28 September 1980
Carl Sagan examines our planet's place in the universe by leading us on a journey from Earth to Deep Space.
5 October 1980
Carl Sagan examines the origin, development, and complexity of life on Earth and speculates on the possibility of life developing elsewhere in the universe.
12 October 1980
After briefly looking at the pseudoscience of astrology, Carl Sagan examines the history of astronomy from ancient times through Ptolemy to Johannes Kepler.
19 October 1980
Carl Sagan examines the nature of comets before turning to a close look at the planet Venus.
26 October 1980
Carl Sagan looks at the search for life on Mars from the speculations of Percival Lowell and H.G. Wells to the arrival of the Viking probes.
2 November 1980
Carl Sagan looks at the planets Jupiter and Saturn by examining the work of Galileo, Huygens, and the Voyager probes.
9 November 1980
Carl Sagan looks at the work of ancient Greek scientists and astronomers including Thales, Anaximander, Democritus, and Pythagoras.
16 November 1980
Carl Sagan explains scientific concepts like relativity and examines the possibility of time travel.
23 November 1980
Carl Sagan examines the life cycle of stars from their creation to their deaths.
30 November 1980
Carl Sagan focuses on the origin of the universe by discussing the Big Bang, Galaxies, Dimensions, and the expansion of the universe.
7 December 1980
Carl Sagan examines life on earth discussing genes, DNA, the brain, and human social development.
14 December 1980
Carl Sagan examines the possibility extraterrestrial life and discusses his skepticism about UFOs.
21 December 1980
Carl Sagan considers the significance of science and discuss the importance of human survival in the nuclear age.
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