan is having a unit of measurement unofficially named after him. Due to his catchphrase “billions and billions”, a sagan is jokingly used to refer to a large number of anything.


Up to Biography - down to Books

NASA Distinguished Public Service Medal (1977)
Pulitzer Prize for General Non-Fiction (1978)
Oersted Medal (1990)
National Academy of SciencesPublic Welfare Medal (1994)


Up to BiographyUp to Awards

Cosmos by Carl Sagan Cosmos   Synopsis and Bibliography
My Inventions: Autobiography of Nikola Tesla The Demon-Haunted World: Science as a Candle in the Dark   Synopsis and Bibliography
The Dragons of Eden by Carl Sagan The Dragons of Eden: Speculations on the Evolution of Human Intelligence   Synopsis and Bibliography
Billions and Billions by Carl Sagan Billions and Billions: Thoughts on Life and Death at the Brink of the Millennium   Synopsis and Bibliography
The Nikola Tesla Treasury The Varieties of Scientific Experience: A Personal View of the Search for God   Synopsis and Bibliography

More Carl Sagan books