A pioneer in the study of extraterrestrial intelligence chronicles his thirty-year search for intelligent life in the universe, which culminated in the NASA-backed SETI ...

Examines recent scientific discoveries that suggest there may be other life forms in the universe

Explains that conditions on Earth and other planets facilitate simple lifeforms, and that complex plant and animal life maybe more rare than historically predicted.

A collection of interviews and profiles show how Sagan, a lifelong skeptic, refined his views and expressed amazement that Earth encompasses everything about which he cared.

Discusses the search for new planets, examines evidence of planets orbiting distant suns, and speculates on the possibility of life on distant planets

"A philosophical statement whose explicit intention is to sweep away as both false and dangerous the 'animist' conception of man that has dominated virtually all Western world ...

Discusses the feasibility of interstellar travel, and explains the principles behind a variety of propulsion and navigation systems