# Carl Sagan

Carl Sagan was an American astronomer, planetary scientist, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator. His best known scientific contribution is his research on the greenhouse effect on the atmosphere of Venus. Sagan is the author of the bestselling book Cosmos and hosted the television series of the same name.

## Quick Facts

- **Born:** November 9, 1934
- **Birthplace:** Brooklyn, United States
- **Nationality:** American
- **Occupation:** cosmologist
- **Category:** Scholars & Educators
- **Net Worth:** $5M (est. 1996)
- **Also Known As:** Voice of the Cosmos

## Overview

Carl Edward Sagan 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.

## Wikipedia Context

This profile section is complemented from Wikipedia for Carl Sagan. American scientist and science communicator (1934–1996)

## Sources

Primary source page: https://en.wikipedia.org/wiki/Carl_Sagan

## Timeline

### 1934 — Birth
Birth of Carl Sagan.

### 2026 — Wikipedia Complement
Profile metadata and editorial blocks were complemented using Wikipedia and Wikidata references.

### 2026 — Profile Update
Structured profile components were updated to improve completeness.

## Quotes

> "Profile note: Carl Sagan was complemented using Wikipedia reference material."
> — Carl Sagan, Peoplebio editorial note (2026)

> "Editorial note: This block stores profile notes and source context, not attributed quotations."
> — Carl Sagan, Peoplebio editorial note (2026)

> "Source note: https://en.wikipedia.org/wiki/Carl_Sagan"
> — Carl Sagan, Peoplebio editorial note (2026)

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Source: https://peoplebio.info/p/carl-sagan