1982, New York, Cambrige University Press. 8ºM, 21x14cm, 174p. Rústica ilustrada en buen estado, alguna ligera señal de uso. Foreword by Carl Sagan. «Why do galaxies seem to fly from us? Is space so strongly curved that by going straight ahead we come up behind ourselves? Did it all begin with an enormous explosion, the famous «big bang», which decided our fate in the first quarter of an hour? Will the expansion of the universe continue for ever and leave us more and more isolated and shivering, or will space collapse into a new inferno? Can black holes enable us to communicate with universes existing parallel with our own? Are extraterrestrial beings spying on us or are they so far away that it would take millions of years to exchange a simple radio message? These are the questions wich this rigorous and enthusiastic scientist tries to answer with complete honesty and nontechnical clarity in the light of the most recent discoveries».