In the aftermath of the space shuttle Columbia disaster, Americans may have forgotten that for a quarter-century men and women circled Earth in space stations for as long as a year at a time. Most of these astronauts were from Russia and the Warsaw Pact countries. Zimmerman (Genesis: The Story of Apollo 8) recounts this era of space exploration, beginning with the American-Russian rivalry in the 1960s and concluding with their present-day collaboration on the International Space Station. He reminds us about the short-lived 1970s Skylab program, which was to have been followed by other U.S. space stations. Granted access to Russian archives and interviews with cosmonauts and their families, the author describes the Soviet program in great detail. The original Russian space stations, he reports, were intended primarily for propaganda and military purposes, but they also included a variety of scientific experiments and perfected the use of unmanned "freighters" to bring supplies and parts from Earth. If readers remember anything about the Russian program, it is probably the troubled final months of the Mir station, but Zimmerman describes the heroic efforts of cosmonauts to put out fires and make extended space walks to undertake complicated repairs. The Russians also conducted extensive research on the effects of living in space on the human body, research that will be invaluable for possible future travel to other planets. This book will be of interest primarily to scientists and hard-core science buffs, but it will undoubtedly be the leading book on the Russian space station program for the foreseeable future.