About the author
Carl Sagan was an American astronomer, planetary scientist, and science communicator. Alongside his research and work on NASA missions, he wrote for general readers with the conviction that scientific scale should deepen rather than diminish human wonder.
Cosmos opens on the shore of a cosmic ocean, with Earth presented as one world among billions rather than the fixed center of creation. Carl Sagan uses that change in scale to connect astronomy, biology, geology, and the history of ideas.
Where to start
Start with Cosmos. Carl Sagan places human history inside the far larger history of stars, planets, life, and scientific discovery.
