A noted British scientist gives the intelligent lay reader, the trained scientist too, his thoughts on the exploration, use of, and control of outer space within our time. Based on a recent series of lectures at the University of Wales, the book is short. But it is literally packed with information, presented in an intelligent semi-technical style which is bound to hold the readers' attention. The nature of the universe, and how it has been examined so far by telescope, radio waves, and rocketry, occupies a good part of the early sections of the book. The nature of the solar system, the arrangement of stars in galaxies, and conjecture on both the origin of the universe and the possibility of life on other planets makes an equally fascinating section. But perhaps most refreshing of all in an age of so many science books is the inclusion of the author's own thoughts on the uses and misuses of space once man has learned to travel about in it.