Reviews
"This book is still of interest today in the same manner that we still have an interest in Einstein's Theory of Relativity and Darwin's Origin of Species by Natural Selection - it places us at a critical moment in the development of a revolutionary concept that is firmly established today. Reading this book is a humbling experience that places into perspective the extraordinary progress that we have made in our exploration of space." Michael Ciancone Chair, History Committee, American Astronautical Society "One could say with very little exaggeration that we, Oberth's successors, have spent the better part of a century bringing to fruition some of the things imagined by this unique mind. Everyone in astronautics today owes it to himself or herself to become familiar with this pioneering work. Now, with this translation, they can." Mike Griffin President, American Institute of Aeronautics and Astronautics
