Carl Sagan

Carl Sagan was an American astronomer and science communicator who helped bring the study of the universe to a wide audience. His books and the television series Cosmos explored scientific discovery, skepticism, and humanity's place in the cosmos.

Books by Carl Sagan

Cosmos

Carl Sagan

Cosmos traces how stars, planets, chemistry, life, intelligence, and civilization form one connected story. It asks how humans can know a universe that exceeds intuition—and how that knowledge should shape exploration, public reasoning, and the protection of Earth.

11 chapters

The Demon-Haunted World

Carl Sagan

The Demon-Haunted World asks how people can distinguish reliable knowledge from comforting stories in a technologically powerful society. Sagan joins wonder to skepticism, then traces the question through UFOs, memory, education, media, scientific responsibility, and democratic freedom. The practical value is a disciplined way to test claims without losing humane curiosity.

8 chapters