On the cusp of a spacious and empty universe, Carl Sagan, the American astronomer who is famous for being a simple science and a passionate researcher in the theories of life and its various forms outside the planet, carried in his hands this precious book; We accompanied us on a fun journey and adventure full of questions to the depths of the universe! What is the universe? What is its origin? How did this life arise? Are we really alone here, or is it possible to have a space invasion one day? Many questions were asked by humans and still wandering looking for an answer to them ... or rather, hoping that they will find any answer!