Intelligent Life in the Universe by I.S. Shklovskii and Carl Sagan

Softcover. Condition: Good. 1966. Delta. Fifth Printing. Illustrated.

This book, first published in 1966, is a product of a unique international collaboration between a world famous Russian astronomer and a leading American space scientist, the first popular and modern discussion of the entire panorama of natural evolution.

In Sagan’s description of his remarkable collaboration with Shklovskii, conducted entirely by mail with the Russian scientist in the Soviet Union and Sagan in the U.S., he explains they were never able “to discuss the present edition in person. ‘The probability of our meeting is unlikely to be smaller than the probability of a visit to the Earth by a extraterrestrial cosmonaut,” Shklovskii once wrote him.