Einstein’s theories and the nature of light.
The evolution of life on Earth and potential forms elsewhere. Carl Sagan Unser Kosmos (1982, 276 S , Text) pdf
Droemer Knaur (German title: Unser Kosmos: Eine Reise durch das Weltall ). Einstein’s theories and the nature of light
The transition from astrology to astronomy. both historical and via spacecraft.
The book is organized into 13 chapters that correspond to the episodes of the original television series:
Comparison of Earth's atmosphere to the hostile conditions of Venus. Blues for a Red Planet: Humanity's fascination with Mars.
The voyages of exploration, both historical and via spacecraft.
