Carl Edward Sagan (November 9, 1934 – December 20, 1996) was an American astronomer, cosmologist, astrophysicist, astrobiologist, author, science popularizer, and science communicator in astronomy and other natural sciences. He is best known for his work as a science popularizer and communicator. His best known scientific contribution is research on extraterrestrial life, including experimental demonstration of the production of amino acids from basic chemicals by radiation. Sagan assembled the first
The Universe
⭐ 7God, the Universe and Everything Else
⭐ 6.1Carl Sagan: A Cosmic Celebrity
⭐ 0A Dialogue: A Conversation with Carl Sagan and Ted Turner
⭐ 0The Reality of Me
⭐ 7.2Together to Mars?
⭐ 5The Case of the Ancient Astronauts
⭐ 0Target... Earth?
⭐ 4Wanderers
⭐ 7.169Who's Out There?
⭐ 6.3Pale Blue Dot
⭐ 9The Farthest
⭐ 7.7On the 8th Day
⭐ 0In Search of Ancient Astronauts
⭐ 7.7The Violent Universe
⭐ 0The Earth Day Special
⭐ 8Piece by Piece
⭐ 7.6Aliens Uncovered: Close Encounters
⭐ 0We Are Here: The Pale Blue Dot
⭐ 0⭐ 5.4⭐ 8.576⭐ 8.464⭐ 8.464⭐ 7.407⭐ 6.864⭐ 0⭐ 6.895⭐ 7.3