NASA has just published “Exploring the Cosmos,” the
fifth volume of “Exploring the Unknown,” an ongoing series of
reference books essential for anyone interested in the
history and development of the U.S. civil space program.

Selected documents of interest to those involved in both
space history and space policy are grouped into three
thematic chapters with an introductory essay for each
subject. Chapter one is devoted to the origins and early
organization of space science; chapter two covers NASA’s
planetary exploration efforts; and the third chapter details
space-based astronomy and astrophysics.

The book is for sale from the U.S. Superintendent of
Documents and from the NASA Information Center. Details on
ordering the volume are available at: