1994 "First Edition" stated; Random House publishers, New York; larger hardbound in black boards with gilt lettering on spine; very good condition with unmarked pages, appears unread; decorative dust jacket very good.


Description -

Pale Blue Dot: A Vision of the Human Future in Space is a 1994 book by Carl Sagan. It is the sequel to Cosmos and was inspired by the famous Pale Blue Dot photograph, for which Sagan provides a poignant description. In this book, Sagan mixes philosophy about the human place in the universe with a description of the current knowledge about the Solar System. He also details a human vision for the future.


Summary -

The first part of the book examines the claims made throughout history that Earth and the human species are unique. Sagan proposes two reasons for the persistence of the idea of a geocentric, or Earth-centered universe: human pride in our existence, and the threat of torturing those who dissented from it, particularly during the time of the Roman Inquisition. However, he also admits that the scientific tools to prove the Earth orbited the Sunwere (until the last few hundred years) not accurate enough to measure effects such as parallax, making it difficult for astronomers to prove that the geocentric theory was false.


After saying that we have gained humility from understanding that we are not literally the center of the universe, Sagan embarks on an exploration of the entire solar system. He begins with an account of the Voyager program, in which Sagan was a participating scientist. He describes the difficulty of working with the low light levels at distant planets, and the mechanical and computer problems which beset the twin spacecraft as they aged, and which could not always be diagnosed and fixed remotely. Sagan then examines each one of the major planets, as well as some of the moons—including Titan, Triton, and Miranda—focusing on whether life is possible at the frontiers of the solar system.


Sagan argues that studying other planets provides context for understanding the Earth...

Pale Blue Dot: A Vision of the Human Future in Space by Carl Sagan

SKU: BS56n