CHAPTER I Trouble in the Sky The U.S. Signal Corps announced the discovery of a new satellite of Earth in the latter part of July, and newspapers everywhere broke out in a rash of pseudo-scientific comment. The new satellite had been picked up by Signal Corps radars, in the course of experiments to work out a technic for detecting guided missiles at extreme range, while they were still rising in their high-arched flight beyond the atmosphere. The radars picked up indications of an object of appr