Sagan’s opening line captures the flavor of this wonderful episode very succinctly:
There are two ways to view the stars: as they really are, and as we might wish them to be.
In this 3rd instalment of Carl Sagan’s popular series, he probes into beliefs about stars and the science of astronomy that developed after. He also looks at prevailing scientific models about the earth and the solar system (e.g. earth-centric) and how this had changed going into modern times.