> The Carl Sagan Foundation
A non-profit organization established to continue the planet-wide campaign of public science education started by Sagan. Find information on the Foundations programs, Cosmos the television series and links to Carl Sagan related material on the web.

> The Planetary Society
A non-profit organization founded to encourage the exploration of our solar system and the search for extraterrestrial life. Find a biography of Sagan, information about the Society's projects and learn about the exploration of the universe.

> Nova: Time Travel
Read an interview with Carl Sagan as part of the Nova special series on whether time travel is possible, and if so, how one might go about building a time machine. Also, listen to Sagan's responses in RealAudio format.

> The New York Times: Even in Death, Carl Sagan's Influence Is Still Cosmic
A 1998 article published by The New York Time on the life and legacy of Carl Sagan.