Man Cannot Live in the Cradle Forever

Leaving Earth (Robert Zimmerman): An excellent non-fiction book covering the various space stations built by the United States and the then-Soviet Union. Zimmerman manages to cover the dreams, hopes and realities of the various programs and comes up with many interesting observations about the programs both in the United States and Russia. For example, is NASA becoming what the Soviet program used to be? Are the Russians stepping towards the innovation of the NASA of the 1960's? Lots of good stuff here and I hope he eventually follows up with a second book.