Overflight By Satellite.

In the sinister shadows of the remarkable space vehicles now orbiting the earth, the fuss raised about the espionage activities of the earth-bound U-2 seems a piddling exercise in futility originally, the first American spy-in-the-sky satellite was to be called Sentry, but, to pacify the State Department, this harsh-sounding name was soon dropped and the less sensitive title of Discoverer was substituted. Several test satellites flying under this latter nomenclature have already been placed into polar orbits by the U.S. Air Force during the past year. In addition to that the article presents various other information.