''Η ΣΥΝΔΕΣΗ ΤΩΝ ΚΟΣΜΩΝ: Μια εξωγήϊνος άποψη'' - CARL SAGAN

Cosmic perspectives: Transitional animal; Unicorn of Cetus; Message from Earth; Message to Earth; Experiments in Utopias; Chauvinism; Space exploration as a human enterprise I, the scientific interest; Space exploration as a human enterprise II, the public interest; Space exploration as a human enterprise III, the historical interest --
Solar system: On teaching the first grade; "Ancient and legendary Gods of old"; Venus detective story; Venus is hell; Science and "intelligence"; Moons of Barsoom; Mountains of Mars I, observations from Earth; Mountains of Mars II, observations from space; Canals of Mars; Lost pictures of Mars; Lost pictures of Mars; Ice Age and the cauldron; Beginnings and ends of the Earth; Terraforming the planets; Exploration and utilization of the solar system --
Beyond the solar system: Some of my best friends are dolphins; "Hello, central casting? send me twenty extraterrestrials"; Cosmic connection; Extraterrestrial life, an idea whose time has come; Has the Earth been visited?; Search strategy for detecting extraterrestrial intelligence; If we succeed ...; Cables, drums, and seashells; Night freight to the stars; Astroengineering; Twenty questions, a classification of cosmic civilizations; Galactic cultural exchanges; Passage to elsewhen; Starfolk, a fable; Starfolk, a future; Starfolk, the cosmic Cheshire cats