The development of intelligence and the human brain.
The birth and death cycles of stellar bodies. Carl Sagan Unser Kosmos (1982, 276 S , Text) pdf
Early human attempts to understand the stars. The development of intelligence and the human brain
Droemer Knaur (German title: Unser Kosmos: Eine Reise durch das Weltall ). Carl Sagan Unser Kosmos (1982, 276 S , Text) pdf
Comparison of Earth's atmosphere to the hostile conditions of Venus. Blues for a Red Planet: Humanity's fascination with Mars.