Blader door items (96 in totaal)

"A well-illustrated tour of our solar system...The authors' discussions of what we don't know about these phenomena are bound to arouse the curiosity of the general reader, and their explanations of what we do know are supplemented with informative…

 Introduction is by Carl Sagan and there are many color photographs and other illustrations. Book is written by 21 eminent scientists, men who designed the famous space missions of the 1970's.

Over het onderzoek en de rresultaten daarvan naar de planeet Mars

prachtig boek over de planeten en satellieten