Challenging the limitless ocean of space , 20th -century man confronts the most awesome of all frontiers. In the first busy decade of the Space Age, Man's courage and technology have carried them away from the home planet toward supreme adventure. This lovely novel encompasses the whole thrilling pageant: from Yuri Gargarin, the first man to orbit earth, to the epic walks in space; from the first simple satellites, to the complex giants, whirling through the reaches of interplanetary space.