Carl Sagan Autographs
Carl Edward Sagan (/ˈseɪɡən/; SAY-gən; November 9, 1934 – December 20, 1996) was an American astronomer, planetary scientist and science communicator. Initially an assistant professor at Harvard, Sagan later moved to Cornell, where he was the David Duncan Professor of Astronomy and Space Sciences and directed the Laboratory for Planetary Studies. He played an active role in the Mariner, Viking and Voyager programs. He published more than 600 scientific papers and articles and several popular science books, starting with The Cosmic Connection. He won the Pulitzer Prize for General Nonfiction for The Dragons of Eden.
He co-wrote and narrated the 1980 documentary series Cosmos: A Personal Voyage, which has been seen by at least 500 million people in 60 countries and won two Emmy Awards and a Peabody Award. Cosmos, the companion volume, was the bestselling science book to date.
A lifelong science fiction fan, Sagan entered the genre with Contact, which was adapted as the film of the same name. He was a founding member and first president of the Planetary Society. He proposed the Pale Blue Dot photograph of Earth taken by Voyager 1.
Read more about Carl Sagan on Wikipedia
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Current items with a signature of Carl Sagan
These are the most current items with a signature of Carl Sagan that were listed on eBay and on other online stores - click here for more items.
| Picture | Item Title | Price | Store |
 | Carl Sagan SIGNED Contact PSA/DNA GRAIL | $1,295.00 |  |
| Carl Sagan SIGNED Contact PSA/DNA GRAIL | $1,295.00 | |
| Carl Sagan SIGNED Contact PSA/DNA GRAIL | $1,295.00 | |
| Carl Sagan SIGNED Contact PSA/DNA GRAIL | $1,295.00 | |
| Carl Sagan SIGNED Contact PSA/DNA GRAIL | $1,295.00 | |
Traded items with a signature of Carl Sagan
The most expensive item with a signature of Carl Sagan (Vital Dust by Christian de Duve – Vintage Find Signed By Carl Sagan) was sold in February 2025 for $22,000.00 while the cheapest item (Cosmos by Carl Sagan (1985, Mass Market) Signed By Cari Sagan Greene - Sister) found a new owner for $3.00 in May 2024. The month with the most items sold (2) was July 2008 with an average selling price of $41.98 for an autographed item of Carl Sagan. Sold items reached their highest average selling price in June 2025 with $8,500.00 and the month that saw the lowest prices with $22.50 was March 2011. In average, an autographed item from Carl Sagan is worth $125.00.
Most recently, these items with a signature of Carl Sagan were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | Carl Sagan SIGNED From The Earth To The Moon Comic Book PSA/DNA GRAIL | $1,499.00 |  |
| Carl Sagan SIGNED From The Earth To The Moon Comic Book PSA/DNA GRAIL | $1,499.00 | |
| Carl Sagan SIGNED From The Earth To The Moon Comic Book PSA/DNA GRAIL | $1,499.00 | |
| Carl Sagan SIGNED From The Earth To The Moon Comic Book PSA/DNA GRAIL | $1,499.00 | |
| Carl Sagan SIGNED From The Earth To The Moon Comic Book PSA/DNA GRAIL | $1,499.00 | |
| Carl Sagan SIGNED Viking 1 Cover 1978 Envelope w/Letter RARE | $787.00 | |
| Carl Sagan SIGNED Viking 1 Cover 1978 Envelope w/Letter RARE | $787.00 | |
| Carl Sagan SIGNED Viking 1 Cover 1978 Envelope w/Letter RARE | $787.00 | |
| Carl Sagan SIGNED Viking 1 Cover 1978 Envelope w/Letter RARE | $787.00 | |
| Carl Sagan SIGNED Viking 1 Cover 1978 Envelope w/Letter RARE | $787.00 | |
| Physicist/Astrophysicist Carl Sagan Autographed 3x5 Index Card | $8,500.00 | |
| Physicist/Astrophysicist Carl Sagan Autographed 3x5 Index Card | $8,500.00 | |
| Physicist/Astrophysicist Carl Sagan Autographed 3x5 Index Card | $8,500.00 | |
| Physicist/Astrophysicist Carl Sagan Autographed 3x5 Index Card | $8,500.00 | |
| Physicist/Astrophysicist Carl Sagan Autographed 3x5 Index Card | $8,500.00 | |
