Carl Sagan, “Cosmos: A Personal Voyage”, 1980.
Carl Sagan, “Cosmos: A Personal Voyage”, 1980 was nonfiction science during the Cold War era. More than 5 million copies of this book were sold. As a writer of science-fiction Carl Sagan later wrote “Contact”, in 1985, which was about close encounter . Continue reading Carl Sagan, “Cosmos: A Personal Voyage”, 1980.
