Affixed to each Voyager craft was a gold-coated copped phonograph record as a message to possible extra-terrestrial civilizations that might encounter the spacecraft in some distant space and time. Each record contained 118 photographs of our planet; almost 90 minutes of the world's greatest music; an evolutionary audio essay on "The Sounds of Earth"; and greetings in almost sixty human languages (and one whale language). This book is an account, written by those chiefly responsible for the contents of the Voyager Record, of why they did it, how they selected the repertoire, and precisely what the record contains.

    The information presented includes: definitions, names, historical background, coordinates, classifications, physical descriptions, maps, charts, sketches, and observing guides. All told in an engaging manner.The series became an instant success with amateur astronomers, and remained so for decades. While it is now dated, it is still a popular source of information.Volume One lists the constellations from Andromeda to Cetus.

    Summarizes the present state of knowledge about the interstellar medium and provides the latest observational data. Physics and chemistry of the interstellar medium are treated, with frequent references to observational results. The overall equilibrium and dynamical state of the interstellar gas are described, with discussions of explosions produced by star birth and star death and the initial phases of cloud collapse leading to star formation.

    Includes instructions for a model multistage rocket and an explanation of rocket flight.